Procedures for CORESET sharing

Abstract

A wireless communication network includes one or more first user equipment, UEs, and one or more second UEs. The wireless communication network configures the first UEs with one or more bandwidth parts, BWPs, and a set of control resource sets, CORESETs, within a BWP in a same slot, and the wireless communication network configures the second UEs with only a subset of the set of CORESETs.

Description

Technical Field

[0001] This invention relates to the field of wireless communication networks or systems, and more particularly, to wireless communication networks that configure user equipment or UEs using a control resource set (CORESET). Embodiments involve using the same CORESET structure for both conventional UEs and so-called degraded capability RedCap UEs. Background Technology

[0002] Figure 1 is a schematic representation of an example of a terrestrial wireless network 100, as shown in Figure 1(a), including a core network 102 and one or more radio access networks RAN1, RAN2, ... RAN N Figure 1(b) shows the Radio Access Network (RAN). N The example schematic representation may include one or more base stations gNB1 to gNB5, each base station serving a specific area around the base station schematically shown by corresponding cells 1061 to 1065. The base stations are provided to serve users within the cell. One or more base stations may serve users in licensed and / or unlicensed frequency bands. The term base station (BS) refers to gNB in ​​5G networks, eNB in ​​UMTS / LTE / LTE-A / LTE-APro, or simply BS in other mobile communication standards. Users may be fixed or mobile devices. The wireless communication system may also be accessed by mobile or fixed IoT devices connected to the base station or the user. Mobile devices or IoT devices may include physical devices such as robots or vehicles, ground-based vehicles, aircraft (such as manned or unmanned aerial vehicles (UAVs), the latter also known as drones), buildings, and other items or devices having embedded electronics, software, sensors, actuators, etc., and network connectivity enabling these devices to collect and exchange data over existing network infrastructure. Figure 1(b) shows an exemplary view with only five cells; however, RAN N It can include more or fewer such cells, and RAN NThis also includes a single base station. Figure 1(b) shows two user UEs, UE1 and UE2, located in cell 1062 and served by base station gNB2, also referred to as user equipment UEs. Another user UE3 is shown in cell 1064 served by base station gNB4. Arrows 1081, 1082, and 1083 schematically represent uplink / downlink connections used for transmitting data from users UE1, UE2, and UE3 to base stations gNB2 and gNB4, or for transmitting data from base stations gNB2 and gNB4 to users UE1, UE2, and UE3. This can be implemented on licensed and / or unlicensed frequency bands. Furthermore, Figure 1(b) shows two IoT devices, 1101 and 1102, in cell 1064, which can be fixed or mobile devices. IoT device 1101 accesses the wireless communication system via base station gNB4 to receive and transmit data, as schematically indicated by arrow 1121. IoT device 1102 accesses the wireless communication system via user UE3, as schematically indicated by arrow 1122. Each base station gNB1 to gNB5 can connect to the core network 102, for example via the S1 interface, through corresponding backhaul links 1141 to 1145, which are schematically represented in Figure 1(b) by arrows pointing to the "core". The core network 102 can connect to one or more external networks. External networks can be the Internet, or private networks such as intranets or any other type of campus network, such as private WiFi or 4G or 5G mobile communication systems. Furthermore, some or all of the base stations gNB1 to gNB5 can interconnect via their respective backhaul links 1161 to 1165, for example via the S1 or X2 interface or the XN interface in the NR, which are schematically represented in Figure 1(b) by arrows pointing to the "gNBs". The direct link channel allows direct communication between UEs, also known as device-to-device (D2D) communication. The direct link interface in 3GPP is designated PC5.

[0003] For data transmission, a physical resource grid can be used. A physical resource grid can include a set of resource elements mapped to various physical channels and physical signals. For example, physical channels can include physical downlink, uplink, and direct link shared channels PDSCH, PUSCH, and PSSCH carrying user-specific data (also known as downlink, uplink, and direct link load data); physical broadcast channels PBCH carrying, for example, Master Information Block (MIB) and System Information Block (SIB), one or more direct link information blocks (SLIB) (if supported); physical downlink, uplink, and direct link control channels PDCCH, PUCCH, and PSSCH carrying, for example, downlink control information DC1, uplink control information UCI, and direct link control information SCI; and physical direct link feedback channels PSFCH carrying PC5 feedback responses. Note that the direct link interface can support two levels of SCI. This refers to a first control region containing certain portions of the SCI, and an optional second control region containing a second portion of control information.

[0004] For the uplink, physical channels may also include physical random access channels (PRACH or RACH), which the UE uses to access the network when it synchronizes and obtains the MIB and SIB. Physical signals may include reference signals or symbols (RS), synchronization signals, etc. The resource grid may include frames or radio frames that have a certain duration in the time domain and a given bandwidth in the frequency domain. Frames may have a certain number of subframes of predefined length, such as 1 ms. Each subframe may include one or more time slots of 12 or 14 OFDM symbols, depending on the cyclic prefix (CP) length. Frames may also consist of a smaller number of OFDM symbols, for example, when utilizing a shorter transmission time interval (sTTI) or a small time slot / non-time slot-based frame structure that includes a small number of OFDM symbols.

[0005] The wireless communication system can be any single-tone or multi-carrier system using frequency division multiplexing, such as orthogonal frequency division multiplexing (OFDM), orthogonal frequency division multiple access (OFDMA), or any other IFFT-based signal with or without CP, such as DFT-s-OFDM. Other waveforms can be used, such as non-orthogonal waveforms for multiple access, such as filter bank multicarrier (FBMC), generalized frequency division multiplexing (GFDM), or universal filtered multicarrier (UFMC). The wireless communication system can operate, for example, according to the LTE-Advanced pro standard, or 5G, or NR (New Radio) standard, or NR-U (New Radio-Unlicensed) standard.

[0006] The wireless network or communication system depicted in Figure 1 can be a heterogeneous network with different overlapping networks, such as a macrocell network, where each macrocell includes a network of macro base stations such as gNB1 to gNB5 and small cell base stations such as femtocells or picocells (not shown in Figure 1). In addition to the terrestrial wireless networks described above, there are also non-terrestrial wireless communication networks (NTNs), including satellite transceivers and / or airborne transceivers such as unmanned aerial vehicle (UAV) systems. Non-terrestrial wireless communication networks or systems can operate in a manner similar to the terrestrial systems described above with reference to Figure 1, for example, according to the LTE-Advanced Pro standard or the 5G or NR (New Radio) standard.

[0007] In mobile communication networks, such as those described above with reference to Figure 1, such as LTE or 5G / NR networks, there may be UEs that communicate directly with each other via one or more direct link (SL) channels, for example, using PC5 / PC3 interfaces or WiFi Direct. UEs communicating directly with each other via direct links may include vehicles communicating directly with other vehicles (V2V communication) or vehicles communicating with other entities in the wireless communication network (V2X communication), such as roadside units (RSUs), roadside entities such as traffic lights, traffic signs, or pedestrians. An RSU may function as a BS or UE, depending on the specific network configuration. Other UEs may not be vehicle-related and may include any of the aforementioned devices. Such devices may also communicate directly with each other using SL channels, i.e., D2D communication.

[0008] In order to support multiple UE types (not all UE types can receive the full carrier bandwidth) and to reduce UE power consumption, mobile communication networks, such as the network described with reference to Figure 1, can configure UEs to use a so-called bandwidth portion. Figure 2 The concept of a bandwidth segment is schematically illustrated, with the total available bandwidth shown at 170, and two bandwidth segments 172a and 172b having bandwidths less than the total bandwidth 170. A BWP comprises a set of contiguous resource blocks within the entire bandwidth of the system, and each BWP is associated with specific quantization, such as the subcarrier spacing (SCS) and the corresponding cyclic prefix. A BWP can be equal to or greater than the size of a synchronization sequence block (SSB), also known as an SSB, and may or may not contain an SSB. When the UE is in connected mode with the gNB, the UE is configured with an active direct link BWP, identical to the single direct link BWP used for idle or out-of-coverage operation. In the direct link BWP configuration or pre-configuration, the subcarrier spacing used on the direct link is provided from the same set of values ​​used for the Uu interface and associated with frequency ranges, for example, 15, 30, or 60 kHz for FR1 and 60 or 120 kHz for FR2.

[0009] Within the BWP, physical resource sets are defined and used for control data, such as PDCCH. These resource sets are called control resource sets, CORESET. Within the BWP, RB sets and OFDM symbol sets define one or more configurable search spaces within a CORESET.

[0010] It should be noted that the information in the above sections is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art.

[0011] Based on the above, it may be necessary to improve or enhance user equipment using CORESET. Summary of the Invention

[0012] The present invention provides a wireless communication network in an embodiment of the first aspect.

[0013] In a second aspect, the present invention provides a user equipment (UE) for a wireless communication network.

[0014] In a third aspect, the present invention provides a wireless communication network.

[0015] In a fourth aspect, the present invention provides a user equipment (UE) for a wireless communication network.

[0016] In a fifth aspect, the present invention provides a user equipment (UE) for a wireless communication network.

[0017] In a sixth aspect, the present invention provides a wireless communication network.

[0018] In a seventh aspect, the present invention provides a wireless communication network.

[0019] An embodiment of the invention in the eighth aspect provides a method for operating a wireless communication network.

[0020] In a ninth aspect, the present invention provides a method for operating a user equipment (UE) in a wireless communication network.

[0021] In a tenth aspect, the present invention provides a method for operating a wireless communication network.

[0022] In an eleventh aspect, the present invention provides a method for operating a user equipment (UE) in a wireless communication network.

[0023] In a twelfth aspect embodiment of the present invention, a method for operating a user equipment (UE) of a wireless communication network is provided.

[0024] In a thirteenth aspect, the present invention provides a method for operating a wireless communication network.

[0025] In an embodiment of the fourteenth aspect, the present invention provides a non-transitory computer program product. Attached Figure Description

[0026] Embodiments of the present invention will now be described in further detail with reference to the accompanying drawings:

[0027] Figure 1 is a schematic representation of an example of a terrestrial wireless network, wherein Figure 1(a) shows a core network and one or more radio access networks, and Figure 1(b) shows a schematic representation of an example of a radio access network (RAN).

[0028] Figure 2 This schematically illustrates the concept of the bandwidth portion (BWP).

[0029] Figure 3 This is a schematic representation of a wireless communication system for implementing embodiments of the present invention, including a transmitter, such as a base station, one or more receivers, such as user equipment (UE), and one or more relay UEs;

[0030] Figure 4 An embodiment of the first aspect of the present invention is shown;

[0031] Figure 5 An embodiment of the second aspect of the present invention is shown;

[0032] Figure 6 shows an example of the frequencyDomainResourcesOffset field in PDCCH-Config IE;

[0033] Figure 7 shows an example of the DMRSOffset field in PDCCH-Config IE;

[0034] Figure 8 This shows an example of ControlResourceSetRedCapOffset in Internet Explorer;

[0035] Figure 9 This shows an example of a ControlResourceSet IE that includes the field noCCEcoreset;

[0036] Figure 10 illustrates an embodiment of optimized interleaving of PDCCH candidates for a first UE such as eMBB IE and PDCCH candidates for a second UE such as RedCap UE.

[0037] Figure 11 An embodiment of the third aspect of the present invention is shown;

[0038] Figure 12 An example of a specification describing timing offsets in DCI format for a UE-specific search space;

[0039] Figure 13 An embodiment of the fourth aspect of the invention is shown; and

[0040] Figure 14 An example of a computer system is shown on which the units or modules described in the method according to the invention and the steps of the method can be executed. Detailed Implementation

[0041] Embodiments of the invention will now be described in more detail with reference to the accompanying drawings, wherein the same or similar elements have the same assigned reference numerals.

[0042] In wireless communication networks, such as those described above with reference to FIG1, several types or categories of user equipment or UEs can be used. For example, there are so-called fully powered UEs that are powered by a permanent power source, such as vehicle-mounted UEs that draw power from a vehicle's battery. For such UEs, power consumption is not an issue. Other user equipment or UEs, such as handheld UEs, do not have a permanent power source and are battery-powered, therefore power consumption needs to be considered. Furthermore, there may be so-called RedCap user equipment or UEs, which have fewer capabilities compared to other UEs, such as enhanced mobile broadband (eMBB) UEs. Embodiments involving RedCap can also relate to power-saving UEs, which can, for example, temporarily adopt a low-bandwidth operating mode to conserve power, while operating at full bandwidth in other operating modes. The relevant capabilities may include the maximum bandwidth that the UE can support. For example, when operating in frequency range 1 (FR1), the UE can support a maximum bandwidth of 20 MHz, and when operating in frequency range 2 (FR2), the UE can support up to 100 MHz of bandwidth. Further requirements for RedCap UEs may include one or more of the following:

[0043] • Equipment complexity: Reduced cost and complexity compared to high-end eMBB and ultra-reliable low-latency communication URLLC equipment.

[0044] • Device size: For most use cases, a compact device design is not advisable.

[0045] • Deployment scenarios: Supports all FR1 / FR2 frequency bands for both Frequency Division Duplex (FDD) and Time Division Duplex (TDD).

[0046] RedCap UEs can also include industrial sensors or wearable devices that communicate directly with other UEs using SL communication. For example, wearable devices can use SL communication to communicate directly with vehicles or other wearable devices.

[0047] As described above, a mobile communication network, such as the one shown with reference to Figure 1, can use CORESET, and the corresponding UE operating in the network can be configured or pre-configured with CORESET. The CORESET configuration information element IE can be used to provide a set of resource blocks RB, which reside within the UE's BWP. One or more search spaces are also defined, which determine the frequency and number of PDCCH candidates for the CORESET in the CORESET resources to be monitored by the UE. The smallest resource unit of a CORESET is designated as a resource element group REG, spanning one resource block RB in the frequency domain and one OFDM symbol in the time domain. REGs can be bundled into so-called REG bundles of sizes 2, 3, or 6. When the interleaving option is used for a CORESET, the REG bundle is distributed across the entire CORESET. Furthermore, six REGs are bundled into a so-called control channel element CCE. Depending on the channel conditions, the transmitter, such as a gNB or UE transmitting to the receiving UE via a direct link, can encode the DCI or SCI using different code rates, i.e., different aggregation levels AL. Aggregation level AL-1 corresponds to one CCE, and aggregation level AL-8 corresponds to eight CCEs.

[0048] The PDCCH can be limited to a CORESET and transmitted using its own demodulation reference signal, and the CORESET DMRS sequence is generated as follows:

[0049] The UE assumes that the reference signal sequence r of OFDM symbol l l (m) is defined as

[0050]

[0051] The pseudo-random sequence c(i) is defined in Section 5.2.1. The pseudo-random sequence generator should be initialized with the following formula:

[0052]

[0053] Where l is the number of OFDM symbols in the time slot. It is the number of time slots within the frame, and

[0054] - If the higher-level parameter PDCCH-DMRS-ScramblingID is provided, N is given through the higher-level parameter PDCCH-DMRS-ScramblingID. ID ∈{0,1,...,65535},

[0055] -otherwise,

[0056] Based on the size of the BWP, as shown in the table below, the BWP can be divided into smaller sub-bands, which allows for sub-band-based processing or sub-band-based reporting.

[0057] <38.214-Table 5.2.1.4-2: Configurable Subband Size>

[0058] Bandwidth component (PRB) Subband size (PRB) <24 N / A 24-72 4,8 73-144 8,16 145-275 16,32

[0059] While the concepts of bandwidth portions and CORESETs described above work well for UEs capable of operating across the entire bandwidth of a bandwidth portion, other UEs, such as the RedCap UE mentioned above, may not have this capability, meaning they may be limited to operation within a certain maximum bandwidth range, for example, 20MHz in FR1 and up to 100MHz in FR2. This has implications for many procedures used by current UEs capable of operating across the entire bandwidth of a bandwidth portion, such as eMBB UEs. The problem with the conventional approach is that UEs that cannot operate across the entire bandwidth portion, such as RedCap UEs with limited bandwidth, do not support large CORESETs spanning bandwidths greater than the maximum bandwidth the UE can handle. Typically, this problem is addressed by scheduling specific or special CORESETs for RedCap UEs; however, this negatively impacts the scheduling flexibility of the base station or gNB because the number of CORESETs that must be scheduled increases, which can be particularly problematic for eMBB UEs.

[0060] This invention addresses this problem and provides methods for solving the above-mentioned problems and improving the scheduling flexibility of gNB from various aspects.

[0061] Embodiments of the present invention can be implemented in a wireless communication system including a base station and users such as mobile terminals or IoT devices, as shown in FIG1. Figure 3 This is a schematic representation of a wireless communication system including a transmitter 300, such as a base station, and one or more receivers 302, 304, such as user equipment (UE). The transmitter 300 and receivers 302, 304 can communicate via one or more wireless communication links or channels 306a, 306b, 308, such as radio links. The transmitter 300 may include one or more mutually coupled antennas ANT. T Alternatively, it may include an antenna array with multiple antenna elements, a signal processor 300a, and a transceiver 300b. Receivers 302 and 304 include one or more mutually coupled antennas ANT. UEAlternatively, it may include an antenna array with multiple antennas, signal processors 302a and 304a, and transceivers 302b and 304b. Base station 300 and UEs 302 and 304 can communicate via corresponding first wireless communication links 306a and 306b, such as radio links using the Uu interface, while UEs 302 and 304 can communicate with each other via a second wireless communication link 308, such as a radio link using the PC5 / direct link SL interface. When UEs are not served by the base station or are not connected to the base station, for example, when they are not in an RRC connection state, or more generally, when the base station does not provide SL resource allocation configuration or assistance, UEs may communicate with each other via the direct link SL. Figure 3 The system or network, Figure 3 One or more UE302, 304, and Figure 3 The base station 300 can be operated according to the invention described herein.

[0062] First aspect - Using CORESET's RedCap UE with non-RedCap UE

[0063] According to an embodiment of a first aspect of the present invention, a method is provided in which a first UE, such as an eMBBUE, is configured or pre-configured with a set or group of CORESETs in a BWP in the same time slot, while a second UE of a different type, such as a RedCapUE, is configured with only a subset of the CORESET set taken from the set of CORESETs associated with the first UE. Figure 4 An embodiment of the first aspect of the invention is illustrated, more specifically, comprising a wireless communication network including one or more first user equipment 400 or UE1 and one or more second user equipment 402 or UE2. Figure 4 In the middle, the right side schematically shows the channel bandwidth, and within the channel BW, the wireless communication network configures one or more BWPs for UE1. Figure 4 A single BWP is shown; however, according to other embodiments, multiple BWPs can be configured for UE1 within the channel bandwidth. Furthermore, within the BWP used for UE1, a set of CORESETs #1 to #3 is defined. UE1 is capable of at least... Figure 4 The user equipment shown operates across the entire bandwidth of the BWP, while UE2 can be a RedCap UE that can only operate within a frequency range or only support a maximum bandwidth smaller than the bandwidth of the BWP associated with UE1. In other words, compared to UE2, UE1 can operate within a frequency range larger than the frequency range supported by RedCap UE2 or support a maximum bandwidth larger than the maximum bandwidth supported by RedCap UE2.

[0064] According to a first aspect of the invention, in order to overcome the shortcomings of the conventional method described above, instead of defining a specific CORESET for RedCap UE2 in addition to the CORESET specified for UE1, a subset (e.g., one or more from that set, where the subset does not include at least one from the CORESET set) is selected from the plurality of CORESETs #1 to #3 defined for UE1 for UE2, as follows: Figure 4 CORESET#1 in the depicted embodiment. Therefore, Figure 4 An example using only one CORESET is shown; however, in the given example, a single distinct CORESET or a combination of any two CORESETs can also be used. Regarding CORESETs #1 through #3, CORESETs can be located at multiple different frequency positions. For example, a so-called basic CORESET, such as CORESET #1, can form the basis for other CORESETs (e.g., CORESET #2 and #3) that can be located in one or more subbands (e.g., multiple frequency positions). These other CORESETs can have the exact same structure as the basic CORESET, e.g., the same bandwidth and / or the same time symbols, etc. Furthermore, this set of CORESETs can be processed as a single CORESET by UE1. It is important to note that the positions of CORESETs relative to each other, i.e., their order or sequence and frequency intervals, can be symmetrically or asymmetrically adjacent to each other, such as configuring adjacent CORESETs for a UE, or spaced apart from each other; for example, different CORESETs for a single UE may exist between CORESETs for another UE.

[0065] eMBB UE1 operating in unlicensed or licensed frequency bands is configured with a set of CORESETs #1 to #3 within its BWP, while RedCap UE1 is configured with only one of the CORESETs #1 to #3. For example, the CORSET configuration for a first UE can configure a set of CORESETs within the same time slot in the BWP using the CORSET configuration for a basic CORESET (such as CORSET #1). Among other parameters, the CORSET configuration defines the bandwidth of the basic CORESET and parameters indicating multiple frequency monitoring locations (such as frequency bands) where the basic CORESET exists. Figure 4In this context, assume that two additional frequency monitoring locations leading to CORESET#2 and #3 are defined in the configuration. As discussed above, CORESET#2 and #3 can have the same structure as CORESET#1, which is the basic CORESET; that is, they can have the same width and / or height in the frequency domain and / or the same location in time. For example, they may differ only in their frequency locations. The second UE is capable of operating within the first frequency range or supporting a first maximum bandwidth equal to or greater than the bandwidth of the basic CORESET. For example, different UEs may consider different time instances, such as between the last location and the first location, and may use the same corresponding frequency locations. For example, the basic CORESET and multiple frequency locations may comprise a set of CORESETs.

[0066] In other words, to configure a set of cores within a BWP in the same time slot for UE1, the wireless communication network can provide a core configuration (CORSET) for the basic core. The core configuration defines the bandwidth of the basic core and parameters indicating the multiple frequency monitoring locations (such as frequencies, e.g., subbands or a set of subbands or frequency ranges) where the basic core exists. UE2 may be able to operate within a first frequency range or support a first maximum bandwidth, where the first frequency range or the first maximum bandwidth is equal to or greater than the bandwidth of the basic core and is at most a multiple of the frequency band, but less than the total number of frequency monitoring locations. Therefore, in the example, the RedCap UE can support the complete basic core but not multiple frequency monitoring locations.

[0067] Although only a single reduction category is mentioned, different subcategories of RedCap UEs can be implemented, resulting in different bandwidth capabilities. In an embodiment, the basic CORESET for RedCap UEs can be the least common denominator of all RedCap UEs, meaning it can be processed with all categories. In other words, a third UE with a smaller bandwidth than the second UE can be implemented. The network can configure the basic CORESET to fit the minimum bandwidth. The number of supported categories can also be greater than 3, for example, at least 4, at least 5, or higher. One or more third user equipment (UEs) can be able to operate in a third frequency range smaller than the first frequency range, or support a third maximum bandwidth smaller than the first bandwidth, wherein the third frequency range or the third maximum bandwidth is equal to or greater than the bandwidth of the basic CORESET, but not greater than the frequency band.

[0068] A UE can be configured with one or more cores. A UE configured with multiple cores at different frequency locations, such as a basic core and at least one additional core, can treat, evaluate, or consider this set of cores as a single combined core. In other words, the UE can combine or aggregate information obtained from a set or subset of cores.

[0069] According to the embodiment of the first aspect, when multiple RedCap UEs are provided, they can be configured with the same single CORESET, or Figure 4 The different CORESETs provided by UE1, other than the set of CORESETs #1 to #3.

[0070] A wireless communication network is provided according to an embodiment of the first aspect, comprising:

[0071] One or more first user equipment (UEs), and

[0072] One or more second user equipment (UE),

[0073] The wireless communication network configures one or more bandwidth portions (BWPs) and a set of control resources (CORESETs) within the same time slot for the first UE.

[0074] The wireless communication network is a subset of the CORESET set configured only by the second UE.

[0075] According to an embodiment of the first aspect, a wireless communication network is provided, wherein a set of CORESETs forms a combined CORESET.

[0076] According to an embodiment of the first aspect, a wireless communication network is provided, wherein the wireless communication network configures the same CORESET or different CORESETs for a plurality of second UEs.

[0077] A wireless communication network is provided according to an embodiment of the first aspect, wherein...

[0078] For the first UE, multiple control resource sets (CORESETs) within the same time slot's BWP are configured. The wireless communication network provides a CORSET configuration for the basic CORESET. The CORSET configuration defines the bandwidth of the basic CORESET and parameters indicating the multiple frequency monitoring locations, such as the frequency bands of the basic CORESET, for example, subbands.

[0079] The second UE is capable of operating within a first frequency range or supporting a first maximum bandwidth, wherein the first frequency range or the first maximum bandwidth is equal to or greater than the bandwidth of the basic CORESET and is at most a frequency band.

[0080] According to an embodiment of the first aspect, a wireless communication network is provided, wherein a basic CORESET and a plurality of frequency locations include a CORESET set.

[0081] According to an embodiment of the first aspect, a wireless communication network is provided, wherein one or more third user equipment (UE) devices are capable of operating in a third frequency range less than a first frequency range or supporting a third maximum bandwidth less than a first bandwidth, wherein the third frequency range or the third maximum bandwidth is equal to or greater than the bandwidth of a basic CORESET but not greater than the frequency band.

[0082] According to an embodiment of the first aspect, a wireless communication network is provided, wherein a first UE is capable of operating in a second frequency range or supporting a second maximum bandwidth, the second frequency range or the second maximum bandwidth being greater than a first frequency range or a first maximum bandwidth.

[0083] According to an embodiment of the first aspect, a user equipment (UE) for a wireless communication network is provided, wherein the wireless communication network provides one or more bandwidth portions (BWPs) and multiple control resource sets (CORESETs) within the BWPs.

[0084] The second UE is configured or pre-configured with only one of multiple CORESETs.

[0085] According to an embodiment of the first aspect, a user equipment is provided, wherein the UE is capable of operating or supporting a first maximum bandwidth within a first frequency range, the first frequency range or the first maximum bandwidth being less than a second frequency range or a second maximum bandwidth of one or more other UEs configured with a plurality of CORESETs within a BWP.

[0086] According to an embodiment of the first aspect, a method is provided for operating a wireless communication network including one or more first user equipment UEs and one or more second user equipment UEs, the method comprising:

[0087] Configure one or more bandwidth portion BWPs for the first UE, and a set of control resource sets (CORESETs) within the BWPs in the same time slot, and

[0088] Configure a subset of the CORESET set for the second UE.

[0089] According to an embodiment of the first aspect, a method for operating a user equipment (UE) of a wireless communication network is provided, wherein the wireless communication network provides one or more bandwidth portions (BWPs) and multiple control resource sets (CORESETs) within the BWPs, the method comprising:

[0090] Configure or pre-configure only one of multiple CORESETs for the UE.

[0091] Second aspect - CORESET shared / partial CORESET

[0092] According to an embodiment of the second aspect of the invention, CORESET can be shared between first-type UEs operating on a first bandwidth and by UEs operating on a second smaller bandwidth. Figure 5 An embodiment of the second aspect of the invention is shown in conjunction with the above reference. Figure 4 A similar explanation illustrates a wireless communication network and two types of UEs, namely UE1 and UE2. UE1 can be a first-type UE, such as an eMBB UE, operating within a first frequency range or supporting a first bandwidth, while UE2 can be a RedCap UE, operating only within a smaller bandwidth or a smaller frequency range. Again, it is assumed that the system or network has channel bandwidths defined for one or more BWPs used by UE1. Figure 5 and Figure 4 This example only shows a single BWP, but more than one BWP can be defined. Within the BWP, corresponding CORESET #1 and #2 are configured for UE1; however, more or fewer CORESETs can also be used. For example, see the reference above. Figure 4 The first UE is configured with CORESET #1 and #2 using a basic CORESET configuration existing at multiple frequency monitoring locations. Therefore, the first UE is configured to operate within a time symbol set, such as... Figure 5 The time slots shown contain a set of frequency resources that define the CORESET. For example... Figure 4 As shown, if multiple frequencies are used to monitor locations, the CORESET can be in the same column and of the same size. However, Figure 5 The scenario shown is achieved by configuring two different CORESETs (up to 4 or any other number).

[0093] To address the aforementioned problems arising from the conventional approach of using a CORESET specifically provided for UE2, an embodiment of the second aspect of the invention avoids such a specific CORESET. Instead, UE2 is configured in a time slot with a subset of the CORESET frequency resources provided for UE1, thereby defining a partial CORESET 404, in Figure 5 In the embodiment, CORESET 404 is part of CORESET #1 of UE1. In other words, according to the second aspect of the invention, UE2 is provided with a CORESET that is completely confined within the BWP of UE1, more specifically, within the CORESET of UE1. In other words, according to the embodiment of the second aspect of the invention, as Figure 5 RedCap UE such as UE2 and such Figure 5In this context, eMBB UEs such as UE1 share a CORESET, and therefore, RedCap UEs can be provided with a CORESET that is not entirely limited to their maximum operating bandwidth or BWP. Information about the structure of the CORESET can be provided to the RedCap UE, or in a further embodiment, information about the structure located within its CORESET can be provided only to it. According to embodiments, more than one RedCap UE can also be provided, and the same or different portions of the CORESET 404 can be defined for different RedCap UEs.

[0094] According to a further embodiment, UE2 can be provided with information about the overall structure of CORESET #1 and the frequency monitoring location of the portion of CORESET 404 used by UE2. For example, to configure a subset or portion of the CORESET for frequency resources for UE2, the wireless communication system can signal information describing the portion of the CORESET to UE2 by signaling all parameters of the CORESET and the location of the portion of the CORESET within the CORESET (e.g., by using an offset relative to the BWP of the first UE, or an offset relative to the start point of the CORESET). According to a further embodiment, UE2 is only provided with information about the actual structure of the portion of CORESET 404. For example, only the parameters of the portion of the CORESET and additional parameters necessary to derive the structure of the portion of the CORESET can be signaled, such as the offset of the first control channel element CCE and / or the DMRS offset of the portion of the CORESET, or the offset of the first RB of the portion of the CORESET.

[0095] Signaling for part of CORESET: CORESET offset

[0096] CORESET configuration can be provided through system information, such as in the case of a general CORESET, or through dedicated signaling, such as in the case of a UE-specific CORESET. According to an embodiment, a UE-specific CORESET is considered to be... Figure 5 The CORESET is shared between eMBB UE1 and RedCap UE2.

[0097] In the CORESET configuration, the frequency resources of the CORESET can be indicated, for example, by multiple bits, where each bit corresponds to six RBs forming an RB group, and the first RB group can be the first RB group within the CORESET. Typically, this can be indicated by the frequencyDomainResources field in an existing ControlResourceSet IE (e.g., IE PDCCH-Config). According to an embodiment of the second aspect of the invention, an additional field, such as the frequencyDomainResourcesOffset field, can be provided in the ControlResourceSet IE (e.g., IE PDCCH-Config) to indicate the offset 406 of the first RB of a portion of CORESET 404 relative to the first RB of CORESET#1, which provides a portion of CORESET 404, such as... Figure 5 As shown. Offset 406 can be indicated as the number of RBs or the number of RB groups.

[0098] Figure 6(a) shows an example of the frequencyDomainResourcesOffset field. Here, maxRBoffset RedCap This is the difference in the number of RBs or RB groups between the number of RBs / RB groups in the BWP where CORESET#n resides and the number of RBs / RB groups in the BWP of the RedCap UE. In other embodiments, the RBoffset in the existing ControlResourceSet IE can be used. RedCap This indicates the RB-level offset, in units of RBs or RB groups, from the first RB / group RB of the BWP containing CORESET#n to the first RB of the RedCap BWP. When RBoffset RedCap If the field does not exist, the UE can apply the value 0.

[0099] As shown in Figure 6(b), if the configuration also includes the field CORESETsharing RedCap Then the additional parameters or fields can exist conditionally, such as the CORESETsharing field. RedCap Indicates whether the cell is configured to share CORESET between RedCap UEs and non-RedCap UEs.

[0100] Partial CORESET signaling: DMRS offset

[0101] According to a further embodiment of the invention, UE2 is only provided with a partial configuration of CORESET 404, that is, the configuration only indicates a partial CORESET 404, without any additional information about the structure outside of the partial CORESET 404, i.e., UE2 has no knowledge about the bandwidth portion of UE1 or the CORESET#1 in which the partial CORESET 404 is arranged. The non-interleaved CORESET, the substructure in the partial CORESET 404 is equivalent to the structure of CORESET#1; however, it needs to be provided together with the CORESET to cause a DMRS mismatch in the demodulation of the PDCCH by UE1. Therefore, according to an embodiment of the second aspect of the invention, the DMRS offset can be signaled similarly to the CORESET offset described above, thereby enabling UE2 to reconstruct the portion of the DMRS falling into the partial CORESET 404. For example, the offset can be obtained using the conventional formula for generating the DMRS sequence shown above, where the starting subcarrier "m" is not the starting subcarrier of CORESET#1, but the first subcarrier of the partial CORESET 404.

[0102] According to embodiments of two aspects of the present invention, an additional field, such as a DMRSOffset field, can be provided in the ControlResourceSet IE (e.g., in IEPDCCH-Config). Figure 7(a) shows an example of the DMRSOffset field. Here, maxDMRSOffset indicates the maximum supported DMRS offset. In other embodiments, only the existing DMRSoffset in the ControlResourceSet IE can be used to indicate the m-offset. When DMRSoffset does not exist, the UE can apply a value of 0.

[0103] As shown in Figure 7(b), if the configuration also includes the field CORESETsharing RedCap Then the additional parameters or fields can exist conditionally, and this field CORESETsharing RedCap Indicates whether the cell is configured to share CORESET between RedCap UEs and non-RedCap UEs.

[0104] Partial CORESET signaling: CORESET offset information element

[0105] According to a further embodiment of the second aspect of the invention, an information element IE containing pairs (e.g., as a list) of CORESET IDs and corresponding offsets can be used. The offset can be either the aforementioned CORESET offset or the aforementioned DMRS offset.

[0106] Figure 8An example of the ControlResourceSetRedCapOffset IE, which can be used to signal the aforementioned CORESET offset and DMRS offset, is shown.

[0107] Processing of REG bundles located outside of part of the CORESET

[0108] According to an embodiment of the present invention, if the PDCCH candidate described by the search space configuration includes REG bundles that are entirely or partially located outside of part CORESET 404, then according to an embodiment of the second aspect of the present invention, UE2 may discard the PDCCH candidate or may attempt decoding without REG bundles outside of part BWP 404, for example, if the number of REG bundles in part CORESET 404 exceeds a predefined number or threshold.

[0109] Figure 9 An example of a ControlResourceSet IE is shown, which includes a field noCCEcoreset that defines the number of CCEs for a portion of the CORESET or the entire CORESET.

[0110] Search space limited to certain CORESETs

[0111] According to a further embodiment of the second aspect of the invention, for a non-interleaved CORESET, a hash function is selected for mapping PDCCH candidates such that the PDCCH candidates are located in a portion of CORESET 404. For example, the number of CCEs in the entire CORESET#1 can be set to the number of CCEs in a portion of CORESET 404. According to an embodiment, the CCE offset or the number of CCEs in a portion of CORESET can be signaled to ensure that the relevant CCEs are located within a portion of CORESET 404.

[0112] Partial CORESET interleaving function

[0113] According to a further embodiment of the second aspect of the invention, an optimized interleaver for one or more partial CORESETs is provided, which ensures that PDCCH candidates are always located within a partial CORESET while minimizing the impact on PDCCH candidates for the entire CORESET. Figure 10 illustrates an embodiment of optimized interleaving of PDCCH candidates for UE1 such as eMBB IE and PDCCH candidates for UE2 such as RedCap UE. Figure 10 assumes that AL-8 PDCCH candidates for UE1 and CCEs for the three PDCCH candidates for UE1 in the CORESET are shown in Figure 10. In Figure 10(a), it is further assumed that the first RedCap UE uses the first partial CORESET or sub-CORSET 4041, and the second RedCap UE, the third RedCap UE, and the fourth RedCap UE use the second partial CORESET or sub-CORSET 4042. Figure 10(a) assumes AL-4 PDCCH candidates for the first RedCap UE, AL-2 PDCCH candidates for the second RedCap UE, and AL-1 PDCCH candidates for the third and fourth RedCap UEs. Figure 10(b) shows the AL-8PDCCH candidate for the first RedCap UE.

[0114] The wireless communication network provides one or more first PDCCH candidates for UE1, and each first PDCCH candidate is transmitted on one or more control channel elements (CCEs) in the CORESET, as shown in Figure 10. Furthermore, one or more second PDCCH candidates are provided for one or more other UEs using a portion of the CORESET, such that the number of CCEs associated with different first PDCCH candidates is minimized for transmitting second PDCCH candidates in a portion of the CORESET. For example, in Figure 10(a), for the PDCCH candidates of the RedCap UE, only one PDCCH candidate's CCE (shown as a rectangle) of UE1 is used, while CCEs (shown as circles and diamonds) are not used. In Figure 10(b), for the AL-8 PDCCH candidates of the RedCap UE, two PDCCH candidates' CCEs (shown as rectangles and circles) of UE1 are used, while CCEs (shown as diamonds) are not used. Therefore, second PDCCH candidates can be provided such that for transmitting second PDCCH candidates in a portion of the CORESET, CCEs used for at least one of the first PDCCH candidates are not used for the second PDCCH candidates.

[0115] As shown in Figure 10(a), if the first aggregation level of the first PDCCH candidate is higher than the second aggregation level of the second PDCCH candidate, a second PDCCH candidate is provided such that for the transmission of the second PDCCH candidate in a portion of the CORESET, only one or more CCEs associated with one first PDCCH candidate are used. On the other hand, as shown in Figure 10(b), if the first aggregation level of the first PDCCH candidate is equal to the second aggregation level of the second PDCCH candidate, a second PDCCH candidate is provided such that for the transmission of the second PDCCH candidate in a portion of the CORESET, only one or more CCEs associated with both first PDCCH candidates are used.

[0116] According to an embodiment of the second aspect, a wireless communication network is provided, comprising:

[0117] One or more first user equipment (UEs), and

[0118] One or more second user equipment (UE),

[0119] The wireless communication network configures a set of frequency resources for the first UE in the time symbol set to define the control resource set CORESET, and

[0120] In this context, the wireless communication network configures a subset of frequency resources for the second UE in the time symbol set to define a portion of the CORESET.

[0121] According to an embodiment of the second aspect, a wireless communication network is provided, wherein the wireless communication network configures the same subset or different subsets of frequency resources for a plurality of second UEs.

[0122] According to an embodiment of the second aspect, a wireless communication network is provided, wherein in order to configure a subset of frequency resources for a second UE, the wireless communication system signals information from the description portion CORESET to the second UE by:

[0123] • Signal all parameters of the CORESET and the location of the portion of the CORESET within the CORESET, for example, by using an offset relative to the BWP of the second UE, or an offset relative to the start point of the CORESET, or

[0124] • Only signal the parameters of the partial CORESET and the additional parameters required to derive the structure of the partial CORESET, such as the offset of the first control channel element (CCE) of the partial CORESET, and / or the DMRS offset, and

[0125] / or the offset of the first RB of part of the CORESET.

[0126] According to an embodiment of the second aspect, a wireless communication network is provided, wherein, in order to configure a subset of frequency resources to a second UE, the wireless communication system signals a frequency offset parameter to the second UE, the frequency offset parameter indicating the offset of a first resource block RB of a portion of the CORESET relative to a first RB of the CORSET, for example as the number of RBs or RB groups.

[0127] According to an embodiment of the second aspect, a wireless communication network is provided, wherein, in order to configure a subset of frequency resources to a second UE, the wireless communication system signals the second UE to notify the demodulation reference signal DMRS offset, the DMRS offset enabling the second UE to reconstruct a portion of the DMRS falling within the CORESET.

[0128] According to an embodiment of the second aspect, a wireless communication network is provided, wherein, in order to configure a subset of frequency resources to a second UE, the wireless communication system sends an information element IE containing a CORESET ID and a corresponding offset to the second UE, the offset including a CORESET offset and / or a DMRS offset.

[0129] According to an embodiment of the second aspect, a wireless communication network is provided, wherein if a Physical Downlink Control Channel (PDCCH) candidate for a second UE contains one or more Resource Element Group (REG) bundles that are wholly or partially outside of a portion of the CORSET, the second UE...

[0130] • Discard PDCCH candidates, or

[0131] • If at least a certain number of REGs are completely in a portion of the CORESET, then attempt to decode without using REGs outside the portion of the CORESET.

[0132] According to an embodiment of the second aspect, a wireless communication network is provided, wherein the wireless communication network maps physical downlink control channel (PDCCH) candidates for a second UE using a hash function, such that the PDCCH candidates are located within a portion of the CORESET, for example, by setting a plurality of control channel elements (CCEs) of the CORESET as a plurality of CCEs of the portion of the CORESET.

[0133] According to an embodiment of the second aspect, a wireless communication network is provided, wherein the wireless communication network signals a CCE offset to ensure that the CCE associated with the PDCCH candidate of the second UE is located within a portion of the CORESET.

[0134] A wireless communication network is provided according to an embodiment of the second aspect, wherein the wireless communication network

[0135] • Provide one or more first PDCCH candidates for the first UE, each first PDCCH candidate will be transmitted on one or more control channel elements (CCEs) in the CORESET, and

[0136] • Provide one or more second PDCCH candidates for the second UE, such that the number of CCEs associated with different first PDCCH candidates is minimized when transmitting second PDCCH candidates in a portion of the CORESET.

[0137] According to an embodiment of the second aspect, a wireless communication network is provided, wherein the wireless communication network provides a second PDCCH candidate such that for the transmission of the second PDCCH candidate in a portion of the CORESET, a CCE for at least one of the first PDCCH candidates is not used for the second PDCCH candidate.

[0138] A wireless communication network is provided according to an embodiment of the second aspect, wherein...

[0139] If the number of first CCEs for a first PDCCH candidate in a portion of the CORESET is higher than the number of second CCEs required for a second PDCCH candidate, the wireless communication network provides a second PDCCH candidate such that, for transmitting a second PDCCH candidate in a portion of the CORESET, only one or more CCEs associated with a first PDCCH candidate are used, or

[0140] • If the number of first CCEs for the first PDCCH candidate within a portion of the CORESET is equal to the number of second CCEs required for the second PDCCH candidate, the wireless communication network provides the second PDCCH candidate such that for transmitting the second PDCCH candidate within the portion of the CORESET, only one or more CCEs associated with the two first PDCCH candidates are used.

[0141] According to an embodiment of the second aspect, a wireless communication network is provided, wherein a second UE is capable of operating or supporting a first maximum bandwidth within a first frequency range, and the first UE is capable of operating or supporting a second maximum bandwidth within a second frequency range, wherein the second frequency range or the second maximum bandwidth is greater than the first frequency range or the first maximum bandwidth.

[0142] According to an embodiment of the second aspect, a user equipment (UE) for a wireless communication network is provided, wherein the wireless communication network provides a set of frequency resources defining a control resource set (CORESET) in a time symbol set.

[0143] The UE is configured or pre-configured to have a subset of frequency resources in the time symbol set for defining a portion of the CORESET.

[0144] According to an embodiment of the second aspect, a user equipment is provided, wherein the UE is capable of operating or supporting a first maximum bandwidth within a first frequency range, the first frequency range or the first maximum bandwidth being less than a second frequency range or a second maximum bandwidth of one or more other UEs configured with a plurality of CORESETs within a BWP.

[0145] According to an embodiment of the second aspect, a method for operating a wireless communication network is provided, the wireless communication network including one or more first user equipment (UE) and one or more second user equipment (UE), the method comprising:

[0146] Configure a set of frequency resources for the first UE in the time symbol set to define the control resource set CORESET, and

[0147] Configure the second UE in the time symbol set as a subset of frequency resources for defining a portion of the CORESET.

[0148] According to an embodiment of the second aspect, a method for operating a user equipment (UE) of a wireless communication network is provided, wherein the wireless communication network provides a set of frequency resources defining a control resource set (CORESET) in a time symbol set, the method comprising:

[0149] Third aspect - PDCCH segmentation for reduced UE capabilities

[0150] According to an embodiment of the third aspect of the invention, a UE with reduced capabilities, or more generally operating over a limited frequency range or bandwidth, can be provided with fully encoded control messages, for example, at or above a predefined level such as AL-8 or higher in a DCI based on an aggregation level AL. While such encoded control messages span a bandwidth exceeding that of the UE2 capable of operating within, according to an embodiment of the third aspect of the invention, the control messages are segmented into two or more parts and transmitted at different times, such that once the last part is received, the reduced-capability UE can reassemble the partial messages into a complete control message.

[0151] Figure 11 An embodiment according to a third aspect of the invention is shown. For example... Figure 4 and Figure 5 As shown, the network is illustrated as including different types of UEs, namely UE1 400 and UE2 402. Similarly, it is assumed that UE1 operates on a first frequency range or bandwidth that is greater than the operating bandwidth of UE2; for example, UE2 may be a degraded UE. Channel bandwidth is indicated, where a bandwidth portion BWP is defined for UE1. In the described embodiment, the BWP includes a CORESET 410 that defines the timing of PDCCH monitoring. Figure 11In the code, the PDDCH monitoring timing is displayed as two instances in time: the first time #m and the second time #m+1. Within the CORESET, a search space is defined, and UE1 expects to find PDDCH candidates within this search space. For example, some CORESET404 (see...) Figure 5 This can be defined in search space SS#1. In Figure 11 In this embodiment, it is assumed that UE2 is some distance away from the transmitter (such as gNB or another UE communicating with UE2 via a direct link), so robust and reliable encoding is required, and therefore a higher aggregation level is used to encode control messages directed to UE2. Figure 11 An embodiment is shown in which the control message is encoded using AL-8. However, the bandwidth of UE2 is insufficient to transmit such a message. Therefore, the message is split into two parts, as shown in AL-4, and transmitted at timings #m and #m+1. After receiving the second part of the control message, UE2 combines the two parts into the complete control message AL-8. In a further embodiment, PDCCH monitoring timings #m and #m+1, as well as an optional additional #m+i, can be considered and / or processed as a single coupled monitoring timing #m. For example, the possibility of considering multiple CORESETs at different frequency locations as a combined CORESET can be effective for monitoring timings in the time domain.

[0152] In other words, such as Figure 11 As shown in the embodiment of the third aspect of the invention, certain larger aggregation levels, such as AL-8 or AL-16, can be segmented across PDCCH monitoring times because a RedCap UE, such as UE2, may not be able to handle these larger ALs or have sufficient bandwidth to receive them in a single PDCCH monitoring time. Therefore, the encoded control data is divided into two or more parts and distributed across multiple PDCCH monitoring times, which reduces the burden on UE2. Half of the AL-8 PDCCH is transmitted in the first time #m, and the second half is transmitted in the second time #m+1, to reduce the frequency range in which UE2 must receive the data. Nevertheless, UE2 still needs to decode the complete AL-8 message.

[0153] According to other embodiments, instead of segmenting the AL-8 message, the corresponding message encoded with AL-4 can be transmitted twice, instead of transmitting the AL-8 message once. In this scenario, UE2 can perform a chase-and-comb arrangement of the two parts, thus only needing to decode the AL-4 message and not the AL-8 message, thereby reducing processing workload.

[0154] According to an embodiment, UE2 can be configured to be represented as coupled different search spaces, such as Figure 11As shown in 412, for larger ALs, such as AL-8 or AL-16, UE2 can use portions from both search spaces SS#1 to combine information. According to other embodiments, search space offset 414 can be signaled, for example as part of the search space configuration, to indicate the location of the second portion of the PDCCH for the larger AL.

[0155] Typically, the reference time for certain control processes is defined by the time the control message is received, i.e., at timing #m. Based on this reference time, certain time intervals are defined, such as the minimum time interval K0 between the DCI and the associated PDSCH, or the minimum time interval K2 between the DCI and the associated PUSCH, or the time between the DCI and the PUCCH with the corresponding HARQ-ACK, i.e., the so-called PDCCH-to-HARQ timing. According to embodiments implementing control message segmentation, the reference time is no longer timing #m, but rather the last PDCCH monitoring timing that includes a portion of the control message, such as... Figure 11 The timing in #m+a.

[0156] According to an embodiment, the coupling monitoring timing may be applied only to larger ALs, such as ALs at or above a certain threshold, or to all ALs, regardless of whether they are segmented across monitoring timings.

[0157] Figure 12 Examples of the specifications for timing offsets in all DCI formats that require the use of higher aggregation levels 8 and 16 are depicted in bold. Offsets for AL8 and / or AL16 can be in symbols, slots, or subframes.

[0158] According to an embodiment of the third aspect, a user equipment (UE) for a wireless communication network is provided, wherein the wireless communication network provides a set of frequency and time resources defining monitoring timings such as PDCCH monitoring timings for transmitting one or more control messages such as DCI.

[0159] The UE receives control messages across multiple monitoring moments that are time-shifted. Each monitoring moment includes a portion of the control message, and

[0160] The UE combines parts of the received control messages into a complete control message.

[0161] According to an embodiment of the third aspect, a user equipment is provided, wherein the UE is configured or pre-configured with a plurality of search spaces indicated to be coupled, each of the coupled search spaces being associated with a monitoring timing that includes a portion of a control message.

[0162] According to an embodiment of the third aspect, a user equipment is provided, wherein the UE is configured or pre-configured with a search space configuration, the search space configuration including a time offset indicating the timing of a monitoring event in which a portion of a control message is located.

[0163] According to an embodiment of the third aspect, a user equipment is provided, wherein the monitoring timing is the physical downlink control channel (PDCCH) timing, and wherein a portion of the control message uses aggregation level coding.

[0164] According to an embodiment of the third aspect, a user equipment is provided in which the reference time for other control processes, such as the minimum time gap between DCI and PDSCH, or the minimum time gap between DCI and PUSCH, or the time between DCI and PUCCH with corresponding HARQ-ACK, is the last monitoring time containing a portion of the control message for all aggregation levels or for a subset of aggregation levels (e.g., those that only span multiple monitoring time segments) or for certain configured or pre-configured DCI formats or for certain search spaces (e.g., search spaces indicating multiple monitoring times).

[0165] According to an embodiment of the third aspect, a user equipment is provided, wherein the UE is capable of operating within a first frequency range or supporting a first maximum bandwidth, the first frequency range or the first maximum bandwidth being less than a second frequency range or a second maximum bandwidth of one or more other UEs operating in a wireless communication network.

[0166] According to an embodiment of the third aspect, a user equipment is provided in which multiple monitoring moments that are time-shifted are processed by the UE into a single monitoring moment.

[0167] According to an embodiment of the third aspect, a wireless communication network is provided, including one or more user equipment (UEs) of the third aspect.

[0168] According to an embodiment of the third aspect, a method for operating a user equipment (UE) of a wireless communication network is provided, wherein the wireless communication network provides a set of frequency and time resources defining monitoring timings for transmitting one or more control messages, such as DCI and PDCCH, the method comprising:

[0169] The UE receives control messages across multiple monitoring moments that are time-shifted. Each monitoring moment includes a portion of the control message, and

[0170] The UE combines parts of the received control messages into a complete control message.

[0171] Fourth aspect – Limited search space configuration for RedCap UE

[0172] According to an embodiment of the fourth aspect of the invention, for a UE with reduced capability, the position of the CORESET within a time slot can be such that the CORESET is located at a predefined set of time symbols within the time slot, for example, at the first few OFDM symbols of the time slot, or the time symbol sets of all CORESETs can be aligned, for example, all CORESETs can be located at the same set of time symbols within the time slot, i.e., the CORESET can be located at a configured or pre-configured set of time symbols within the time slot, wherein the time symbol set is equal across all CORESET configurations. Figure 13 An embodiment of the fourth aspect of the invention is shown, and more specifically, a wireless network and a UE operating according to this aspect. As shown, a UE 400 (a reduced-capability UE) is configured or pre-configured with a set of frequency resources spanning a frequency range equal to or less than the bandwidth on which the UE 400 can operate, and these frequency resources are defined in such a way that CORESET 416 is located at a set of predefined time symbols within a time slot, for example, at the first X symbols of the time slot, where X is greater than or equal to 1.

[0173] According to a fourth aspect of the invention, limiting the CORESET and search space flexibility by placing the CORESET at the aforementioned location within the time slot is advantageous because it allows for a reduction in the complexity of the UE 400. For example, conventionally, the CORESET can be located anywhere within the time slot; however, limiting the CORESET to, for example, the first three OFDM symbols of the time slot simplifies UE planning. Since the gap between DCI scheduling DL allocation or UL grant remains unchanged by limiting the CORESET timing, the UE 400 may not support small search space cycles, as this increases the UE's burden, requiring frequent monitoring of the PDCCH, resulting in a larger cycle according to the fourth aspect compared to other UEs operating in wider bandwidths, such as eMBB UEs. Therefore, according to an embodiment of the fourth aspect, to reduce the complexity of the UE 400, the time symbols within the time slot where the CORESET is located are limited to a subset of the total number of symbols within the time slot, such as the first X OFDM symbols of the time slot, where X is greater than or equal to 1 and less than the total number of symbols within the time slot. Furthermore, instead of providing a small monitoring cycle for the search space, a larger cycle is achieved for the UE 400. For example, according to an embodiment, existing Internet Explorers such as controlResourceSet and SearchSpace, as well as the duration field specified for a specific controlResourceSetId and monitoringSymbolsWithinSlot, can be used to specify the time symbol for application monitoring.

[0174] A wireless communication network is provided according to an embodiment of the fourth aspect, including:

[0175] One or more first user equipment (UEs), and

[0176] One or more second user equipment (UE),

[0177] The wireless communication network configures a set of frequency resources for the first UE, defining a first control resource set (CORESET), such that the first CORESET is located at any time symbol within a time slot.

[0178] The wireless communication network configures a set of frequency resources for the second control resource set CORESET for the second UE, such that the second CORESET is located at a predefined set of time symbols within a time slot, for example, at the first few OFDM symbols of the time slot, and / or at a set of configured or pre-configured time symbols within the time slot, wherein the set of time symbols is equal across all CORESET configurations.

[0179] According to an embodiment of the fourth aspect, a wireless communication network is provided, wherein the wireless communication network configures a search space with a first periodicity for a first UE in a first CORSET, and configures a search space with a second periodicity for a second UE in a second CORSET, wherein the minimum second periodicity is greater than the minimum first periodicity.

[0180] According to an embodiment of the fourth aspect, a wireless communication network is provided, wherein a second UE is capable of operating or supporting a first maximum bandwidth within a first frequency range, and the first UE is capable of operating or supporting a second maximum bandwidth within a second frequency range, wherein the second frequency range or the second maximum bandwidth is greater than the first frequency range or the first maximum bandwidth.

[0181] According to an embodiment of the fourth aspect, a method is provided for operating a wireless communication network including one or more first user equipment UEs and one or more second user equipment UEs, the method comprising:

[0182] Configure a set of frequency resources for the first UE, defining a first control resource set CORESET, such that the first CORESET is located at any set of time symbols within a time slot, and

[0183] Configure a set of frequency resources for a second control resource set CORESET for the second UE, such that the second CORESET is located at a set of predefined time symbols within a time slot, for example, at the first few OFDM symbols of the time slot, and / or at a set of configured or pre-configured time symbols within the time slot, wherein a set of time symbols is equal across all CORESET configurations.

[0184] In conjunction with each of the first to fourth aspects, the embodiments provide a wireless communication network, wherein the wireless communication network further includes one or more additional UEs or entities of an access network or core network of the wireless communication network.

[0185] In conjunction with each of the first to fourth aspects, the embodiments provide a wireless communication network in which the entities of the core network or access network include one or more of the following: macro cell base station, or small cell base station, or central unit of a base station, or distributed unit of a base station, or roadside unit (RSU), or AMF, or MME, or SMF, or core network entity, or mobile edge computing (MEC) entity, or network slice such as in NR or 5G core context, or any transmit / receive point (TRP) that enables an item or device to communicate using the wireless communication network, and the item or device is provided with network connectivity to communicate using the wireless communication network.

[0186] In conjunction with each of the first through fourth aspects, embodiments provide a user equipment (UE) wherein the user equipment includes one or more of the following: a power-limited UE; or a handheld UE, such as a UE used by pedestrians, and referred to as a vulnerable road user (VRU); or a pedestrian UE (P-UE); or a personal or handheld UE used by public safety personnel and emergency responders, and referred to as a public safety UE (PS-UE); or an IoT UE, for example, a sensor, actuator, or UE provided in a campus network that performs repetitive tasks and requests input from a gateway node at periodic intervals; or a mobile terminal; or a stationary terminal; or a cell IoT-UE; or a vehicle UE; or a vehicle group leader (GL) UE; or an IoT or narrowband IoT (NB-IoT) device; or a wearable device; a redcap device; or a ground-based vehicle; or an aircraft; or a drone; or a mobile base station; or a roadside unit (RSU); or a building; or any other item or device that provides network connectivity enabling the item / device to communicate using a wireless communication network, such as a sensor or actuator; or any other item or device with network connectivity enabling the item / device to communicate using a direct link of a wireless communication network, such as a sensor or actuator, or any network entity with direct link capability.

[0187] generally

[0188] Although relevant aspects and embodiments of the method of the present invention have been described separately, it should be noted that each aspect / embodiment may be independent of another aspect / embodiment, or some or all of the aspects / embodiments may be combined. Furthermore, the embodiments described subsequently can be used with each aspect / embodiment described so far.

[0189] According to embodiments, a wireless communication system may include a terrestrial network, or a non-terrestrial network, or a network or network segment that uses aircraft or space vehicles or a combination thereof as receivers.

[0190] According to embodiments of the present invention, a user equipment includes one or more of the following: a power-limited UE; or a handheld UE, such as a UE used by pedestrians, and referred to as a vulnerable road user (VRU); or a pedestrian UE (P-UE); or a personal or handheld UE used by public safety personnel and emergency responders, and referred to as a public safety UE (PS-UE); or an IoT UE, for example, a sensor, actuator, or UE provided in a campus network that performs repetitive tasks and requests input from a gateway node at periodic intervals; or a mobile terminal; or a stationary terminal; or a cell IoT-UE; or a vehicle UE; or a vehicle group leader (GL) UE; or a direct link relay; or an IoT or narrowband IoT (NB-IoT) device; or a wearable device, such as a smartwatch, or a fitness tracker, or smart glasses; or a ground-based vehicle; or an aircraft; or a drone; or a mobile base station; or a roadside unit (RSU); or a building; or any other item or device that provides network connectivity enabling the item / device to communicate using a wireless communication network, such as a sensor or actuator; or any other item or device with network connectivity enabling the item / device to communicate using a direct link of a wireless communication network, such as a sensor or actuator, or any network entity with direct link capability.

[0191] According to embodiments of the present invention, a network entity includes one or more of the following: a macro cell base station, or a small cell base station, or a central unit of a base station, or a distributed unit of a base station, or a roadside unit (RSU), or a remote radio head, or an AMF, or an MME, or an SMF, or a core network entity, or a mobile edge computing (MEC) entity, or a network slice such as in an NR or 5G core context, or any transmit / receive point (TRP) that enables an item or device to communicate using a wireless communication network, and the item or device is provided with network connectivity to communicate using a wireless communication network.

[0192] Embodiments of the present invention provide a computer program product including instructions that, when executed by a computer, cause the computer to perform one or more methods according to the present invention.

[0193] While some aspects of the concepts have been described in the context of the apparatus, it is clear that these aspects also represent a description of the corresponding method, where a block or device corresponds to a method step or feature of a method step. Similarly, aspects described in the context of method steps also represent a description of a corresponding block or item or feature of the corresponding apparatus.

[0194] Various elements and features of the present invention can be implemented in hardware using analog and / or digital circuitry, in software by executing instructions through one or more general-purpose or special-purpose processors, or as a combination of hardware and software. For example, embodiments of the present invention can be implemented in the environment of a computer system or another processing system. Figure 14 An example of a computer system 600 is shown. Units or modules, and the steps of methods performed by these units, can be executed on one or more computer systems 600. The computer system 600 includes one or more processors 602, such as dedicated or general-purpose digital signal processors. The processors 602 are connected to a communication infrastructure 604, such as a bus or network. The computer system 600 includes main memory 606, such as random access memory (RAM), and secondary memory 608, such as a hard disk drive and / or a removable storage drive. The secondary memory 608 allows computer programs or other instructions to be loaded into the computer system 600. The computer system 600 may further include a communication interface 610 to allow the transfer of software and data between the computer system 600 and external devices. Communication can be in the form of electronic, electromagnetic, optical, or other signals that can be processed by the communication interface. Communication can use wires or cables, optical fibers, telephone lines, cellular telephone links, RF links, and other communication channels 612.

[0195] The terms "computer program medium" and "computer-readable medium" are generally used to refer to tangible storage media, such as removable storage units or hard disks installed in hard disk drives. These computer program products are means of providing software to computer system 600. The computer program, also known as computer control logic, is stored in main memory 606 and / or auxiliary memory 608. The computer program may also be received via communication interface 610. When executed, the computer program causes computer system 600 to implement the invention. Specifically, when executed, the computer program enables processor 602 to implement the processes of the invention, such as any of the methods described herein. Thus, such a computer program can represent a controller of computer system 600. In the case of a software implementation of the disclosure, the software may be stored in a computer program product and loaded into computer system 600 using a removable storage drive or an interface (such as communication interface 610).

[0196] The hardware or software implementation can be executed using digital storage media, such as cloud storage, floppy disks, DVDs, Blu-rays, CDs, ROMs, PROMs, EPROMs, EEPROMs, or FLASH memories, which store electronically readable control signals that cooperate with or are capable of cooperating with a programmable computer system to execute corresponding methods. Therefore, the digital storage medium can be computer-readable.

[0197] Some embodiments of the invention include a data carrier having electronically readable control signals that are capable of cooperating with a programmable computer system to perform one of the methods described herein.

[0198] Typically, embodiments of the present invention can be implemented as a computer program product having program code that, when run on a computer, is operable to perform one of the methods. For example, the program code may be stored on a machine-readable medium.

[0199] Other embodiments include a computer program for performing one of the methods described herein, the computer program being stored on a machine-readable medium. In other words, therefore, embodiments of the methods of the present invention are computer programs having program code for performing one of the methods described herein when the computer program is run on a computer.

[0200] Therefore, a further embodiment of the method of the present invention is a data carrier, digital storage medium, or computer-readable medium including a computer program recorded thereon for performing one of the methods described herein. Therefore, a further embodiment of the method of the present invention represents a data stream or signal sequence for performing one of the methods described herein. For example, the data stream or signal sequence may be configured to be transmitted via a data communication connection, such as via the Internet. Further embodiments include processing means, such as a computer or programmable logic device, configured or adapted to perform one of the methods described herein. Further embodiments include a computer on which a computer program for performing one of the methods described herein is mounted.

[0201] In some embodiments, a programmable logic device, such as a field-programmable gate array (FPGA), may be used to perform some or all of the functions of the methods described herein. In some embodiments, the FPGA may cooperate with a microprocessor to perform one of the methods described herein. Generally, the methods are preferably performed by any hardware device.

[0202] The embodiments described above are merely illustrative of the principles of the invention. It will be understood that modifications and variations to the arrangements and details described herein will be apparent to those skilled in the art. Therefore, the intent is limited only by the scope of the appended patent claims, and not by the specific details presented through the description and explanation of the embodiments herein.

Claims

1. A user equipment (UE) of a wireless communication network, wherein the wireless communication network provides a set of frequency and time resources defining the timing of monitoring for transmitting one or more control messages, the UE comprising: One or more antennas, or an antenna array having multiple antennas. Signal processor, and transceiver The UE receives control messages across multiple monitoring moments that are offset in time, and each monitoring moment includes a portion of the control message. The UE combines parts of the received control messages into a complete control message. The control message is the DCI on the PDCCH, and the DCI is transmitted at each monitoring time across multiple monitoring times. Among them, the reference time for the minimum time gap between DCI and PDSCH or the reference time for the minimum time gap between DCI and PUSCH is the PDCCH monitoring time that includes the last transmission of DCI.

2. The user equipment (UE) as described in claim 1, wherein, The UE is configured or pre-configured with multiple search spaces that are indicated as coupled, each of which is associated with a monitoring event that includes a control message.

3. The user equipment (UE) as claimed in claim 1, wherein the UE is configured or pre-configured with a search space configuration, the search space configuration including a time offset indicating the timing of a monitoring event in which a portion of a control message is located.

4. The User Equipment (UE) as described in claim 1, wherein the monitoring timing is the Physical Downlink Control Channel (PDCCH) monitoring timing, and wherein a portion of the control message is encoded using the aggregation level.

5. The user equipment (UE) of claim 1, wherein the UE is capable of operating within a first frequency range or supporting a first maximum bandwidth, the first frequency range or the first maximum bandwidth being less than a second frequency range or a second maximum bandwidth of one or more other UEs operating in the wireless communication network.

6. The user equipment (UE) as claimed in claim 1, wherein multiple monitoring moments that are time-shifted are treated by the UE as a single monitoring moment.

7. A wireless communication network comprising one or more user equipment (UEs), wherein the UE includes: One or more antennas, or an antenna array having multiple antennas. Signal processor, and transceiver The UE receives control messages across multiple monitoring moments that are offset in time, and each monitoring moment includes a portion of the control message. The UE combines parts of the received control messages into a complete control message. The control message is the DCI on the PDCCH, and the DCI is transmitted at each monitoring time across multiple monitoring times. Among them, the reference time for the minimum time gap between DCI and PDSCH or the reference time for the minimum time gap between DCI and PUSCH is the PDCCH monitoring time that includes the last transmission of DCI.

8. The wireless communication network of claim 7, wherein the wireless communication network further includes one or more additional UEs or entities of the core network or access network of the wireless communication network.

9. A method for operating a user equipment (UE) of a wireless communication network, wherein the wireless communication network provides a set of frequency and time resources defining monitoring timing for transmitting one or more control messages, the method comprising: The UE receives control messages across multiple monitoring moments with time offsets. Each monitoring moment includes a portion of the control message. The UE combines the received control messages into a complete control message. The control message is the DCI on the PDCCH, and the DCI is transmitted at each monitoring time across multiple monitoring times. Among them, the reference time for the minimum time gap between DCI and PDSCH or the reference time for the minimum time gap between DCI and PUSCH is the PDCCH monitoring time that includes the last transmission of DCI.

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