Downlink signalling in a wireless communications network
By enabling flexible scheduling of DL signalling during DL RS transmissions through capability exchange, the inefficiencies in high-frequency wireless networks are addressed, enhancing throughput and reducing latency.
Patent Information
- Application Number
- PCT/SE2024/050277
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-10-02
AI Technical Summary
Existing wireless communications networks face inefficiencies in downlink signalling due to restrictions on scheduling during SSB transmissions, leading to reduced throughput, spectral efficiency, and increased latency, particularly in high-frequency bands like FR2.
Wireless devices and network nodes exchange capability information to enable DL signalling on resources that partly overlap with DL RS transmissions, allowing flexible scheduling and reuse of previously restricted resources for DL data transmission.
This approach improves throughput, spectral efficiency, and reduces latency by optimizing resource utilization during DL RS transmissions, benefiting both less and more advanced wireless devices.
Smart Images

Figure SE2024050277_02102025_PF_FP_ABST
Abstract
Description
[0001] DOWNLINK SIGNALLING IN A WIRELESS COMMUNICATIONS NETWORK
[0002] TECHNICAL FIELD
[0003] Embodiments herein relate to downlink signalling in a wireless communications network. In particular, embodiments herein relate to a wireless device and method therein for enabling reception of downlink, DL, signalling during DL Reference Signal, DL RS, transmission from a network node in a wireless communications network. Embodiments herein also relate to a network node and method therein for enabling reception of downlink signalling during DL RS transmission from a network node in a wireless communications network. Further, the embodiments herein also relate to a computer program and a carrier.
[0004] BACKGROUND
[0005] In today’s wireless communications networks a number of different technologies are used, such as, 6G / New Radio (NR), Long Term Evolution (LTE), LTE-Advanced, Wideband Code Division Multiple Access (WCDMA), Global System for Mobile communications / Enhanced Data rate for GSM Evolution (GSM / EDGE), Worldwide Interoperability for Microwave Access (WiMax), or Ultra Mobile Broadband (UMB), just to mention a few possible technologies for wireless communication. A wireless communications network comprises network nodes, e.g. eNodeBs / gNBs / Radio Base Stations (RBSs), providing radio coverage over at least one respective geographical area forming a cell. This is commonly referred to as a Radio Access Network, RAN. The RAN is in turn connected to the core network in the wireless communications network via a so- called backhaul network. Wireless devices, also referred to as User Equipments (UEs), mobile stations, and / or wireless terminals, are served in the cells by the respective radio base station and are communicating with respective radio base station in the RAN over an air / radio interface. Commonly, the wireless devices transmit data over the air / radio interface to the radio base stations in uplink, UL, transmission and the radio base stations transmit data over the air / radio interface to the wireless devices in downlink, DL, transmission.
[0006] Beam
[0007] In contrast to a low frequency range, such as, the defined Frequency Range 1 (FR1) for 5G NR which includes sub-6 GHz frequency bands, an example of a high frequency range may be the defined Frequency Range 2 (FR2) for 5G NR which includes frequency bands from 24.25 GHz to 71.0 GHz. In such a high frequency range, multiple Radio Frequency, RF, beams may be used to transmit and receive signals at a network node and at a wireless device. For each DL beam from a network node or gNB DL beam, there is typically an associated best UE Rx beam for receiving the signals sent from such DL beams at the wireless device. The DL beam from the network node and the associated UE Rx beam at the wireless device may form a so-called “beam pair”. Suitable beam pairs may be identified through a so-called “beam management procedure”.
[0008] In NR, a DL beam from a network node is conventionally identified by an associated DL Reference Signal, DL RS, transmitted in the DL beam from the network node. This may be transmitted periodically, semi-persistently, or aperiodically. The associated DL RS may, for example, be a Synchronization Signal, SS, in a Synchronization Signal block, SSB. Optionally, associated DL RS may be a Channel State Information RS, CSI-RS. A wireless device may determine a most suitable DL beam from the network node to use for DL transmission by measuring a number of DL CSI-RSs, where different DL CSI-RSs are sent in different DL beams, and then report the most suitable DL beam from the network node back to the network node. The network node may then transmit a burst of DL-RS in the reported most suitable DL beam in order to let the wireless device evaluate candidate UE RX beams.
[0009] Fig. 1 illustrates this type of beam management procedure and exemplifies it using three (3) main steps (A-C). First (A), the network node may transmit wide TX beams from a network node that may cover a whole angular sector of a cell in order to find a coarse direction towards the wireless device. Here, TX beams with rather large beam widths may be utilized in which the beam RS are transmitted periodically and are shared between all wireless device of a cell. The beam RS is here typically periodic CSI-RSs or SSBs. The wireless device subsequently reports the N best TX beams to the network node and sometimes also their corresponding Reference Signal Received Power, RSRP, values. Secondly (B), the network node may refine the wide TX beam around the coarse direction in towards the wireless device by performing a new beam search. Here, aperiodic CSI-RS may be transmitted in more narrow TX beams around the coarse direction found in the previous step (A). Thirdly (C), the wireless device may use analogue beam-sweeping techniques in order to find a most suitable UE RX beam. Here, aperiodic CSI-RSs may be repeatedly transmitted in one narrow TX beam from the network node. Optionally, the wireless device may determine a most suitable UE RX beam based on periodic SSB transmission.
[0010] A SSB is a broadcast signal in NR that helps with providing, for example, initial synchronization and basic system information used for initial access and mobility measurements. Fig. 2 shows one example of an SSB. Here, the SSB spans 4 Orthogonal Frequency-Division Multiplexing (OFDM) symbols and comprise a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS) and a Physical Broadcast CHannel (PBCH). The PSS and SSS part of the SSB is transmitted over 127 sub-carriers, where the sub-carrier spacing may be 15 / 30 kHz for below 6 GHz and 120 / 240 kHz for above 6 GHz.
[0011] For low frequencies, such as, e.g. FR1, each cell may transmits one SSB that covers the whole cell. This is illustrated and exemplified in Fig. 3A. However, for higher frequencies, such as, e.g. FR2, several beamformed SSB may be needed to attain coverage over the whole cell. This is illustrated and exemplified in Fig. 3B. Here, the maximum number of SSBs per cell may, for example, be four (4) below 3 GHz, eight (8) between 3 and 6 GHz, and sixty-four (64) above 6 GHz. The SSBs may be transmitted in an SSB burst which may last up to 5 ms. The periodicity of the SSB burst may, for example, be configurable with the following options: 5, 10, 20, 40, 80, 160 ms.
[0012] An issue is how to improve DL signalling in a wireless communications networks having implemented beam management procedures as exemplified above.
[0013] SUMMARY
[0014] It is an object of the present disclosure to improve downlink signalling in wireless communications networks.
[0015] According to a first aspect of embodiments herein, the object is achieved by a method performed by a wireless device for enabling reception of downlink, DL, signalling during a DL Reference Signal, DL RS, transmission from a network node in a wireless communications network. The method comprising transmitting , to the network node, capability information of the wireless device to receive DL signalling during the DL RS transmission. The method also comprises receiving, from the network node, scheduling information indicating DL resources on which the wireless device is to receive the DL signalling, wherein the DL resources are time-wise partly overlapping with DL resources used for the DL RS transmission and complies with the transmitted capability information. The method further comprises receiving DL signalling on the DL resources indicated by the network node. According to a second aspect of embodiments herein, the object is achieved by a wireless device for enabling reception of DL signalling during a DL RS transmission from a network node in a wireless communications network. The wireless device is configured to transmit, to the network node, capability information of the wireless device to receive DL signalling during the DL RS transmission. The wireless device is also configured to receive, from the network node, scheduling information indicating DL resources on which the wireless device is to receive the DL signalling, wherein the DL resources are time- wise partly overlapping with DL resources used for the DL RS transmission and complies with the transmitted capability information. Further, the wireless device is configured to receive DL signalling on the DL resources indicated by the network node.
[0016] According to a third aspect of embodiments herein, the object is achieved by a method performed by a network node for enabling reception of DL signalling in a wireless device during a DL RS transmission from the network node in a wireless communications network. The method comprising receiving, from the wireless device, capability information of the wireless device to receive DL signalling during the DL RS transmission. The method also comprises transmitting, to the wireless device, scheduling information indicating DL resources on which the wireless device is to receive the DL signalling, wherein the DL resources are time-wise partly overlapping with DL resources used for the DL RS transmission and complies with the transmitted capability information. Further, the method comprises transmitting DL signalling on the indicated DL resources to the wireless device..
[0017] According to a fourth aspect of embodiments herein, the object is achieved by a network node for enabling reception of DL signalling in a wireless device during a DL RS transmission from the network node in a wireless communications network. The network node is configured to receive, from the wireless device, capability information of the wireless device to receive DL signalling during the DL RS transmission. The network node is also configured to transmit, to the wireless device, scheduling information indicating DL resources on which the wireless device is to receive the DL signalling, wherein the DL resources are time-wise partly overlapping with DL resources used for the DL RS transmission and complies with the transmitted capability information. Further, the network node is configured to transmit DL signalling on the indicated DL resources to the wireless device. According to a fifth aspect of the embodiments herein, a computer program is also provided configured to perform the method described above. Further, according to an sixth aspect of the embodiments herein, carriers are also provided configured to carry the computer program configured for performing the method described above.
[0018] By enabling wireless devices to receive DL signalling on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission and complies with its capabilities as described above, the network node is able to schedule capable wireless devices for DL signalling, i.e. DL signals, channels and / or data, during all or a subset of all DL RS transmissions. This may also be performed either intra-carrier or over multiple carriers. This will improve the throughput, spectral efficiency, and / or latency in a wireless communications network, and thus also improve downlink signalling in wireless communications networks.
[0019] BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Features and advantages of the embodiments will become readily apparent to those skilled in the art by the following detailed description of exemplary embodiments thereof with reference to the accompanying drawings, wherein:
[0021] Fig. 1 illustrates three (3) different conventional beam-finding procedures,
[0022] Fig. 2 illustrates an example of a SSB in time and frequency,
[0023] Fig. 3A illustrates an example of a single SSB covering a cell,
[0024] Fig. 3B illustrates an example of multiple SSBs covering a cell,
[0025] Fig. 4 is a schematic block diagram of a wireless communications network comprising a network node and a wireless device according to some embodiments,
[0026] Fig. 5 is a flowchart depicting embodiments of a method in a wireless device,
[0027] Fig. 6 is a flowchart depicting embodiments of a method in a network node,
[0028] Fig. 7 is signalling diagram depicting embodiments of method in system comprising embodiments of a wireless device and a network node, Fig. 8 is a block diagram depicting embodiments of a wireless device,
[0029] Fig. 9 is a block diagram depicting embodiments of a network node.
[0030] DETAILED DESCRIPTION The figures are schematic and simplified for clarity, and they merely show details which are essential to the understanding of the embodiments presented herein, while other details have been left out. Throughout, the same reference numerals are used for identical or corresponding parts or steps.
[0031] Fig. 4 depicts an example of a wireless communications network 100 in which embodiments herein may operate. In some embodiments, the wireless communications network 100 may be a radio communications network, such as, 6G, NR or NR+ telecommunications network. However, the wireless communications network 100 may also employ technology of any one of 3 / 4 / 5G, LTE, LTE-Advanced, WCDMA, GSM / EDGE, WiMax, UMB, GSM, or any other similar network or system. The wireless communications network 100 may also employ technology transmitting on millimetrewaves (mmW), such as, an Ultra Dense Network, UDN. In some embodiments, the wireless communications network 100 may also employ transmission supporting WiFi transmission, e.g. the wireless communications standard IEEE 802.11ad or similar.
[0032] The wireless communications network 100 may comprise a network node 110. The network node 110 may be configured to serve wireless devices in at least one cell or coverage area 115, respectively. Also, the network node 110 may correspond to any type of network node or radio network node capable of communicating with wireless devices in the wireless communications network 100, such as, a base station (BS), a radio base station, gNB, eNB, eNodeB, a Home NodeB, a Home eNodeB, a femto Base Station (BS), or a pico BS in the wireless communications network 100. Further examples of the network node 110 are repeaters, multi-standard radio (MSR) radio nodes such as MSR BSs, network controllers, radio network controllers (RNCs), base station controllers (BSCs), relays, donor node controlling relays, base transceiver stations (BTSs), access points (APs), transmission points, transmission nodes, Remote Radio Units (RRUs), Remote Radio Heads (RRHs) or nodes in distributed antenna system (DAS).
[0033] In the example scenario shown in Fig. 4, a wireless device 121 is located within range of the network node 110. The wireless device 121 is configured to communicate within the wireless communications network 100 via the network node 110 over a radio link 131 served by the network node 110. In other words, the wireless device 121 may be configured to transmit data over an air or radio interface to the network node 110 in uplink, UL, transmission, and the network node 110 may transmit data over an air or radio interface to the wireless device 121 in downlink, DL, transmission. The wireless device 121 may be any type of wireless devices or mobile terminals capable of communicating with a network node in a cellular, mobile or radio communication network or system, such as, the wireless communications network 100. Non-exhausting examples of such wireless devices are mobile phones, cellular phones, Personal Digital Assistants (PDAs), smart phones, tablets, Laptop Mounted Equipment (LME) (e.g. USB), Laptop Embedded Equipments (LEEs), etc. Further examples of such UEs are loT devices, sensors equipped with wireless communication capabilities, Machine Type Communication (MTC) devices, Machine to Machine (M2M) devices, Customer Premises Equipment (CPE), target devices, device-to-device (D2D) enabled wireless devices, wireless devices capable of machine to machine (M2M) communication, etc.
[0034] As part of the developing of the embodiments described herein, it has been realized that, according to NR specifications for FR2, no DL transmission may be scheduled on the un-used sub-carriers of OFDM symbols used for SSB transmission. This is because the wireless device 121 may need to sweep UE RX beam during SSB transmission. This un-used spectral capacity means that the throughput, spectral efficiency, and / or latency is reduced, thus affecting the signalling in a wireless communications network.
[0035] Since wireless devices are getting more advanced, including beamforming architectures, as well as, new frequency bands being introduced between FR1 and FR2 (i.e. 6-24 GHz) in future generations, the current 3GPP restrictions in 3GPP for FR2 of not scheduling wireless devices during SSB transmission may be somewhat restrictive. For example, it has been envisioned that digital beamforming may in the future be introduced for advanced wireless devices also at higher frequencies, which would mean that these wireless devices may not need to perform UE RX beam sweep during SSB transmission. Additionally, for the new frequency bands between 6-24 GHz, for the same carrier, some less advanced wireless devices may use analogue beamforming and hence need to sweep UE RX beams during SSB transmission, while some more advanced wireless devices may use digital beamforming and hence might not need to perform UE RX beam sweeping during SSB transmission.
[0036] Furthermore, as more and more SSB beams are used and are likely to increase, the overhead is also likely to increase; especially, considering that wireless devices transmitting on FR2 can not be scheduled in OFDM symbols containing an SSB transmission. The latter is also applicable across carriers for intra band carrier aggregation, that is, even if a SSB is transmitted in a first carrier for intra band carrier aggregation, wireless devices transmitting on FR2 can not be scheduled for other signals or channels in the other carriers during the SSB transmission slots. For terra Hz frequencies, the number of SSBs, and the number of symbols comprised in an SSB are expected to increase even further. This will result in even more overhead.
[0037] This issue is addressed by the embodiments described herein by re-using parts of the frequency band during SSB transmission for DL signalling, e.g. DL data, to some wireless devices in a wireless communications network that is based on capability signalling from those wireless devices; the wireless here being wireless device operating at medium to high frequencies in the available band spectrum. The capability signalling from the wireless devices may according to some embodiments indicate if it needs to use SSB beams for RX beam sweep or not, how often it needs to listen to SSBs for RX beam sweep, etc. According to some embodiments, a wireless device that have few analogue beams to evaluate, or is able to evaluate multiple analogue beams simultaneously using the same received SSB, may only need to sweep UE RX beams on a subset of all SSB bursts, and hence may be scheduled with DL data during the remaining SSB bursts.
[0038] It should be noted herein that the term “SSB” as used hereinafter only refers to one exemplary embodiment of a DL RS transmission and may be interchangeable used for others term reflecting DL Reference Signals, DL RS, used for initial synchronization and / or conveying system information in a wireless communications network.
[0039] Examples of embodiments of a method performed by a wireless device 121 for enabling reception of downlink, DL, signalling during a DL Reference Signal, DL RS, transmission from a network node 110 in a wireless communications network 100, will now be described with reference to the flowchart depicted in Fig. 5. Fig. 5 is an illustrated example of actions or operations which may be taken by the wireless device 121 in the wireless communications network 100 as shown in Fig. 4. The method may comprise the following actions.
[0040] Action 501
[0041] The wireless device 121 transmits, to the network node 110, capability information of the wireless device 121 to receive DL signalling during the DL RS transmission. This means, for example, that the wireless device 121 may send a message indicating a capability to receive DL signals, channels and / or data during SSB transmission, e.g. at frequencies above 6 GHz (also referred herein as higher frequencies or a higher frequency range). In other words, wireless device 121 may send a message indicating its capability for receiving DL signals, channels and / or data that are at least partly time-wise overlapping with the SSB transmission. Here, the SSBs referred to are the SSBs that are transmitted in the same carrier, or in a carrier that belongs to the same intra-band carrier aggregation. In some embodiments, only cell-defining SSBs may be considered, while in some embodiments, both cell defining and non-cell defining SSBs may be considered. Additionally, in some embodiments, only non-cell defining SSBs may also be considered.
[0042] In some embodiments, the capability information may comprise information indicating that the wireless device 121 is capable of receiving DL signalling during all or a subset of the DL RS transmission. This means, for example, that the wireless device 121 may send a message indicating that it always support receiving DL signals, channels and / or data during SSB transmissions or for all, or a subset of all, SSB transmission bursts. The capability information may also comprise information indicating that the wireless device 121 is capable of receiving a Radio Resource Control, RRC, configuration, wherein the RRC configuration indicates to the wireless device 121 that DL signalling is able to be scheduled by the network node 110 on DL resources that are time- wise partly overlapping with the DL resources used for the DL RS transmission. This means, for example, that the wireless device 121 may send a message indicating that it supports receiving an RRC configuration from the network node 110, where the RRC configuration indicates to the wireless device 121 that the wireless device 121 may be scheduled with DL signals, channels and / or data that are time-wise overlapping with SSB transmissions. Further, the capability information may comprise information indicating that the wireless device 121 is capable of providing scheduling information to the network node 110, wherein the scheduling information indicates to the network node 110 if, when and / or where the network node 110 is able to schedule DL signalling to the wireless device 121 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. This means, for example, that the wireless device 121 may send a message indicating that it supports UE-initiated indication. Here, the UE- initiated indication is used to indicate to the network node 110 if / when / where the network node 110 may schedule the wireless device 121 with DL signals, channels and / or data that are time-wise overlapping with SSB transmissions. For example, in case the wireless device 121 is stationary in a fixed location, and therefore do not need to evaluate UE RX beams on SSB more seldom, the wireless device 121 may indicate, to the network node 110, that, for at least some of the SSB transmissions, the wireless device 121 may be scheduled with DL signals, channels and / or data, even if e.g. the wireless device 121 employs analogue beamforming. It also means that the capability information may also comprise information indicating how frequently the wireless device 121 needs to sweep UE RX beams on SSBs. For example, in case the wireless device 121 indicates that it needs to sweep UE RX beams on every third (3rd) SSB burst transmissions, or every 60ms, then the network node 110 is informed that it may schedule the wireless device 121 with time-wise overlapping DL signals, channels and / or data in 2 out of 3 SSB burst transmissions to the wireless device 121. According to another example, in case the wireless device 121 is tracking one or more SSBs, other than the SSB it used to connect to the cell, the wireless device 121 may indicate, to the network node 110, a reference to such SSBs so that the wireless device 121 may be scheduled with PDSCH in DL resources associated with such SSBs. Optionally, the wireless device 121 may indicate, to the network node 110, a reference to the scheduling DL resources associated with such SSBs.
[0043] Action 502
[0044] Optionally, after transmitting the capability information in Action 501 , the wireless device 121 may receive, from the network node 110, configuration information associated with scheduling of DL signalling on the DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. This means, for example, that the wireless device 121 may be configured by the network node 110 to be scheduled with DL signals, channels and / or data that are time-wise overlapping with SSBs or not to be scheduled with DL signals, channels and / or data that are time-wise overlapping with SSBs.
[0045] In some embodiments, the configuration information may indicate to the wireless device 121 that DL signalling is able to be scheduled by the network node 110 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. This means, for example, that the wireless device 121 may be informed by the network node 110 that the network node 110 is capable of schedule DL signalling to the wireless device 121 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission, i.e. re-use DL resources formerly restricted to DL RS transmissions only to now comprise DL signalling.
[0046] In some embodiments, the configuration information may comprise information indicating the DL RS transmission for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the indicated DL RS transmission. This means, for example, that the wireless device 121 may be configured by the network node 110, via the configuration information, regarding which SSBs might be scheduled with time-wise overlapping DL signals, channels and / or data for the wireless device 121. For example, the wireless device 121 may be configured such that for all SSBs, except the SSB(s) that the wireless device 121 currently is connected to (i.e. the SSB that is associated with the activated TCI state), may be used for time-wise overlapping DL signals, channels and / or data. In this case, the wireless device 121 may still use the currently connected SSB for UE RX beam sweeping. This advantageously enables the wireless device 121 to ensure that it has an up-to-date UE RX beam for the activated TCI state.
[0047] Furthermore, this may be also useful in a situation that the network node 110 does not need to transmit other signals during all SSB time slots. For example, in case the network node 110 transmits 24 SSBs to the wireless device 121, but the network node 110 only uses the first 12 SSBs for time-wise overlapping transmissions of DL signals, channels and / or data, it may be advantageous if the network node 110 indicates that there will not be any time-wise overlapping transmissions of DL signals, channels and / or data during the last 12 SSBs. This is because, in case the wireless device 121 does not need to perform UE RX beam sweep on SSBs, then the wireless device 121 is able to turn off parts of its receiver during these SSB time slots, also referred to as “microsleep”, since the wireless device 121 then is informed by the network node 110 that it will not be scheduled with any other DL transmissions during these time slots. Hence, in some embodiments, the configuration information may comprise information indicating frequency band(s) or carrier(s) for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
[0048] Also, in some embodiments, the configuration information may comprise information indicating the DL RS burst transmission for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time- wise partly overlapping with the DL resources used for the DL RS burst transmission. This means, for example, that the wireless device 121 may be configured by the network node 110, via the configuration information, that during every A / .th SSB burst, no DL signals, channels and / or data will be time-wise overlapping with the SSB transmission to the wireless device 121. This means that the wireless device 121 is free to perform measurements, such as, e.g. UE RX beam sweep, on every A / :th SSB burst, while for all other SSB bursts, the wireless device 121 may be scheduled with DL signals, channels and / or data time-wise overlapping with SSBs. In some embodiments, the network node 110 may configure the wireless device 121 so that the wireless device 121 is informed about which SSB bursts that the wireless device 121 may be scheduled with time-wise overlapped DL signals, channels and / or data, and which SSB bursts that the wireless device 121 will not be scheduled with time-wise overlapped DL signals, channels and / or data. This is particularly advantageous if, for example, the wireless device 121 has few analogue beams to evaluate or the wireless device 121 is able to evaluate multiple analogue beams simultaneously using the same received SSB. The latter, for example, by using multiple RX chains and / or digital / hybrid beamforming architectures.
[0049] In some embodiments, the configuration information may be received via RRC signalling. This means, for example, that the wireless device 121 may be configured by the network node 110 via RRC configuration, wherein the RRC configuration may indicate to the wireless device 121 during which DL resources that the wireless device 121 might be scheduled with DL signals, channels and / or data time-wise overlapping with SSBs. Here, according to some embodiments, the RRC configuration may indicate that these DL resources may be entirely comprised in the un-occupied subcarriers or Physical Resource Blocks (PRBs) associated with the at least one of the four OFDM symbols that constitute one SSB. Optionally, the RRC configuration may indicate that these DL resources may be entirely comprised in the un-occupied subcarriers or PRBs associated with at least one symbol of the four OFDM symbols that constitute a first SSB and at least one symbol of the four OFDM symbols that constitute a second SSB. Here, the first and second SSBs may be allocated in the same OFDM slot or not. When these DL resources are not entirely comprised in the un-occupied subcarriers or PRBs associated with OFDM symbols that constitute one or more SSBs, the part of these DL resources that are not time-overlapping with the SSB transmissions may occur in the OFDM symbols in between the SSBs. The latter may, for example, the first and / or last two OFDM symbols of a slot containing SSBs. These symbols conventionally being are reserved for potential UL and DL control signalling as described in “5G A / R: The Next Generation Wireless Access Technology, E. Dahlman, S. Parkvall and J. Skold, Academic Press (17 Augusti 2018), ISBN-13 978-0128143230, pages 315-317. Hence, the configuration information may also comprise information indicating the Orthogonal Frequency-Division Multiplexing, OFDM, symbols of the DL RS transmission for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
[0050] Action 503
[0051] After receiving the configuration information in Action 502, the wireless device 121 may optionally transmit, to the network node 110, confirmation information that DL signalling to the wireless device 121 is able to be scheduled by the network node 110 on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission. This means, for example, that the wireless device 121 may indicate to the network node 110 if, e.g. during a certain time, it may be scheduled with DL signals, channels and / or data in DL resources that are time-wise overlapping with SSBs. For example, in case the wireless device 121 is stationary in a fixed location and therefore do not need upcoming one or more SSBs to evaluate different UE RX beam, the wireless device 121 may indicate and confirm, to the network node 110, that, for at least some of the SSB transmissions, the wireless device 121 may be scheduled with DL signals, channels and / or data in DL resources that are time-wise overlapping with SSBs. In some embodiments, the one or more SSBs indicated by the wireless device 121 may be a subset of the SSBs indicated by the network node 110 in the configuration information in Action 502. Here, in some embodiments, the confirmation information may be transmitted via Physical Uplink Control Channel, PUCCH, or Physical Uplink Shared Channel, PUSCH, signalling.
[0052] In some embodiments, the confirmation information may comprise information indicating the DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission which the network node 110 is able to schedule for DL signalling to the wireless device 121. Here, according to some embodiments, the indicated DL resources are associated with the OFDM symbols of the DL RS transmission indicated in the configuration information. This means, for example, that the wireless device 121 may explicitly indicate to the network node 110 for which DL resources used for DL RS transmissions that may be scheduled with time-wise overlapping DL signals, channels and / or data.
[0053] Action 504
[0054] After transmitting the capability information in Action 501, the wireless device 121 receives, from the network node 110, scheduling information indicating DL resources on which the wireless device 121 is to receive the DL signalling, wherein the DL resources are time-wise partly overlapping with DL resources used for the DL RS transmission and complies with the transmitted capability information. This means, for example, that the wireless device 121 may be scheduled by the network node 110 with DL signals, channels and / or data that are partly overlapping with SSB transmissions without disrupting the beamforming or UE RX beam sweep procedures of the wireless device 121. Here, it should be noted that the term “complies with the capability information” here refers to the scheduling of DL signals, channels or data on time-wise overlapping DL resources used for the DL RS transmission, e.g. SSBs, being performed by the network node 110 in accordance with the capability information reported by the wireless device 121 in action 501. For example, the scheduling of DL signals, channels or data on time- wise on overlapping DL resources used for the DL RS transmission is performed so as to not be in conflict with the indicated capability information reported by the wireless device 121 , i.e. the network node 110 should not schedule DL signals, channels or data on time- wise on overlapping DL resources that the wireless device 121 has indicated it will not be able to receive the DL signals, channels or data. It should further be noted that the scheduling of DL signals, channels or data on time-wise overlapping DL resources used for the DL RS transmission, e.g. SSBs, being performed by the network node 110 may also be made in accordance with the confirmation information reported by the wireless device 121 in Action 503, i.e. the DL resources may also comply with the transmitted confirmation information.
[0055] Action 505
[0056] After receiving the scheduling information in Action 504, the wireless device 121 receives DL signalling on the DL resources indicated by the network node 110. This means, for example, that the wireless device 121 may receive DL signals, channels and / or data in DL resources that are partly overlapping with SSB transmissions. This will improve the throughput, spectral efficiency, and / or latency in the wireless communications network 100, and thus also improve downlink signalling in the wireless communications network 100. Further, in some embodiments, the DL RS transmission occur at frequencies above 6 GHz and are transmitted in the same carrier or in a carrier that belongs to the same intra-band carrier aggregation. This means that, for frequency bands between 6-24 GHz or higher, both less advanced wireless devices (still using analogue beamforming and hence may need to sweep UE RX beams during SSB transmissions) and more advanced wireless devices (using digital beamforming and hence may not need to perform UE RX beam sweeping during SSB transmissions) may benefit from the re-use of DL resources formerly restricted to DL RS transmissions to now also comprise DL signals, channels or data. The frequencies above 6 GHz, such as, e.g. FR2, is also referred herein as higher frequencies or a higher frequency range, while frequencies at or below 6 GHz, such as, e.g. FR1 , is referred herein as lower frequencies or a lower frequency range. It should here be noted that, according to some embodiments, the DL resources are time-frequency resources or resource blocks, RBs. Additionally, it should also be noted that according to some embodiments, the DL signalling comprise DL data. Furthermore, according to some embodiments, the DL RS transmission is a Synchronization Signal (SS) and Physical Broadcast Channel (PBCH) block (SSB) transmission.
[0057] Examples of embodiments of a method performed by a network node 110 for enabling reception of DL signalling in a wireless device 121 during a DL RS transmission from the network node 110 in a wireless communications network 100, will now be described with reference to the flowchart depicted in Fig. 6. Fig. 6 is an illustrated example of actions or operations which may be taken by the network node 110 in the wireless communications network 100 as shown in Fig. 4. The method may comprise the following actions.
[0058] Action 601
[0059] The network node 110 receives, from the wireless device 121, capability information of the wireless device 121 to receive DL signalling during the DL RS transmission. This means, for example, that the network node 110 may receive a message indicating a capability of the wireless device 121 to receive DL signals, channels and / or data during SSB transmission. In other words, wireless device 121 may send a message to the network node 110 indicating its capability for receiving DL signals, channels and / or data that are at least partly time-wise overlapping with the SSB transmission. Here, the SSBs referred to are the SSBs that are transmitted in the same carrier, or in a carrier that belongs to the same intra-band carrier aggregation. In some embodiments, only cell-defining SSBs may be considered, while in some embodiments, both cell defining and non-cell defining SSBs may be considered. Additionally, in some embodiments, only non-cell defining SSBs may also be considered.
[0060] In some embodiments, the capability information may comprise information indicating that the wireless device 121 is capable of receiving DL signalling during all or a subset of the DL RS transmission. This means, for example, that the network node 110 may receive a message indicating that the wireless device 121 always support receiving DL signals, channels and / or data during SSB transmissions or for all, or a subset of all, SSB transmission bursts. The capability information may also comprise information indicating that the wireless device 121 is capable of receiving a Radio Resource Control, RRC, configuration, wherein the RRC configuration indicates to the wireless device 121 that DL signalling is able to be scheduled by the network node 110 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. This means, for example, that the network node 110 may receive a message indicating that the wireless device 121 supports receiving an RRC configuration from the network node 110, where the RRC configuration indicates to the wireless device 121 that the wireless device 121 may be scheduled with DL signals, channels and / or data that are time-wise overlapping with SSB transmissions. Further, the capability information may comprise information indicating that the wireless device 121 is capable of providing scheduling information to the network node 110, wherein the scheduling information indicates to the network node 110 if, when and / or where the network node 110 is able to schedule DL signalling to the wireless device 121 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. This means, for example, that the network node 110 may receive a message indicating that the wireless device 121 supports UE-initiated indication. Here, the UE-initiated indication may be used to indicate to the network node 110 if / when / where the network node 110 may schedule the wireless device 121 with DL signals, channels and / or data that are time-wise overlapping with SSB transmissions. For example, in case the wireless device 121 is stationary in a fixed location, and therefore do not need to evaluate UE RX beams on SSB more seldom, the wireless device 121 may indicate, to the network node 110, that, for at least some of the SSB transmissions, the wireless device 121 may be scheduled with DL signals, channels and / or data, even if e.g. the wireless device 121 employs analogue beamforming. It also means that the capability information may also comprise information indicating how frequently the wireless device 121 needs to sweep UE RX beams on SSBs. For example, in case the wireless device 121 indicates that it needs to sweep UE RX beams on every third (3rd) SSB burst transmissions, or every 60ms, then the network node 110 is informed that it may schedule the wireless device 121 with time-wise overlapping DL signals, channels and / or data in 2 out of 3 SSB burst transmissions to the wireless device 121. According to another example, in case the wireless device 121 is tracking one or more SSBs, other than the SSB it used to connect to the cell, the wireless device 121 may indicate, to the network node 110, a reference to such SSBs so that the wireless device 121 may be scheduled with PDSCH in DL resources associated with such SSBs. Optionally, the wireless device 121 may indicate, to the network node 110, a reference to the scheduling DL resources associated with such SSBs.
[0061] Action 602 Optionally, after receiving the capability information in Action 601, the network node 110 may transmit, to the wireless device 121, configuration information associated with scheduling of DL signalling on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission. This means, for example, that the network node 110 may configure the wireless device 121 to be scheduled with DL signals, channels and / or data that are time-wise overlapping with SSBs or not to be scheduled with DL signals, channels and / or data that are time-wise overlapping with SSBs.
[0062] In some embodiments, the configuration information may indicate to the wireless device 121 that DL signalling is able to be scheduled by the network node 110 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. This means, for example, that the network node 110 may inform the wireless device 121 that the network node 110 is capable of schedule DL signalling to the wireless device 121 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission, i.e. re-use DL resources formerly restricted to DL RS transmissions only to now comprise DL signalling.
[0063] In some embodiments, the configuration information may comprise information indicating the DL RS transmission for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the indicated DL RS transmission. This means, for example, that the network node 110 may indicate, in the configuration information to the wireless device 121, which SSBs might be scheduled with time-wise overlapping DL signals, channels and / or data for the wireless device 121. For example, the network node 110 may indicate to the wireless device 121 that for all SSBs except the SSB(s) that the wireless device 121 currently is connected to, i.e. is the SSB that is associated with the activated TCI state, may be used for time-wise overlapping DL signals, channels and / or data. In this case, the wireless device 121 may still use the currently connected SSB for UE RX beam sweeping. This advantageously enables the wireless device 121 to ensure that it has an up-to-date UE RX beam for the activated TCI state.
[0064] Furthermore, this may be also useful in a situation that the network node 110 does not need to transmit other signals during all SSB time slots. For example, in case the network node 110 transmits 24 SSBs to the wireless device 121, but the network node 110 only uses the first 12 SSBs for time-wise overlapping transmissions of DL signals, channels and / or data, it may be advantageous if the network node 110 indicates that there will not be any time-wise overlapping transmissions of DL signals, channels and / or data during the last 12 SSBs. This is because, in case the wireless device 121 does not need to perform UE RX beam sweep on SSBs, the wireless device 121 is able to turn off parts of its receiver during these SSB time slots, also referred to as “microsleep”, since the wireless device 121 then is informed by the network node 110 that it will not be scheduled with any other DL transmissions during these time slots. Hence, in some embodiments, the configuration information may comprise information indicating frequency band(s) or carrier(s) for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
[0065] Also, in some embodiments, the configuration information may comprise information indicating the DL RS burst transmission for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time- wise partly overlapping with the DL resources used for the DL RS burst transmission. This means, for example, that the network node 110 may indicate, in the configuration information to the wireless device 121, that during every A / .th SSB burst, no DL signals, channels and / or data will be time-wise overlapping with the SSB transmission. This means that the wireless device 121 is free to perform measurements, such as, e.g. UE RX beam sweep, on every N: th SSB burst, while for all other SSB bursts, the wireless device 121 may be scheduled with DL signals, channels and / or data time-wise overlapping with SSBs. In some embodiments, the network node 110 may configure the wireless device 121 so that the wireless device 121 is informed about which SSB bursts that the wireless device 121 may be scheduled with time-wise overlapped DL signals, channels and / or data, and which SSB bursts that the wireless device 121 will not be scheduled with time-wise overlapped DL signals, channels and / or data. This is particularly advantageous if, for example, the wireless device 121 has few analogue beams to evaluate or the wireless device 121 is able to evaluate multiple analogue beams simultaneously using the same received SSB. The latter, for example, by using multiple RX chains and / or digital / hybrid beamforming architectures.
[0066] In some embodiments, the configuration information may be transmitted via RRC signalling. This means, for example, that the network node 110 may configure the wireless device 121 via RRC configuration, wherein the RRC configuration may indicate to the wireless device 121 during which DL resources that the wireless device 121 might be scheduled with DL signals, channels and / or data time-wise overlapping with SSBs. Here, according to some embodiments, the RRC configuration may indicate that these DL resources may be entirely comprised in the un-occupied subcarriers or Physical Resource Blocks (PRBs) associated with the at least one of the four OFDM symbols that constitute one SSB. Optionally, the RRC configuration may indicate that these DL resources may be entirely comprised in the un-occupied subcarriers or PRBs associated with at least one symbol of the four OFDM symbols that constitute a first SSB and at least one symbol of the four OFDM symbols that constitute a second SSB. Here, the first and second SSBs may be allocated in the same OFDM slot or not. When these DL resources are not entirely comprised in the un-occupied subcarriers or PRBs associated with OFDM symbols that constitute one or more SSBs, the part of these DL resources that are not time-overlapping with the SSB transmissions may occur in the OFDM symbols in between the SSBs. The latter may, for example, the first and / or last two OFDM symbols of a slot containing SSBs. These symbols conventionally being are reserved for potential UL and DL control signalling as described in “5G A / R: The Next Generation Wireless Access Technology, E. Dahlman, S. Parkvall and J. Skbld, Academic Press (17 Augusti 2018), ISBN-13 978-0128143230, pages 315-317. Hence, the configuration information may also comprise information indicating the Orthogonal Frequency-Division Multiplexing, OFDM, symbols of the DL RS transmission for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
[0067] Action 603
[0068] After receiving the configuration information in Action 602, the network node 110 may optionally receive, from the wireless device 121, information confirming that DL signalling to the wireless device 121 is able to be scheduled by the network node 110 on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission. This means, for example, that the network node 110 may receive a message from the wireless device 121 indicating if, e.g. during a certain time, the wireless device 121 may be scheduled with DL signals, channels and / or data in DL resources that are time-wise overlapping with SSBs. For example, in case the wireless device 121 is stationary in a fixed location and therefore do not need upcoming one or more SSBs to evaluate different UE RX beam, the network node 110 may receive a message from the wireless device 121 indicating and / or confirming that, for at least some of the SSB transmissions, the wireless device 121 may be scheduled with DL signals, channels and / or data in DL resources that are time-wise overlapping with SSBs. In some embodiments, the one or more SSBs indicated by the wireless device 121 may be a subset of the SSBs indicated by the network node 110 in the configuration information in Action 602. Here, in some embodiments, the confirmation information may be received via Physical Uplink Control Channel, PUCCH, or Physical Uplink Shared Channel, PUSCH, signalling.
[0069] In some embodiments, the confirmation information may comprise information indicating the DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission which the network node 110 is able to schedule for DL signalling to the wireless device 121. Here, according to some embodiments, the indicated DL resources are associated with the OFDM symbols of the DL RS transmission indicated in the configuration information. This means, for example, that the network node 110 may receive a message from the wireless device 121 indicating that explicitly indicates for which DL resources used for DL RS transmissions that may be scheduled with time-wise overlapping DL signals, channels and / or data.
[0070] Action 604
[0071] After receiving the capability information in Action 601 , the network node 110 transmit, to the wireless device 121, scheduling information indicating DL resources on which the wireless device 121 is to receive the DL signalling, wherein the DL resources are time-wise partly overlapping with DL resources used for the DL RS transmission and complies with the transmitted capability information. This means, for example, that the network node 110 may schedule the wireless device 121 with DL signals, channels and / or data that are partly overlapping with SSB transmissions without disrupting the beamforming or UE RX beam sweep procedures of the wireless device 121. Here, it should be noted that the term “complies with the capability information” here refers to the scheduling of DL signals, channels or data on time-wise overlapping DL resources used for the DL RS transmission, e.g. SSBs, being performed by the network node 110 in accordance with the capability information reported by the wireless device 121 in action 601. It should further be noted that the scheduling of DL signals, channels or data on time-wise overlapping DL resources used for the DL RS transmission, e.g. SSBs, being performed by the network node 110 may also be made in accordance with the confirmation information reported by the wireless device 121 in Action 603, i.e. the DL resources may also comply with the transmitted confirmation information.
[0072] Action 605
[0073] After transmitting the scheduling information in Action 604, the wireless device 121 transmits DL signalling on the indicated DL resources to the wireless device 121. This means, for example, that the network node 110 may transmit DL signals, channels and / or data in DL resources that are partly overlapping with SSB transmissions. This will improve the throughput, spectral efficiency, and / or latency in the wireless communications network 100, and thus also improve downlink signalling in the wireless communications network 100.
[0074] Further, in some embodiments, the DL RS transmission occur at frequencies above 6 GHz and are transmitted in the same carrier or in a carrier that belongs to the same intra-band carrier aggregation. This means that, for frequency bands between 6-24 GHz or higher, both less advanced wireless devices (still using analogue beamforming and hence may need to sweep UE RX beams during SSB transmissions) and more advanced wireless devices (using digital beamforming and hence may not need to perform UE RX beam sweeping during SSB transmissions) may benefit from the re-use of DL resources formerly restricted to DL RS transmissions to now also comprise DL signals, channels or data. The frequencies above 6 GHz, such as, e.g. FR2, is also referred herein as higher frequencies or a higher frequency range, while frequencies at or below 6 GHz, such as, e.g. FR1 , is referred herein as lower frequencies or a lower frequency range.
[0075] It should here be noted that, according to some embodiments, the DL resources are time-frequency resources or resource blocks, RBs. Additionally, it should also be noted that according to some embodiments, the DL signalling comprise DL data. Furthermore, according to some embodiments, the DL RS transmission may be a Synchronization Signal (SS) and Physical Broadcast Channel (PBCH) block (SSB) transmission.
[0076] Fig. 7 shows a signalling diagram depicting embodiments of method in system 700 comprising embodiments of a wireless device 121 and a network node 110.
[0077] In Action 701, capability information is transmitted from the wireless device 121 and received by the network node 110, wherein the capability information indicates a capability to receive DL signalling during DL RS transmissions.
[0078] Optionally, in Action 702, configuration information may be transmitted from the network node 110 and be received by the wireless device 121, wherein the capability information is associated with scheduling of DL signalling on DL resources that is time- wise partly overlapping with DL resources used for the DL RS transmissions. In response to the configuration information received in Action 702, confirmation information may in Action 703 be transmitted by the wireless device 121 and received by the network node 110, wherein the confirmation information may indicate that DL signalling is able to be scheduled on DL resources that is time-wise partly overlapping with DL resources used for the DL RS transmissions.
[0079] In Action 704, scheduling information is transmitted by the network node 110 and received by the wireless device 121, wherein the scheduling information indicates DL resources on which the wireless device 121 is to receive the DL signalling, wherein the DL resources is time-wise partly overlapping with the DL resources used for the DL RS transmissions.
[0080] In Action 705, DL signalling is transmitted by the network node 110 and received by the wireless device 121 on the DL resources indicated by the network node 110 in Action 704.
[0081] To perform the method actions in a wireless device 121 for enabling reception of DL signalling during a DL RS transmission from a network node 110 in a wireless communications network 100, the wireless device 121 may comprise the following arrangement depicted in Fig. 8. Fig. 8 shows a schematic block diagram of embodiments of the wireless device 121. The wireless device 121 may comprise processing circuitry or processor 810 and a memory 820. The processing circuitry 810 may also comprise a receiving module 811 and a transmitting module 812. The receiving module 811 and the transmitting module 812 may also be configured to communicate and perform transmission over the wireless communications network 100. The receiving module 811 and the transmitting module 812 comprise Radio Frequency, RF, processing circuitry capable of transmitting a radio signal via a radio interface (not shown) within the wireless communications network 100. The receiving module 811 and the transmitting module 812 may also form part of a single transceiver. It should also be noted that some or all of the functionality described in the embodiments above as being performed by the wireless device 121 may be provided by the processing circuitry 810 executing instructions stored on a computer-readable medium, such as, e.g., the memory 820 shown in Fig. 8.
[0082] The wireless device 121 or processing circuitry 810 is configured to, or may comprise the transmitting module 812 configured to, transmit, to the network node 110, capability information of the wireless device 121 to receive DL signalling during the DL RS transmission. Also, the wireless device 121 or processing circuitry 810 is configured to, or may comprise the receiving module 811 configured to, receive, from the network node 110, scheduling information indicating DL resources on which the wireless device 121 is to receive the DL signalling, wherein the DL resources are time-wise partly overlapping with DL resources used for the DL RS transmission and complies with the transmitted capability information. Further, the wireless device 121 or processing circuitry 810 is configured to, or may comprise the receiving module 811 configured to, receive DL signalling on the DL resources indicated by the network node 110.
[0083] In some embodiments, the capability information may comprise information indicating that the wireless device 121 is capable of receiving DL signalling during all or a subset of the DL RS transmission. The capability information may also comprise information indicating that the wireless device 121 is capable of receiving a Radio Resource Control, RRC, configuration, wherein the RRC configuration indicates to the wireless device 121 that DL signalling is able to be scheduled by the network node 110 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. Further, the capability information may comprise information indicating that the wireless device 121 is capable of providing scheduling information to the network node 110, wherein the scheduling information indicates to the network node 110 if, when and / or where the network node 110 is able to schedule DL signalling to the wireless device 121 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
[0084] In some embodiments, the wireless device 121 or processing circuitry 810 is configured to, or may comprise the receiving module 811 configured to, receive, from the network node 110, configuration information associated with scheduling of DL signalling on the DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. Here, in some embodiments, the wireless device 121 or processing circuitry 810 may be configured to, or may comprise the receiving module 811 configured to, receive the configuration information via RRC signalling. In some embodiments, the configuration information may indicate to the wireless device 121 that DL signalling is able to be scheduled by the network node 110 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. Additionally, in some embodiments, the configuration information may comprise information indicating the DL RS transmission for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the indicated DL RS transmission. The configuration information may also comprise information indicating the Orthogonal Frequency-Division Multiplexing, OFDM, symbols of the DL RS transmission for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. Further, the configuration information may comprise information indicating frequency band(s) or carrier(s) for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. Also, the configuration information may comprise information indicating the DL RS burst transmission for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS burst transmission.
[0085] In some embodiments, the wireless device 121 or processing circuitry 810 is configured to, or may comprise the transmitting module 812 configured to, transmit, to the network node 110, confirmation information that DL signalling to the wireless device 121 is able to be scheduled by the network node 110 on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission. Here, in some embodiments, the wireless device 121 or processing circuitry 810 may be configured to, or may comprise the transmitting module 812 configured to, transmit the confirmation information via Physical Uplink Control Channel, PUCCH, or Physical Uplink Shared Channel, PUSCH, signalling. Additionally, in some embodiments, the confirmation information comprise information indicating the DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission which the network node 110 is able to schedule for DL signalling to the wireless device 121. In this case, according to some embodiments, the indicated DL resources are associated with the OFDM symbols of the DL RS transmission indicated in the configuration information.
[0086] Furthermore, the embodiments for enabling reception of DL signalling during a DL RS transmission from a network node 110 in a wireless communications network 100 described above may be implemented through one or more processors, such as the processing circuitry 810 in the the wireless device 121 depicted in Fig. 8, together with computer program code for performing the functions and actions of the embodiments herein. The program code mentioned above may also be provided as a computer program product, for instance in the form of a data carrier carrying computer program code or code means for performing the embodiments herein when being loaded into the processing circuitry 810 in the wireless device 121. The computer program code may e.g. be provided as pure program code in the wireless device 121 or on a server and downloaded to the wireless device 121. Thus, it should be noted that the modules of the wireless device 121 may in some embodiments be implemented as computer programs stored in memory, e.g. in the memory modules 820 in Fig. 8, for execution by processors or processing modules, e.g. the processing circuitry 810 of Fig. 8. Those skilled in the art will also appreciate that the processing circuitry 810 and the memory 820 described above may refer to a combination of analog and digital circuits, and / or one or more processors configured with software and / or firmware, e.g. stored in a memory, that when executed by the one or more processors such as the processing circuitry 820 perform as described above. One or more of these processors, as well as the other digital hardware, may be included in a single application-specific integrated circuit (ASIC), or several processors and various digital hardware may be distributed among several separate components, whether individually packaged or assembled into a system-on-a-chip (SoC).
[0087] To perform the method actions in a network node 110 for enabling reception of DL signalling in a wireless device 121 during a DL RS transmission from the network node 110 in a wireless communications network 100, the network node 110 may comprise the following arrangement depicted in Fig. 9. Fig. 9 shows a schematic block diagram of embodiments of the network node 110.
[0088] The network node 110 may comprise processing circuitry or processor 910 and a memory 920. The processing circuitry 1110 may also comprise a receiving module 911 and a transmitting module 912. The receiving module 911 and the transmitting module 912 may also be configured to communicate and perform transmission over the wireless communications network 100. The receiving module 911 and the transmitting module 912 comprise Radio Frequency, RF, processing circuitry capable of transmitting a radio signal via a radio interface (not shown) within the wireless communications network 100. The receiving module 911 and the transmitting module 912 may also form part of a single transceiver. It should also be noted that some or all of the functionality described in the embodiments above as being performed by the network node 110 may be provided by the processing circuitry 910 executing instructions stored on a computer-readable medium, such as, e.g., the memory 920 shown in Fig. 9.
[0089] The network node 110 or processing circuitry 910 is configured to, or may comprise the receiving module 911 configured to, receive, from the wireless device 121, capability information of the wireless device 121 to receive DL signalling during the DL RS transmission. Also, the network node 110 or processing circuitry 910 is configured to, or may comprise the transmitting module 912 configured to, transmit, to the wireless device 121, scheduling information indicating DL resources on which the wireless device 121 is to receive the DL signalling, wherein the DL resources are time-wise partly overlapping with DL resources used for the DL RS transmission and complies with the transmitted capability information. Further, the network node 110 or processing circuitry 910 is configured to, or may comprise the transmitting module 912 configured to, transmit DL signalling on the indicated DL resources to the wireless device 121.
[0090] In some embodiments, the capability information may comprise information indicating that the wireless device 121 is capable of receiving DL signalling during all or a subset of the DL RS transmission. The capability information may also comprise information indicating that the wireless device 121 is capable of receiving a Radio Resource Control, RRC, configuration, wherein the RRC configuration indicates to the wireless device 121 that DL signalling is able to be scheduled by the network node 110 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. Further, the capability information may comprise information indicating that the wireless device 121 is capable of providing scheduling information to the network node 110, wherein the scheduling information indicates to the network node 110 if, when and / or where the network node 110 is able to schedule DL signalling to the wireless device 121 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
[0091] In some embodiments, the network node 110 or processing circuitry 910 may be configured to, or may comprise the transmitting module 912 configured to, transmit, to the wireless device 121, configuration information associated with scheduling of DL signalling on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission. Here, in some embodiments, the network node 110 or processing circuitry 910 may be configured to, or may comprise the transmitting module 912 configured to, transmit the configuration information via RRC signalling. In some embodiments, the configuration information may indicate to the wireless device 121 that DL signalling is able to be scheduled by the network node 110 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. Additionally, in some embodiments, the configuration information may comprise information indicating the DL RS transmission for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the indicated DL RS transmission. The configuration information may also comprise information indicating the Orthogonal Frequency-Division Multiplexing, OFDM, symbols of the DL RS transmission for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. Further, the configuration information may comprise information indicating frequency band(s) or carrier(s) for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission. Also, the configuration information may comprise information indicating the DL RS burst transmission for which the network node 110 is able to schedule DL signalling to the wireless device 122 on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS burst transmission.
[0092] In some embodiments, the network node 110 or processing circuitry 910 may be configured to, or may comprise the receiving module 911 configured to, receive, from the wireless device 121, information confirming that DL signalling to the wireless device 121 is able to be scheduled by the network node 110 on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission. Here, in some embodiments, the network node 110 or processing circuitry 910 may be configured to, or may comprise the receiving module 911 configured to, receive the confirmation information via Physical Uplink Control Channel, PUCCH, or Physical Uplink Shared Channel, PUSCH, signalling. Additionally, in some embodiments, the confirmation information comprise information indicating the DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission which the network node 110 is able to schedule for DL signalling to the wireless device 121. In this case, according to some embodiments, the indicated DL resources are associated with the OFDM symbols of the DL RS transmission indicated in the configuration information.
[0093] Furthermore, the embodiments for enabling reception of DL signalling in a wireless device 121 during a DL RS transmission from the network node 110 in a wireless communications network 100 described above may be implemented through one or more processors, such as the processing circuitry 910 in the network node 110 depicted in Fig. 9, together with computer program code for performing the functions and actions of the embodiments herein. The program code mentioned above may also be provided as a computer program product, for instance in the form of a data carrier carrying computer program code or code means for performing the embodiments herein when being loaded into the processing circuitry 910 in the network node 110. The computer program code may e.g. be provided as pure program code in the network node 110 or on a server and downloaded to the network node 110. Thus, it should be noted that the modules of the network node 110 may in some embodiments be implemented as computer programs stored in memory, e.g. in the memory modules 920 in Fig. 9, for execution by processors or processing modules, e.g. the processing circuitry 910 of Fig. 9. Those skilled in the art will also appreciate that the processing circuitry 910 and the memory 920 described above may refer to a combination of analog and digital circuits, and / or one or more processors configured with software and / or firmware, e.g. stored in a memory, that when executed by the one or more processors such as the processing circuitry 920 perform as described above. One or more of these processors, as well as the other digital hardware, may be included in a single application-specific integrated circuit (ASIC), or several processors and various digital hardware may be distributed among several separate components, whether individually packaged or assembled into a system-on-a-chip (SoC).
[0094] The description of the example embodiments provided herein have been presented for purposes of illustration. The description is not intended to be exhaustive or to limit example embodiments to the precise form disclosed, and modifications and variations are possible in light of the above teachings or may be acquired from practice of various alternatives to the provided embodiments. The examples discussed herein were chosen and described in order to explain the principles and the nature of various example embodiments and its practical application to enable one skilled in the art to utilize the example embodiments in various manners and with various modifications as are suited to the particular use contemplated. The features of the embodiments described herein may be combined in all possible combinations of methods, apparatus, modules, systems, and computer program products. It should be appreciated that the example embodiments presented herein may be practiced in any combination with each other.
[0095] It should be noted that the word “comprising” does not necessarily exclude the presence of other elements or steps than those listed and the words “a” or “an” preceding an element do not exclude the presence of a plurality of such elements. It should further be noted that any reference signs do not limit the scope of the claims, that the example embodiments may be implemented at least in part by means of both hardware and software, and that several “means”, “units” or “devices” may be represented by the same item of hardware.
[0096] It should also be noted that the various example embodiments described herein are described in the general context of method steps or processes, which may be implemented in one aspect by a computer program product, embodied in a computer- readable medium, including computer-executable instructions, such as program code, executed by computers in networked environments. A computer-readable medium may include removable and non-removable storage devices including, but not limited to, Read Only Memory (ROM), Random Access Memory (RAM), compact discs (CDs), digital versatile discs (DVD), etc. Generally, program modules may include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. Computer-executable instructions, associated data structures, and program modules represent examples of program code for executing steps of the methods disclosed herein. The particular sequence of such executable instructions or associated data structures represents examples of corresponding acts for implementing the functions described in such steps or processes.
[0097] The embodiments herein are not limited to the above described preferred embodiments. Various alternatives, modifications and equivalents may be used. Therefore, the above embodiments should not be construed as limiting.
Claims
CLAIMS1. A method performed by a wireless device (121) for enabling reception of downlink, DL, signalling during a DL Reference Signal, DL RS, transmission from a network node (110) in a wireless communications network (100), the method comprising transmitting (501, 601), to the network node (110), capability information of the wireless device (121) to receive DL signalling during the DL RS transmission; receiving (504, 604), from the network node (110), scheduling information indicating DL resources on which the wireless device (121) is to receive the DL signalling, wherein the DL resources are time-wise partly overlapping with DL resources used for the DL RS transmission and complies with the transmitted capability information; and receiving (505, 605) DL signalling on the DL resources indicated by the network node (110).
2. The method according to claim 1, wherein the capability information comprise one or more of: information indicating that the wireless device (121) is capable of receiving DL signalling during all or a subset of the DL RS transmission; information indicating that the wireless device (121) is capable of receiving a Radio Resource Control, RRC, configuration, wherein the RRC configuration indicates to the wireless device (121) that DL signalling is able to be scheduled by the network node (110) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission; information indicating that the wireless device (121) is capable of providing scheduling information to the network node (110), wherein the scheduling information indicates to the network node (110) if, when and / or where the network node (110) is able to schedule DL signalling to the wireless device (121) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
3. The method according to claim 1 or 2, further comprising receiving (502, 602), from the network node (110), configuration information associated with scheduling of DL signalling on the DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
4. The method according to claim 3, wherein the configuration information is received via RRC signalling.
5. The method according to claim 3 or 4, wherein the configuration information indicates to the wireless device (121) that DL signalling is able to be scheduled by the network node (110) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
6. The method according to any of claims 3-5, wherein the configuration information comprise one or more of: information indicating the DL RS transmission for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the indicated DL RS transmission; information indicating the Orthogonal Frequency-Division Multiplexing, OFDM, symbols of the DL RS transmission for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission; information indicating frequency band(s) or carrier(s) for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission; information indicating DL RS burst transmission for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS burst transmission.
7. The method according to any of claims 1-6, further comprising transmitting (503, 603), to the network node (110), confirmation information that DL signalling to the wireless device (121) is able to be scheduled by the network node (110) on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission.
8. The method according to claim 7, wherein the confirmation information is transmitted via Physical Uplink Control Channel, PUCCH, or Physical Uplink Shared Channel, PUSCH, signalling.
9. The method according to claim 7 or 8, wherein the confirmation information comprise information indicating the DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission which the network node (110) is able to schedule for DL signalling to the wireless device (121).
10. The method according to claim 9, wherein the indicated DL resources are associated with the OFDM symbols of the DL RS transmission indicated in the configuration information.
11. The method according to any of claims 1-10, wherein the DL RS transmission occur at frequencies above 6 GHz and are transmitted in the same carrier or in a carrier that belongs to the same intra-band carrier aggregation.
12. The method according to any of claims 1-11 , wherein the DL signalling comprise DL data and the DL RS transmission are Synchronization Signal (SS) and Physical Broadcast Channel (PBCH) block (SSB) transmission.
13. A wireless device (121) for enabling reception of downlink, DL, signalling during a DL Reference Signal, DL RS, transmission from a network node (110) in a wireless communications network (100), the wireless device (121) being configured to transmit, to the network node (110), capability information of the wireless device (121) to receive DL signalling during the DL RS transmission, receive, from the network node (110), scheduling information indicating DL resources on which the wireless device (121) is to receive the DL signalling, wherein the DL resources are time-wise partly overlapping with DL resources used for the DL RS transmission and complies with the transmitted capability information, and receive DL signalling on the DL resources indicated by the network node (110).
14. The wireless device (121) according to claim 13, wherein the capability information comprise one or more of:information indicating that the wireless device (121) is capable of receiving DL signalling during all or a subset of the DL RS transmission; information indicating that the wireless device (121) is capable of receiving a Radio Resource Control, RRC, configuration, wherein the RRC configuration indicates to the wireless device (121) that DL signalling is able to be scheduled by the network node (110) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission; information indicating that the wireless device (121) is capable of providing scheduling information to the network node (110), wherein the scheduling information indicates to the network node (110) if, when and / or where the network node (110) is able to schedule DL signalling to the wireless device (121) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
15. The wireless device (121) according to claim 13 or 14, further configured to receive, from the network node (110), configuration information associated with scheduling of DL signalling on the DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
16. The wireless device (121) according to claim 15, wherein the configuration information is received via RRC signalling.
17. The wireless device (121) according to claim 15 or 16, wherein the configuration information indicates to the wireless device (121) that DL signalling is able to be scheduled by the network node (110) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
18. The wireless device (121) according to any of claims 15-17, wherein the configuration information comprise one or more of: information indicating the DL RS transmission for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the indicated DL RS transmission;information indicating the Orthogonal Frequency-Division Multiplexing, OFDM, symbols of the DL RS transmission for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission; information indicating frequency band(s) or carrier(s) for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission; information indicating DL RS burst transmission for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS burst transmission.
19. The wireless device (121) according to any of claims 13-18, further configured to transmit, to the network node (110), confirmation information that DL signalling to the wireless device (121) is able to be scheduled by the network node (110) on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission.
20. The wireless device (121) according to claim 19, wherein the confirmation information is transmitted via Physical Uplink Control Channel, PUCCH, or Physical Uplink Shared Channel, PUSCH, signalling.
21. The wireless device (121) according to claim 19 or 20, wherein the confirmation information comprise information indicating the DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission which the network node (110) is able to schedule for DL signalling to the wireless device (121).
22. The wireless device (121) according to claim 21 , wherein the indicated DL resources are associated with the OFDM symbols of the DL RS transmission indicated in the configuration information.
23. The wireless device (121) according to any of claims 13-22, comprising at least one processor (1110) and a memory (1120), wherein the memory (1120) is containing instructions executable by the at least one processor (1110).
24. A method performed by a network node (110) for enabling reception of downlink, DL, signalling in a wireless device (121) during a DL Reference Signal, DL RS, transmission from the network node (110) in a wireless communications network (100), the method comprising receiving (501, 701), from the wireless device (121), capability information of the wireless device (121) to receive DL signalling during the DL RS transmission; transmitting (504, 704), to the wireless device (121), scheduling information indicating DL resources on which the wireless device (121) is to receive the DL signalling, wherein the DL resources are time-wise partly overlapping with DL resources used for the DL RS transmission and complies with the transmitted capability information; and transmitting (505, 705) DL signalling on the indicated DL resources to the wireless device (121).
25. The method according to claim 24, wherein the capability information comprise one or more of: information indicating that the wireless device (121) is capable of receiving DL signalling during all or a subset of the DL RS transmission; information indicating that the wireless device (121) is capable of receiving a Radio Resource Control, RRC, configuration, wherein the RRC configuration indicates to the wireless device (121) that the DL signalling is able to be scheduled by the network node (110) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission; information indicating that the wireless device (121) is capable of providing scheduling information to the network node (110), wherein the scheduling information indicates to the network node (110) if, when and / or where the network node (110) is able to schedule DL signalling to the wireless device (121) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
26. The method according to claim 24 or 25, further comprisingtransmitting (502, 702), to the wireless device (121), configuration information associated with scheduling of DL signalling on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission.
27. The method according to claim 26, wherein the configuration information is transmitted via RRC signalling.
28. The method according to claim 26 or 27, wherein the configuration information indicates to the wireless device (121) that DL signalling is able to be scheduled by the network node (110) on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission.
29. The method according to any of claims 26-28, wherein the configuration information comprise one or more of: information indicating the DL RS transmission for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the indicated DL RS transmission; information indicating the Orthogonal Frequency-Division Multiplexing, OFDM, symbols of the DL RS transmission for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission; information indicating frequency band(s) or carrier(s) for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission; information indicating DL RS burst transmission for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS burst transmission.
30. The method according to any of claims 24-29, further comprising receiving (503, 703), from the wireless device (121), information confirming that DL signalling to the wireless device (121) is able to be scheduled by thenetwork node (110) on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission.
31. The method according to claim 30, wherein the confirmation information is received via Physical Uplink Control Channel, PUCCH, or Physical Uplink Shared Channel, PUSCH, signalling.
32. The method according to claim 30 or 31 , wherein the confirmation information comprise information indicating the DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission which the network node (110) is able to schedule DL signalling to the wireless device (121).
33. The method according to claim 32, wherein the indicated DL resources are associated with the OFDM symbols of the DL RS transmission indicated in the configuration information.
34. The method according to any of claims 24-33, wherein the DL RS transmission occur at frequencies above 6 GHz and are transmitted in the same carrier or in a carrier that belongs to the same intra-band carrier aggregation.
35. The method according to any of claims 24-34, wherein the DL signalling comprise DL data and the DL RS transmission are Synchronization Signal (SS) and Physical Broadcast Channel (PBCH) block (SSB) transmission.
36. A network node (110) for enabling reception of downlink, DL, signalling in a wireless device (121) during a DL Reference Signal, DL RS, transmission from the network node (110) in a wireless communications network (100), the network node (110) being configured to receive, from the wireless device (121), capability information of the wireless device (121) to receive DL signalling during the DL RS transmission, transmit, to the wireless device (121), scheduling information indicating DL resources on which the wireless device (121) is to receive the DL signalling, wherein the DL resources are time-wise partly overlapping with DL resources used for the DL RS transmission and complies with the transmitted capability information, and transmit DL signalling on the indicated DL resources to the wireless device (121).
37. The network node (110) according to claim 36, wherein the capability information comprise one or more of: information indicating that the wireless device (121) is capable of receiving DL signalling during all or a subset of the DL RS transmission; information indicating that the wireless device (121) is capable of receiving a Radio Resource Control, RRC, configuration, wherein the RRC configuration indicates to the wireless device (121) that the DL signalling is able to be scheduled by the network node (110) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission; information indicating that the wireless device (121) is capable of providing scheduling information to the network node (110), wherein the scheduling information indicates to the network node (110) if, when and / or where the network node (110) is able to schedule DL signalling to the wireless device (121) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission.
38. The network node (110) according to claim 36 or 37, further comprising transmitting (502, 702), to the wireless device (121), configuration information associated with scheduling of DL signalling on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission.
39. The network node (110) according to claim 38, wherein the configuration information is transmitted via RRC signalling.
40. The network node (110) according to claim 38 or 39, wherein the configuration information indicates to the wireless device (121) that DL signalling is able to be scheduled by the network node (110) on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission.
41. The network node (110) according to any of claims 38-40, wherein the configuration information comprise one or more of: information indicating the DL RS transmission for which the network node (110) is able to schedule DL signalling to the wireless device (122)on DL resources that are time-wise partly overlapping with the DL resources used for the indicated DL RS transmission; information indicating the Orthogonal Frequency-Division Multiplexing, OFDM, symbols of the DL RS transmission for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission; information indicating frequency band(s) or carrier(s) for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS transmission; information indicating DL RS burst transmission for which the network node (110) is able to schedule DL signalling to the wireless device (122) on DL resources that are time-wise partly overlapping with the DL resources used for the DL RS burst transmission.
42. The network node (110) according to any of claims 36-41 , further comprising receiving (503, 703), from the wireless device (121), information confirming that DL signalling to the wireless device (121) is able to be scheduled by the network node (110) on DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission.
43. The network node (110) according to claim 42, wherein the confirmation information is received via Physical Uplink Control Channel, PUCCH, or Physical Uplink Shared Channel, PUSCH, signalling.
44. The network node (110) according to claim 42 or 43, wherein the confirmation information comprise information indicating the DL resources that are time-wise partly overlapping with DL resources used for the DL RS transmission which the network node (110) is able to schedule DL signalling to the wireless device (121).
45. The network node (110) according to claim 44, wherein the indicated DL resources are associated with the OFDM symbols of the DL RS transmission indicated in the configuration information.
46. The network node (110) according to any of claims 36-45, comprising at least one processor (1210) and a memory (1220), wherein the memory (1220) is containing instructions executable by the at least one processor (1210).
47. A computer program, comprising instructions which, when executed on at least one processor (1110, 1210), cause the at least one processor (1110, 1210) to carry out the method according to any of claims 1-12 and 24-35.
48. A carrier containing the computer program according to claim 47, wherein the carrier is one of an electronic signal, optical signal, radio signal, or computer- readable storage medium.
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