Methods and apparatuses for cell supporting low power wake up signal (LP-WUS)
A CCO mechanism for LP-WUS/LP-SS in wireless networks addresses capacity and coverage issues by dynamically adjusting configurations across network elements, optimizing network deployment and reducing power consumption.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- LENOVO (BEIJING) LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-05-07
AI Technical Summary
Existing wireless communication systems face challenges in capacity and coverage optimization (CCO) issues related to low power wake up signals (LP-WUS) and low power synchronization signaling (LP-SS), particularly in non-CU-DU split and CU-DU split architectures, leading to partial coverage and increased power consumption.
Implement a CCO mechanism that includes network equipment (NE) to detect and mitigate CCO issues by exchanging information about LP-WUS or LP-SS issues and configurations across network elements, using Xn and F1 interfaces to update coverage configurations and adapt to neighboring cells, supporting different types of low power wake up radios (LP-WUR) and thresholds for entry and exit conditions.
Enhances capacity and coverage optimization by improving network deployment and reducing power consumption through dynamic adjustment of LP-WUS/LP-SS configurations, ensuring seamless transitions between coverage areas and minimizing signaling overhead.
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Figure CN2025106543_07052026_PF_FP_ABST
Abstract
Description
METHODS AND APPARATUSES FOR CELL SUPPORTING LOW POWER WAKE UP SIGNAL (LP-WUS)TECHNICAL FIELD
[0001] The present disclosure relates to methods and apparatuses for a cell supporting a low power wake up signal (LP-WUS) or a low power synchronization signaling (LP-SS) , and more specifically to methods and apparatuses for enhancements of capacity and coverage optimization (CCO) for a cell supporting LP-WUS or LP-SS.BACKGROUND
[0002] A wireless communications system may include one or multiple network communication devices, such as base stations, which may support wireless communications for one or multiple user communication devices, which may be otherwise known as user equipment (UE) , or other suitable terminology. The wireless communications system may support wireless communications with one or multiple user communication devices by utilizing resources of the wireless communication system (e.g. time-domain resources (e.g. symbols, slots, subframes, frames, or the like) or frequency-domain resources (e.g. subcarriers, carriers, or the like) . Additionally, the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g. sixth generation (6G) ) .SUMMARY
[0003] An article "a" before an element is unrestricted and understood to refer to "at least one" of those elements or "one or more" of those elements. The terms "a, " "at least one, " "one or more, " and "at least one of one or more" may be interchangeable. As used herein, including in the claims, "or" as used in a list of items (e.g. a list of items prefaced by a phrase such as "at least one of" or "one or more of" or "one or both of" ) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e. A and B and C) . Also, as used herein, the phrase "based on" shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as "based on condition A" may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" shall be construed in the same manner as the phrase "based at least in part on. Further, as used herein, including in the claims, a "set" may include one or more elements.
[0004] Some implementations of the present disclosure provide a network equipment (NE) for wireless communication. The NE includes at least one memory; and at least one processor coupled to the at least one memory and configured to cause the NE to: detect an occurrence of a first set of capacity and coverage optimization (CCO) issues associated with a low power wake up signal (LP-WUS) or a low power synchronization signaling (LP-SS) ; and send first information related to the first set of CCO issues to one or more neighbour NEs.
[0005] In some implementations of the NE described herein, the first information includes at least one of the following: information indicating whether the first set of CCO issues is at least one coverage issue or at least one capacity issue; cell global identifier (CGI) information of one or more cells in which the first set of CCO issues is detected; identifier (ID) information of one or more LP-WUSs in which the first set of CCO issues is detected; or ID information of one or more LP-SSs in which the first set of CCO issues is detected.
[0006] In some implementations of the NE described herein, after detecting the occurrence of the first set of CCO issues, the at least one processor is further configured to cause the NE to perform at least one of the following: update configuration information to solve the first set of CCO issues; or send the updated configuration information to the one or more neighbour NEs.
[0007] In some implementations of the NE described herein, to detect the occurrence of the first set of CCO issues, the at least one processor is further configured to cause the NE to: receive, from the one or more neighbour NEs, at least one of second information related to a second set of CCO issues detected by the one or more neighbour NEs or configuration information which is used to solve the second set of CCO issues; and detect the occurrence of the first set of CCO issues based on the at least one of the second information or the configuration information which is used to solve the second set of CCO issues.
[0008] In some implementations of the NE described herein, after detecting the occurrence of the first set of CCO issues, the at least one processor is further configured to cause the NE to perform at least one of the following: update configuration information to solve the first set of CCO issues, update configuration information to adapt to the second information, update configuration information to solve the second set of CCO issues; or send the updated configuration information to the one or more neighbour NEs.
[0009] In some implementations of the NE described herein, each of the NE and the one or more neighbour NEs is a base station (BS) or a central unit (CU) of the BS.
[0010] In some implementations of the NE described herein, if the NE is a central unit (CU) of a base station (BS) , the at least one processor is further configured to cause the CU of the BS to perform at least one of the following: send the first information to one or more distributed units (DUs) of the BS; or receive a modification configuration associated with the first set of CCO issues from the one or more DUs.
[0011] In some implementations of the NE described herein, the modification configuration associated with the first set of CCO issues includes at least one of the following: a set of modification cause values of the modification configuration; cell global identifier (CGI) information of one or more cells in which the first set of CCO issues is detected; a cell level coverage configuration used to solve the first set of CCO issues; identifier (ID) information of one or more LP-WUSs in which the first set of CCO issues is detected; an LP-WUS level coverage configuration used to solve the first set of CCO issues; ID information of one or more LP-SSs in which the first set of CCO issues is detected; or an LP-SS level coverage configuration used to solve the first set of CCO issues.
[0012] In some implementations of the NE described herein, if the NE is a central unit (CU) of a base station (BS) and if the one or more neighbour NEs are one or more CUs of one or more neighbour BSs, to detect the occurrence of the first set of CCO issues, the at least one processor is further configured to cause the CU of the BS to: receive, from the one or more CUs of the one or more neighbour BSs, at least one of second information related to a second set of CCO issues detected by the one or more CUs of the one or more neighbour BSs or configuration information which is used to solve the second set of CCO issues; and detect the occurrence of the first set of CCO issues based on the at least one of the second information or the configuration information which is used to solve the second set of CCO issues.
[0013] In some implementations of the NE described herein, the configuration information includes at least one of the following: a cell level coverage configuration; an LP-WUS level coverage configuration; or an LP-SS level coverage configuration.
[0014] In some implementations of the NE described herein, the second information includes at least one of the following: information indicating whether the second set of CCO issues is at least one coverage issue or at least one capacity issue; cell global identifier (CGI) information of one or more cells in which the second set of CCO issues is detected; identifier (ID) information of one or more LP-WUSs in which the second set of CCO issues is detected; or ID information of one or more LP-SSs in which the second set of CCO issues is detected.
[0015] In some implementations of the NE described herein, at least one of the first set of CCO issues or the second set of CCO issues includes at least one of the following: a cell level coverage issue related with LP-WUS or LP-SS; a reference signal level coverage issue related with LP-WUS or LP-SS; a synchronization signal level coverage issue related with LP-WUS or LP-SS; a cell level edge capacity issue related with LP-WUS or LP-SS; a reference signal level edge capacity issue related with LP-WUS or LP-SS; or a synchronization signal level edge capacity issue related with LP-WUS or LP-SS.
[0016] In some implementations of the NE described herein, after detecting the occurrence of the first set of CCO issues, the at least one processor is further configured to cause the CU of the BS to send at least one of the following to one or more distributed units (DUs) of the BS: the first information; the second information; or the configuration information which is used to solve the second set of CCO issues.
[0017] In some implementations of the NE described herein, the at least one processor is further configured to cause the CU of the BS to receive at least one of the following from the one or more DUs: a first set of modification cause values corresponding to the first set of CCO issues; cell global identifier (CGI) information of one or more cells in which the first set of CCO issues is detected; a cell level coverage configuration used to solve the first set of CCO issues; identifier (ID) information of one or more LP-WUSs in which the first set of CCO issues is detected; an LP-WUS level coverage configuration used to solve the first set of CCO issues; ID information of one or more LP-SSs in which the first set of CCO issues is detected; an LP-SS level coverage configuration used to solve the first set of CCO issues; a second set of modification cause values corresponding to the second set of CCO issues; CGI information of one or more cells in which the second set of CCO issues is detected; a cell level coverage configuration used to solve the second set of CCO issues; ID information of one or more LP-WUSs in which the second set of CCO issues is detected; an LP-WUS level coverage configuration used to solve the second set of CCO issues; ID information of one or more LP-SSs in which the second set of CCO issues is detected; or an LP-SS level coverage configuration used to solve the second set of CCO issues.
[0018] In some implementations of the NE described herein, the at least one processor is further configured to cause the CU of the BS to send configuration information including at least one of the following to the one or more CUs of the one or more neighbour BSs: the cell level coverage configuration used to solve the first set of CCO issues; the LP-WUS level coverage configuration used to solve the first set of CCO issues; the LP-SS level coverage configuration used to solve the first set of CCO issues; the cell level coverage configuration used to adapt to "the configuration information which is used to solve the second set of CCO issues" ; the LP-WUS level coverage configuration used to adapt to "the configuration information which is used to solve the second set of CCO issues" ; or the LP-SS level coverage configuration used to adapt to "the configuration information which is used to solve the second set of CCO issues" .
[0019] Some implementations of the present disclosure provide a processor for a network equipment (NE) for wireless communication, comprising at least one controller coupled with at least one memory and configured to cause the processor to: detect an occurrence of a first set of capacity and coverage optimization (CCO) issues associated with a low power wake up signal (LP-WUS) or a low power synchronization signaling (LP-SS) ; and send first information related to the first set of CCO issues to one or more neighbour NEs.
[0020] Some implementations of the present disclosure provide a method performed by a network equipment (NE) for wireless communication. The method includes: detecting an occurrence of a first set of capacity and coverage optimization (CCO) issues associated with a low power wake up signal (LP-WUS) or a low power synchronization signaling (LP-SS) ; and sending first information related to the first set of CCO issues to one or more neighbour NEs.BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 illustrates an example of a wireless communications system in accordance with aspects of the present disclosure.
[0022] Figure 2 illustrates an example of a user equipment (UE) 200 in accordance with aspects of the present disclosure.
[0023] Figure 3 illustrates an example of a processor 300 in accordance with aspects of the present disclosure.
[0024] Figure 4 illustrates an example of a network equipment (NE) 400 in accordance with aspects of the present disclosure.
[0025] Figure 5 illustrates a flowchart of a method performed by a NE in accordance with some aspects of the present disclosure.DETAILED DESCRIPTION
[0026] In general, in RRC_IDLE and RRC_INACTIVE states, a UE shall perform RRC_IDLE / INACTIVE mode procedures, which specify how the UE shall monitor paging, keep system information up to date, receive ETWS / CMAS information, and perform radio resource management (RRM) measurements and corresponding cell selection or re-selection to ensure that the UE is camping on the best cell. These procedures may need to be modified to accommodate operation using low power wake up signal (LP-WUS) or low power wake up radio (LP-WUR) .
[0027] Though the network may use different signals to page a UE for the case that the UE monitors LP-WUS and the case that the UE doesn't monitor LP-WUS, the network doesn't need to be aware of whether the UE is monitoring LP-WUS or not in RRC_IDLE or RRC_INACTIVE state. Otherwise, it requires the UE to switch on a main receiver (MR) or wake up the MR to inform the network whether the UE is monitoring LP-WUS or not, which leads to further signalling overhead, Uu resource consumption and also the UE's power consumption accordingly.
[0028] With LP-WUS or LP-WUR, an MR of a UE could enter ultra-deep sleep state, which denotes a state when the MR may sleep or turn off. Such ultra-deep sleep state could be entered when a predefined condition (e.g. quality of low power synchronizations signaling (LP-SS) and / or synchronization signal block (SSB) is better than the threshold) is fulfilled. The point with LP-WUS or LP-WUR is to reduce the UE's power consumption while maintaining some downlink monitoring functionality, and this is not possible if either the UE stops monitoring in downlink or if the UE does not detect that it has moved into a new cell or a new area and therefore apply the incorrect configuration for downlink monitoring. Therefore, it is feasible to introduce LP-WUS or LP-WUR as a power saving feature for RRC_IDLE and RRC_INACTIVE state, while ultra-deep sleep state as a power saving state for RRC_IDLE and RRC_INACTIVE state.
[0029] LP-WUS link performance is considerably worse than legacy physical channels (e.g. physical downlink control channel (PDCCH) or physical uplink share channel (PUSCH) ) , and there could be partial LP-WUS coverage in the cell. For the partial coverage case, a UE may need to keep track of whether it moves in and out of LP-WUS coverage in the cell, this to be able to fall back to monitoring paging using an MR of the UE when the coverage of LP-WUS is not sufficient. The UE could determine this based on the measured RSRP, e.g. compared to an RSRP threshold in system information.
[0030] For the partial coverage case, a UE's MR could stay in ultra-deep sleep power state only when UE is in the coverage of LP-WUS. When the UE moves out of the coverage of LP-WUS, the network cannot wake up the UE's MR via LP-WUS. Hence, the UE should start up its MR when it moves out of the coverage of LP-WUS to avoid missing the paging message. In this way, one of the exit conditions for using LP-WUS or ultra-deep sleep power state should be that the UE is out of LP-WUS coverage. A quality threshold of target reference signal (RS) can be pre-configured to the UE to define the exit condition for using LP-WUS. With this threshold, the UE can stop using LP-WUS and exit the ultra-deep sleep power state when the quality of the target RS is lower than the threshold.
[0031] During ultra-deep sleep or when using LP-WUS, the UE's MR may not perform measurement as per legacy procedures and requirements.
[0032] Similarly, the measurements and trigger conditions would need to be defined for using LP-WUS. One way is to define a quality threshold for the target RS measurement to determine the coverage. One entry condition for using LP-WUS could be configured to a UE based on this quality threshold. From the network's perspective, the threshold could be set based on the coverage of LP-WUS. With this threshold, LP-WUS could be used, and the UE's MR could enter the ultra-deep-sleep power state when the quality of the target RS is better than the threshold.
[0033] Before the entry condition is fulfilled, the UE should perform legacy measurement on serving cell based on legacy SSB, e.g. for cell (re) selection purpose. Hence, it is straightforward to use the legacy SSB as the target RS for pre-configured entry condition. That is, when the quality of the serving cell's SSB measured by the MR of the UE is better than a pre-configured threshold, the UE considers that the entry condition is fulfilled. Then, LP-WUS could be used and the MR could enter the ultra-deep-sleep power state for power saving.
[0034] Alternatively, LP-SS could be introduced for LR measurement, and the pre-condition could be also defined based on the measurement on LP-SS via LR. In this way, the target RS could be the LP-SS sent by the serving cell, i.e. when the quality of the LP-SS measured by an LR of the UE is better than a pre-configured threshold, a UE considers that the entry condition for using LP-WUS is fulfilled. The solution requires the UE to perform measurement on LP-SS via LR before using LP-WUS. In this way, the UE needs to turn on its LR before entering the ultra-deep-sleep power state, which may lead to extra power consumption, but it is not an issue because the power consumption of LR is very low.
[0035] With partial coverage, the most severe error case would be that the UE from inaccurate measurements incorrectly concludes that it is in LP-WUS coverage when it is not in LP-WUS coverage, and therefore the UE becomes unreachable in the downlink (i.e. the UE only monitors using LP-WUR but is outside LP-WUS coverage) .
[0036] In particular, the supported LR types are as below:-LRType#1: OOK-based LP-WUR measuring on LP-SS, e.g. with or without overlaid OFDM sequence.-LRType#2: OFDM-based LP-WUR measuring on LP-SS, e.g. with or without overlaid OFDM sequence.-LRType#3: OFDM-based LP-WUR measuring on SSB, and LP-SS with or without overlaid may also be measured.
[0037] Regarding LP-WUS monitoring, a baseline for entry condition for LP-WUS monitoring is: if the serving cell quality (e.g. reference signal received power (RSRP) , reference signal received quality (RSRQ) from MR) is above one or more thresholds (if configured) , a UE may start to monitor LP-WUS. LP-WUS monitoring entry condition can also include LR-based thresholds; and if the network configures one or more thresholds for both MR and LR measurements, the entry condition is met when all the measured results are above the configured one or more thresholds.
[0038] Regarding LP-WUS monitoring, a baseline for exit condition for LP-WUS monitoring is: if the serving cell measurement result based on LR is below one or more thresholds (if configured) , a UE may stop monitoring the LP-WUS.
[0039] Serving cell measurement offloading (i.e. serving cell measurement fully offloaded to LR and no serving cell measurement via MR is required) may be supported for LP-WUR or LR. The entry conditions for serving cell measurement offloading can be defined as at least "MR related is greater than a certain RSRP threshold, " and LR related could also be considered. For example, if an LR related threshold is configured, the entry condition is that both MR related and LR measurement are above the configured thresholds. The exit conditions for serving cell measurement offloading can be defined as that a serving cell measurement result based on LR is below a threshold (if configured) .
[0040] Regarding measurement relaxation, an entry condition for serving cell RRM relaxation is at least "if serving cell quality measured by MR is higher than relaxation threshold (e.g. RSRP and / or RSRQ) . " LR measurement could also be considered. For example, if an LR related threshold is configured, the entry condition is that both MR related and LR measurement are above the configured thresholds.
[0041] In the present disclosure, for the entry or exit conditions of LP-WUS monitoring, or serving cell measurement offloading, or RRM measurement relaxation: separate MR thresholds or LR thresholds can be configured for different types of LP WUR if a cell supports both types of LRs; and separate entry or exit thresholds can also be configured for OFDM-based and OOK-based WUR if a cell supports both types of LRs. The entry or exit thresholds for OFDM-based WUR measuring LP-SS only are the same as that for OOK-based WUR measuring LP-SS. The network is allowed to provide either OOK based threshold or OFDM based WUR measuring SSB threshold or both.
[0042] The metrics for serving cell quality measured by MR or LR for LP-WUS monitoring or for RRM measurement offloading or relaxation criteria include signal to interference plus noise ratio (SINR) , RSRP, RSRQ, received signal strength indicator (RSSI) , a measurement metric associated with LP-WUR measuring on LP-SS, and / or a measurement metric associated with LP-WUR measuring on SSB.
[0043] In general, the objective of new radio (NR) capacity and coverage optimization (CCO) function is to detect and mitigate coverage and cell edge interference issues. CCO is used for dynamic coverage changes with an index-based solution for coverage switching among deployment options.
[0044] Each next generation-radio access network (NG-RAN) node may be configured with alternative coverage configurations by an operation administration and maintenance (OAM) . The alternative coverage configurations contain relevant radio parameters and may also include a range for how each parameter is allowed to be adjusted.
[0045] A NG-RAN node may autonomously adjust within and switch between coverage configurations. When a change is executed, a NG-RAN node may notify its neighbour NG-RAN nodes using the NG-RAN NODE CONFIGURATION UPDATE message with the list of cells and SSBs with modified coverage included. The list contains the CGI of each modified cell with its coverage state indicator and optionally the SSB index of each modified SSB with its coverage state indicator.
[0046] The indicator may be used at the receiving NG-RAN node to adjust the functions of the mobility robustness optimisation (MRO) , e.g. by using the indicator to retrieve a previously stored MRO state. The indicator may also be used at the receiving NG-RAN node to adopt CCO configurations matching with neighbouring cells configurations.
[0047] If the list includes an indication about planned reconfiguration and possibly a list of replacing cells, the receiving NG-RAN node may use this to avoid connection or re-establishment failures during the reconfiguration. Also, if the sending NG-RAN node adds cells in inactive state, the receiving NG-RAN node may use this information to avoid connection or re-establishment failures. The receiving NG-RAN node may also use the notification to reduce the impact on mobility. The receiving NG-RAN node should avoid triggering handovers towards cell (s) that are indicated to be inactive.
[0048] Currently, a low power wake up signal (LP-WUS) and a low power wake up radio (LP-WUR) are supported for NR. Since LP-WUS or LP-SS link performance is considerably worse than legacy physical channels (e.g. physical downlink control channel (PDCCH) or physical uplink share channel (PUSCH) ) , there could be partial LP-WUS or LP-SS coverage in the cell. For the deployment that LP-WUS or LP-SS coverage is smaller than cell coverage, a UE should only monitor LP-WUS or LP-SS when it’s in LP-WUS or LP-SS coverage. The coverage of LP-WUS or LP-SS is an important aspect, and the UE may need to keep track of whether it moves in and out of LP-WUS or LP-SS coverage in the cell, in order to fall back to performing monitoring using the main receiver when the coverage of LP-WUS or LP-SS is not sufficient.
[0049] With the introduction of LP-WUS / LP-WUR, a CCO mechanism has not been studied. The present disclosure introduces a CCO mechanism for a cell supporting LP-WUS or LP-SS for a radio access network (RAN) . A CCO mechanism is used at network side to detect and mitigate coverage and cell edge interference issues. In some aspects, embodiments of the present disclosure aim to resolve the following issues, to improve network deployment:-Issue 1: in a non CU-DU split architecture, how to support a CCO mechanism for a cell supporting LP-WUS or LP-SS?-Issue 2: in a CU-DU split architecture, what is a CCO mechanism for a cell supporting LP-WUS or LP-SS?
[0050] For example, some embodiments of the present disclosure provide Xn interface enhancements to support a CCO mechanism for one or more cells supporting LP-WUS or LP-SS. In some embodiments of the present disclosure, a NG-RAN node (e.g. NG-RAN node 1) may detect one or more LP-WUS or LP-SS specific CCO issues. The detected one or more LP-WUS or LP-SS specific CCO issues may be a cell level coverage issue or a reference signal level coverage issue or a synchronization signal level coverage issue that is related with LP-WUS or LP-SS, or a cell level edge capacity issue or a reference signal level edge capacity issue or a synchronization signal level edge capacity issue that is related with LP-WUS or LP-SS. Then, the NG-RAN node may send LP-WUS or LP-SS specific information (e.g. the detected one or more LP-WUS or LP-SS specific CCO issues, and / or corresponding coverage configurations to solve the detected specific CCO issues) to one or more neighbour NG-RAN nodes. The one or more neighbour NG-RAN nodes (e.g. NG-RAN node 2) may understand the received LP-WUS or LP-SS specific information, and may update its cell or LP-WUS or LP-SS deployment configurations (e.g. a cell level coverage state, a coverage state related with LP-WUS, and / or a coverage state related with LP-SS) , in order to match with or adapt to the cell or LP-WUS or LP-SS deployment configurations modified by the NG-RAN node (e.g. NG-RAN node 1) .
[0051] Some embodiments of the present disclosure provide F1 interface enhancements to support a CCO mechanism for one or more cells supporting LP-WUS or LP-SS. In some embodiments of the present disclosure, a CU (e.g. CU1) of a NG-RAN node detects one or more LP-WUS or LP-SS specific CCO issues, and sends information of the detected one or more LP-WUS or LP-SS specific CCO issues to one or more DUs of the NG-RAN node that are managed by the CU of the NG-RAN node. The one or more specific CCO issues may be a cell level coverage issue or a reference signal level coverage issue or a synchronization signal level coverage issue that is related with LP-WUS or LP-SS, or a cell level edge capacity issue or a reference signal level edge capacity issue or a synchronization signal level edge capacity issue that is related with LP-WUS or LP-SS.
[0052] Then, one or more DUs (e.g. DU1) of the NG-RAN node may update corresponding coverage configurations to solve the specific CCO issues detected by its CU (e.g. CU1) . Then, the one or more DUs (e.g. DU1) of the NG-RAN node may send the corresponding coverage configurations used to solve the detected specific CCO issues to its CU (e.g. CU1) .
[0053] In these embodiments, the CU of the NG-RAN node (e.g. CU1) may send LP-WUS or LP-SS specific information (e.g. the detected one or more LP-WUS or LP-SS specific CCO issues, and / or corresponding coverage configurations which is used to solve the detected specific CCO issues) to one or more neighbour NG-RAN nodes (e.g. a CU of NG-RAN node 2 (e.g. CU2) ) . A CU of a neighbour NG-RAN node (e.g. CU2 of NG-RAN node 2) may send "the received LP-WUS or LP-SS specific information of the one or more LP-WUS or LP-SS specific CCO issues that are detected in the CU of the NG-RAN node (e.g. CU1 of NG-RAN node 1) " and "information of one or more LP-WUS or LP-SS specific CCO issues that are detected in the CU of the neighbour NG-RAN node (e.g. CU2 of NG-RAN node 2) " to its one or more DUs (e.g. DU2 of NG-RAN node 2) . One or more DUs of NG-RAN node 2 (e.g. DU2) may generate coverage configurations to adapt to the one or more LP-WUS or LP-SS specific CCO issues detected in NG-RAN node 1, or to solve the one or more LP-WUS or LP-SS specific CCO issues detected in NG-RAN node 2. Then, the one or more DUs (e.g. DU2) of NG-RAN node 2 may send the generated coverage configurations to the CU of NG-RAN node 2 (e.g. CU2) .
[0054] More details of the embodiments of the present disclosure will be illustrated in the following text in combination with the appended drawings.
[0055] Figure 1 illustrates an example of a wireless communications system 100 in accordance with aspects of the present disclosure. The wireless communications system 100 may include one or more NE 102, one or more UE 104, and a core network (CN) 106. The wireless communications system 100 may support various radio access technologies. In some implementations, the wireless communications system 100 may be a 4G network, such as an LTE network or an LTE-Advanced (LTE-A) network. In some other implementations, the wireless communications system 100 may be a NR network, such as a 5G network, a 5G-Advanced (5G-A) network, or a 5G ultrawideband (5G-UWB) network. In other implementations, the wireless communications system 100 may be a combination of a 4G network and a 5G network, or other suitable radio access technology including Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20. The wireless communications system 100 may support radio access technologies beyond 5G, for example, 6G. Additionally, the wireless communications system 100 may support technologies, such as time division multiple access (TDMA) , frequency division multiple access (FDMA) , or code division multiple access (CDMA) , etc.
[0056] The one or more NE 102 may be dispersed throughout a geographic region to form the wireless communications system 100. One or more of the NE 102 described herein may be or include or may be referred to as a network node, a base station, a network element, a network function, a network entity, a radio access network (RAN) , a NodeB, an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. An NE 102 and a UE 104 may communicate via a communication link, which may be a wireless or wired connection. For example, an NE 102 and a UE 104 may perform wireless communication (e.g. receive signaling, transmit signaling) over a Uu interface.
[0057] An NE 102 may provide a geographic coverage area for which the NE 102 may support services for one or more UEs 104 within the geographic coverage area. For example, an NE 102 and a UE 104 may support wireless communication of signals related to services (e.g. voice, video, packet data, messaging, broadcast, etc. ) according to one or multiple radio access technologies. In some implementations, an NE 102 may be moveable, for example, a satellite associated with a non-terrestrial network (NTN) . In some implementations, different geographic coverage areas associated with the same or different radio access technologies may overlap, but the different geographic coverage areas may be associated with different NE 102.
[0058] The one or more UE 104 may be dispersed throughout a geographic region of the wireless communications system 100. A UE 104 may include or may be referred to as a remote unit, a mobile device, a wireless device, a remote device, a subscriber device, a transmitter device, a receiver device, or some other suitable terminology. In some implementations, the UE 104 may be referred to as a unit, a station, a terminal, or a client, among other examples. Additionally, or alternatively, the UE 104 may be referred to as an Internet-of-Things (IoT) device, an Internet-of-Everything (IoE) device, or machine-type communication (MTC) device, among other examples.
[0059] A UE 104 may be able to support wireless communication directly with other UEs 104 over a communication link. For example, a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link. In some implementations, such as vehicle-to-vehicle (V2V) deployments, vehicle-to-everything (V2X) deployments, or cellular-V2X deployments, the communication link may be referred to as a sidelink. For example, a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.
[0060] An NE 102 may support communications with the CN 106, or with another NE 102, or both. For example, an NE 102 may interface with other NE 102 or the CN 106 through one or more backhaul links (e.g. S1, N2, or network interface) . In some implementations, the NE 102 may communicate with each other directly. In some other implementations, the NE 102 may communicate with each other or indirectly, e.g. via the CN 106. In some implementations, one or more NE 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC) . An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs) .
[0061] The CN 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions. The CN 106 may be an evolved packet core (EPC) , or a 5G core (5GC) , which may include a control plane entity that manages access and mobility (e.g. a mobility management entity (MME) , an access and mobility management functions (AMF) ) and a user plane entity that routes packets or interconnects to external networks (e.g. a serving gateway (S-GW) , a Packet Data Network (PDN) gateway (P-GW) , or a user plane function (UPF) ) . In some implementations, the control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g. data bearers, signal bearers, etc. ) for the one or more UEs 104 served by the one or more NE 102 associated with the CN 106.
[0062] The CN 106 may communicate with a packet data network over one or more backhaul links (e.g. via an S1, N2, or another network interface) . The packet data network may include an application server. In some implementations, one or more UEs 104 may communicate with the application server. A UE 104 may establish a session (e.g. a protocol data unit (PDU) session, or the like) with the CN 106 via an NE 102. The CN 106 may route traffic (e.g. control information, data, and the like) between the UE 104 and the application server using the established session (e.g. the established PDU session) . The PDU session may be an example of a logical connection between the UE 104 and the CN 106 (e.g. one or more network functions of the CN 106) .
[0063] In the wireless communications system 100, the NEs 102 and the UEs 104 may use resources of the wireless communications system 100 (e.g. time resources (e.g. symbols, slots, subframes, frames, or the like) or frequency resources (e.g. subcarriers, carriers) ) to perform various operations (e.g. wireless communications) . In some implementations, the NEs 102 and the UEs 104 may support different resource structures. For example, the NEs 102 and the UEs 104 may support different frame structures. In some implementations, such as in 4G, the NEs 102 and the UEs 104 may support a single frame structure. In some other implementations, such as in 5G and among other suitable radio access technologies, the NEs 102 and the UEs 104 may support various frame structures (i.e. multiple frame structures) . The NEs 102 and the UEs 104 may support various frame structures based on one or more numerologies.
[0064] One or more numerologies may be supported in the wireless communications system 100, and a numerology may include a subcarrier spacing and a cyclic prefix. A first numerology (e.g. μ=0) may be associated with a first subcarrier spacing (e.g. 15 kHz) and a normal cyclic prefix. In some implementations, the first numerology (e.g. μ=0) associated with the first subcarrier spacing (e.g. 15 kHz) may utilize one slot per subframe. A second numerology (e.g. μ=1) may be associated with a second subcarrier spacing (e.g. 30 kHz) and a normal cyclic prefix. A third numerology (e.g. μ=2) may be associated with a third subcarrier spacing (e.g. 60 kHz) and a normal cyclic prefix or an extended cyclic prefix. A fourth numerology (e.g. μ=3) may be associated with a fourth subcarrier spacing (e.g. 120 kHz) and a normal cyclic prefix. A fifth numerology (e.g. μ=4) may be associated with a fifth subcarrier spacing (e.g. 240 kHz) and a normal cyclic prefix.
[0065] A time interval of a resource (e.g. a communication resource) may be organized according to frames (also referred to as radio frames) . Each frame may have a duration, for example, a 10 millisecond (ms) duration. In some implementations, each frame may include multiple subframes. For example, each frame may include 10 subframes, and each subframe may have a duration, for example, a 1 ms duration. In some implementations, each frame may have the same duration. In some implementations, each subframe of a frame may have the same duration.
[0066] Additionally or alternatively, a time interval of a resource (e.g. a communication resource) may be organized according to slots. For example, a subframe may include a number (e.g. quantity) of slots. The number of slots in each subframe may also depend on the one or more numerologies supported in the wireless communications system 100. For instance, the first, second, third, fourth, and fifth numerologies (i.e. μ=0, μ=1, μ=2, μ=3, μ=4) associated with respective subcarrier spacings of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz may utilize a single slot per subframe, two slots per subframe, four slots per subframe, eight slots per subframe, and 16 slots per subframe, respectively. Each slot may include a number (e.g. quantity) of symbols (e.g. OFDM symbols) . In some implementations, the number (e.g. quantity) of slots for a subframe may depend on a numerology. For a normal cyclic prefix, a slot may include 14 symbols. For an extended cyclic prefix (e.g. applicable for 60 kHz subcarrier spacing) , a slot may include 12 symbols. The relationship between the number of symbols per slot, the number of slots per subframe, and the number of slots per frame for a normal cyclic prefix and an extended cyclic prefix may depend on a numerology. It should be understood that reference to a first numerology (e.g. μ=0) associated with a first subcarrier spacing (e.g. 15 kHz) may be used interchangeably between subframes and slots.
[0067] In the wireless communications system 100, an electromagnetic (EM) spectrum may be split, based on frequency or wavelength, into various classes, frequency bands, frequency channels, etc. By way of example, the wireless communications system 100 may support one or multiple operating frequency bands, such as frequency range designations FR1 (410 MHz –7.125 GHz) , FR2 (24.25 GHz –52.6 GHz) , FR3 (7.125 GHz –24.25 GHz) , FR4 (52.6 GHz –114.25 GHz) , FR4a or FR4-1 (52.6 GHz –71 GHz) , and FR5 (114.25 GHz –300 GHz) . In some implementations, the NEs 102 and the UEs 104 may perform wireless communications over one or more of the operating frequency bands. In some implementations, FR1 may be used by the NEs 102 and the UEs 104, among other equipment or devices for cellular communications traffic (e.g. control information, data) . In some implementations, FR2 may be used by the NEs 102 and the UEs 104, among other equipment or devices for short-range, high data rate capabilities.
[0068] FR1 may be associated with one or multiple numerologies (e.g. at least three numerologies) . For example, FR1 may be associated with a first numerology (e.g. μ=0) , which includes 15 kHz subcarrier spacing; a second numerology (e.g. μ=1) , which includes 30 kHz subcarrier spacing; and a third numerology (e.g. μ=2) , which includes 60 kHz subcarrier spacing. FR2 may be associated with one or multiple numerologies (e.g. at least 2 numerologies) . For example, FR2 may be associated with a third numerology (e.g. μ=2) , which includes 60 kHz subcarrier spacing; and a fourth numerology (e.g. μ=3) , which includes 120 kHz subcarrier spacing.
[0069] Figure 2 illustrates an example of a UE 200 in accordance with aspects of the present disclosure. The UE 200 may include a processor 202, a memory 204, a controller 206, and a transceiver 208. The processor 202, the memory 204, the controller 206, or the transceiver 208, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. These components may be coupled (e.g. operatively, communicatively, functionally, electronically, electrically) via one or more interfaces.
[0070] The processor 202, the memory 204, the controller 206, or the transceiver 208, or various combinations or components thereof may be implemented in hardware (e.g. circuitry) . The hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , or other programmable logic device, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure.
[0071] The processor 202 may include an intelligent hardware device (e.g. a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, or any combination thereof) . In some implementations, the processor 202 may be configured to operate the memory 204. In some other implementations, the memory 204 may be integrated into the processor 202. The processor 202 may be configured to execute computer-readable instructions stored in the memory 204 to cause the UE 200 to perform various functions of the present disclosure.
[0072] The memory 204 may include volatile or non-volatile memory. The memory 204 may store computer-readable, computer-executable code including instructions when executed by the processor 202 cause the UE 200 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such the memory 204 or another type of memory. Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer.
[0073] The controller 206 may manage input and output signals for the UE 200. The controller 206 may also manage peripherals not integrated into the UE 200. In some implementations, the controller 206 may utilize an operating system such as or other operating systems. In some implementations, the controller 206 may be implemented as part of the processor 202.
[0074] In some implementations, the UE 200 may include at least one transceiver 208. In some other implementations, the UE 200 may have more than one transceiver 208. The transceiver 208 may represent a wireless transceiver. The transceiver 208 may include one or more receiver chains 210, one or more transmitter chains 212, or a combination thereof. The means for receiving abovementioned in the processor 202 or the means for transmitting in the processor 202 may be implemented via at least one transceiver 208.
[0075] A receiver chain 210 may be configured to receive signals (e.g. control information, data, packets) over a wireless medium. For example, the receiver chain 210 may include one or more antennas for receive the signal over the air or wireless medium. The receiver chain 210 may include at least one amplifier (e.g. a low-noise amplifier (LNA) ) configured to amplify the received signal. The receiver chain 210 may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receiver chain 210 may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
[0076] A transmitter chain 212 may be configured to generate and transmit signals (e.g. control information, data, packets) . The transmitter chain 212 may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) . The transmitter chain 212 may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium. The transmitter chain 212 may also include one or more antennas for transmitting the amplified signal into the air or wireless medium.
[0077] Figure 3 illustrates an example of a processor 300 in accordance with aspects of the present disclosure. The processor 300 may be an example of a processor configured to perform various operations in accordance with examples as described herein. The processor 300 may include a controller 302 configured to perform various operations in accordance with examples as described herein. The processor 300 may optionally include at least one memory 304, which may be, for example, an L1 / L2 / L3 cache. Additionally, or alternatively, the processor 300 may optionally include one or more arithmetic-logic units (ALUs) 306. One or more of these components may be in electronic communication or otherwise coupled (e.g. operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g. buses) .
[0078] The processor 300 may be a processor chipset and include a protocol stack (e.g. a software stack) executed by the processor chipset to perform various operations (e.g. receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein. The processor chipset may include one or more cores, one or more caches (e.g. memory local to or included in the processor chipset (e.g. the processor 300) or other memory (e.g. random access memory (RAM) , read-only memory (ROM) , dynamic RAM (DRAM) , synchronous dynamic RAM (SDRAM) , static RAM (SRAM) , ferroelectric RAM (FeRAM) , magnetic RAM (MRAM) , resistive RAM (RRAM) , flash memory, phase change memory (PCM) , and others) .
[0079] The controller 302 may be configured to manage and coordinate various operations (e.g. signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 300 to cause the processor 300 to support various operations in accordance with examples as described herein. For example, the controller 302 may operate as a control unit of the processor 300, generating control signals that manage the operation of various components of the processor 300. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.
[0080] The controller 302 may be configured to fetch (e.g. obtain, retrieve, receive) instructions from the memory 304 and determine subsequent instruction (s) to be executed to cause the processor 300 to support various operations in accordance with examples as described herein. The controller 302 may be configured to track memory address of instructions associated with the memory 304. The controller 302 may be configured to decode instructions to determine the operation to be performed and the operands involved. For example, the controller 302 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 300 to cause the processor 300 to support various operations in accordance with examples as described herein. Additionally, or alternatively, the controller 302 may be configured to manage flow of data within the processor 300. The controller 302 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 300.
[0081] The memory 304 may include one or more caches (e.g. memory local to or included in the processor 300 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementations, the memory 304 may reside within or on a processor chipset (e.g. local to the processor 300) . In some other implementations, the memory 304 may reside external to the processor chipset (e.g. remote to the processor 300) .
[0082] The memory 304 may store computer-readable, computer-executable code including instructions that, when executed by the processor 300, cause the processor 300 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. The controller 302 and / or the processor 300 may be configured to execute computer-readable instructions stored in the memory 304 to cause the processor 300 to perform various functions. For example, the processor 300 and / or the controller 302 may be coupled with or to the memory 304, the processor 300, the controller 302, and the memory 304 may be configured to perform various functions described herein. In some examples, the processor 300 may include multiple processors and the memory 304 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.
[0083] The one or more ALUs 306 may be configured to support various operations in accordance with examples as described herein. In some implementations, the one or more ALUs 306 may reside within or on a processor chipset (e.g. the processor 300) . In some other implementations, the one or more ALUs 306 may reside external to the processor chipset (e.g. the processor 300) . One or more ALUs 306 may perform one or more computations such as addition, subtraction, multiplication, and division on data. For example, one or more ALUs 306 may receive input operands and an operation code, which determines an operation to be executed. One or more ALUs 306 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 306 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 306 to handle conditional operations, comparisons, and bitwise operations.
[0084] In some implementations, the processor 300 may be configured to support a means for performing operations of a NE for wireless communication as described with respect to Figure 5. The processor 300 may be configured to or operable to support: a means for detecting an occurrence of a set of CCO issues associated with an LP-WUS or an LP-SS; and a means for sending information related to the set of CCO issues to one or more neighbour NEs.
[0085] It should be appreciated by persons skilled in the art that the components in exemplary processor 300 may be changed, for example, some of the components in exemplary processor 300 may be omitted or modified or new component (s) may be added to exemplary processor 300, without departing from the spirit and scope of the disclosure. For example, in some embodiments, the processor 300 may not include the ALUs 306.
[0086] Figure 4 illustrates an example of a NE 400 in accordance with aspects of the present disclosure. The NE 400 may include a processor 402, a memory 404, a controller 406, and a transceiver 408. The processor 402, the memory 404, the controller 406, or the transceiver 408, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. These components may be coupled (e.g. operatively, communicatively, functionally, electronically, electrically) via one or more interfaces.
[0087] The processor 402, the memory 404, the controller 406, or the transceiver 408, or various combinations or components thereof may be implemented in hardware (e.g. circuitry) . The hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , or other programmable logic device, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure.
[0088] The processor 402 may include an intelligent hardware device (e.g. a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, or any combination thereof) . In some implementations, the processor 402 may be configured to operate the memory 404. In some other implementations, the memory 404 may be integrated into the processor 402. The processor 402 may be configured to execute computer-readable instructions stored in the memory 404 to cause the NE 400 to perform various functions of the present disclosure.
[0089] The memory 404 may include volatile or non-volatile memory. The memory 404 may store computer-readable, computer-executable code including instructions when executed by the processor 402 cause the NE 400 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such the memory 404 or another type of memory. Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer.
[0090] In some implementations, the processor 402 and the memory 404 coupled with the processor 402 may be configured to cause the NE 400 to perform one or more of the functions for wireless communication (e.g. executing, by the processor 402, instructions stored in the memory 404) as described with respect to Figure 5, which is configured to or operable to support: a means for detecting an occurrence of a set of CCO issues associated with an LP-WUS or an LP-SS; and a means for sending information related to the set of CCO issues to one or more neighbour NEs.
[0091] The controller 406 may manage input and output signals for the NE 400. The controller 406 may also manage peripherals not integrated into the NE 400. In some implementations, the controller 406 may utilize an operating system such as or other operating systems. In some implementations, the controller 406 may be implemented as part of the processor 402.
[0092] In some implementations, the NE 400 may include at least one transceiver 408. In some other implementations, the NE 400 may have more than one transceiver 408. The transceiver 408 may represent a wireless transceiver. The transceiver 408 may include one or more receiver chains 410, one or more transmitter chains 412, or a combination thereof. The means for receiving or the means for transmitting abovementioned in the processor 402 may be implemented via at least one transceiver 408.
[0093] A receiver chain 410 may be configured to receive signals (e.g. control information, data, packets) over a wireless medium. For example, the receiver chain 410 may include one or more antennas for receive the signal over the air or wireless medium. The receiver chain 410 may include at least one amplifier (e.g. a low-noise amplifier (LNA) ) configured to amplify the received signal. The receiver chain 410 may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receiver chain 410 may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
[0094] A transmitter chain 412 may be configured to generate and transmit signals (e.g. control information, data, packets) . The transmitter chain 412 may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) . The transmitter chain 412 may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium. The transmitter chain 412 may also include one or more antennas for transmitting the amplified signal into the air or wireless medium.
[0095] It should be appreciated by persons skilled in the art that the components in exemplary NE 400 may be changed, for example, some of the components in exemplary NE 400 may be omitted or modified or new component (s) may be added to exemplary NE 400, without departing from the spirit and scope of the disclosure. For example, in some embodiments, the NE 400 may not include the controller 406.
[0096] Figure 5 illustrates a flowchart of a method performed by a NE in accordance with some aspects of the present disclosure. The operations of the method may be implemented by a NE (e.g. a BS, a CU of the BS, a RAN node, or a CU of the RAN node) as described herein. The NE may execute a set of instructions to control the function elements of the NE to perform the described functions. In some implementations, aspects of operations 502 and 504 of the NE may be performed by NE 400 as described with reference to Figure 4.
[0097] At 502, the method may include detecting, by a NE (e.g. NG-RAN node 1 or NG-RAN node 2) , an occurrence of a set of CCO issues (denoted as a first set of CCO issues) associated with an LP-WUS or an LP-SS. The first set of CCO issues may be named as "aset of LP-WUS or LP-SS specific CCO issues, " "one or more LP-WUS or LP-SS specific CCO issues, " "one or more CCO issues related with LP-WUS or LP-SS" or the like.
[0098] In some implementations, the first set of CCO issues may include at least one of the following:(1) a cell level coverage issue related with LP-WUS or LP-SS, e.g. the cell level coverage issue may be that coverage of a cell is expanded or reduced;(2) a reference signal level coverage issue related with LP-WUS or LP-SS, e.g. the reference signal level coverage issue may be that coverage of a reference signal (e.g. LP-WUS or LP-SS) is expanded or reduced;(3) a synchronization signal level coverage issue related with LP-WUS or LP-SS, e.g. the synchronization signal level coverage issue may be that coverage of a synchronization signal (e.g. LP-SS) is expanded or reduced;(4) a cell level edge capacity issue related with LP-WUS or LP-SS;(5) a reference signal level edge capacity issue related with LP-WUS or LP-SS; or(6) a synchronization signal level edge capacity issue related with LP-WUS or LP-SS.
[0099] At 504, the method may include sending information (denoted as first information) related to the first set of CCO issues by the NE to one or more neighbour NEs. For example, the NE and / or the one or more neighbour NEs may be a BS or a CU of the BS. If the NE is a BS, the first set of CCO issues may occur in the BS. If the NE is a CU of a BS, the first set of CCO issues may occur in the CU of a BS, or in one or more DUs of the BS.
[0100] In some implementations, the first information sent at 504 may include at least one of the following:(1) information indicating whether the first set of CCO issues is at least one coverage issue or at least one capacity issue;(2) CGI information of one or more cells in which the first set of CCO issues is detected;(3) ID information of one or more LP-WUSs in which the first set of CCO issues is detected, e.g. one or more indexes or IDs of one or more LP-WUSs in which the first set of CCO issues is detected; or(4) ID information of one or more LP-SSs in which the first set of CCO issues is detected, e.g. one or more indexes or IDs of one or more LP-SSs in which the first set of CCO issues is detected.
[0101] In some implementations, after detecting the occurrence of the first set of CCO issues at 502, the NE (e.g. NG-RAN node 1) may update configuration information to solve the first set of CCO issues, and / or send the updated configuration information to the one or more neighbour NEs (e.g. NG-RAN node 2) . The configuration information or the updated configuration information may be named as "a cell or LP-WUS or LP-SS deployment configuration" or the like. Such configuration information or the updated configuration information may include: a cell level coverage configuration, an LP-WUS level coverage configuration, and / or an LP-SS level coverage configuration.
[0102] In some implementations, to detect the occurrence of the first set of CCO issues at 502, the NE (e.g. NG-RAN node 2) may receive "information (denoted as second information) related to a set of CCO issues (denoted as a second set of CCO issues) that is detected by the one or more neighbour NEs (e.g. NG-RAN node 1) " and / or "configuration information which is used to solve the second set of CCO issues" from the one or more neighbour NEs (e.g. NG-RAN node 1) . Then, the NE (e.g. NG-RAN node 2) may detect the occurrence of the first set of CCO issues based on the second information and / or "the configuration information which is used to solve the second set of CCO issues. " For example, this configuration information may be named as "a cell or LP-WUS or LP-SS deployment configuration" or the like, and may include: a cell level coverage configuration, an LP-WUS level coverage configuration, and / or an LP-SS level coverage configuration.
[0103] The second set of CCO issues may be similar to or the same as the first set of CCO issues. For example, the second set of CCO issues may include at least one of the following:(1) a cell level coverage issue related with LP-WUS or LP-SS;(2) a reference signal level coverage issue related with LP-WUS or LP-SS;(3) a synchronization signal level coverage issue related with LP-WUS or LP-SS;(4) a cell level edge capacity issue related with LP-WUS or LP-SS;(5) a reference signal level edge capacity issue related with LP-WUS or LP-SS; or(6) a synchronization signal level edge capacity issue related with LP-WUS or LP-SS.
[0104] In some implementations, after detecting the occurrence of the first set of CCO issues at 502, the NE (e.g. NG-RAN node 2) may perform at least one of the following:(1) update configuration information to solve the first set of CCO issues;(2) update configuration information to adapt to the second information, so as to match with "the configuration information which is used to solve the second set of CCO issues that is received from the one or more neighbour NEs (e.g. NG-RAN node 1) " ;(3) update configuration information to solve the second set of CCO issues; or(4) send the updated configuration information to the one or more neighbour NEs (e.g. NG-RAN node 1) .
[0105] In some implementations, if the NE is a CU of a BS (e.g. CU1 of NG-RAN node 1) , the CU (e.g. CU1) of the BS may send the first information to one or more DUs (e.g. DU1 and / or DU3) of the BS that are managed by the CU (e.g. CU1) of the BS, and / or receive a modification configuration associated with the first set of CCO issues from the one or more DUs (e.g. DU1 and / or DU3) of the BS. The one or more DUs of the BS may include: (1) a DU (e.g. DU1) in which the detected one or more LP-WUS or LP-SS specific CCO issues occur, and / or (2) a DU (e.g. DU3) in which the detected one or more LP-WUS or LP-SS specific CCO issues do not occur. In an example, a LP-WUS or LP-SS specific CCO issue occurs in DU1, DU3 is a DU which is neighbouring to DU1, and CU1 may send the first information to DU1 only, or send the first information to both of DU1 and DU3.
[0106] For instance, the modification configuration associated with the first set of CCO issues that is received from the one or more DUs (e.g. DU1 and / or DU3) of the BS may include at least one of the following:(1) a set of modification cause values of the modification configuration, e.g. the set of modification cause values corresponds to "the one or more CCO issues related with LP-WUS or LP-SS (e.g. one or more coverage issues or one or more capacity issues of LP-WUS or LP-SS) which are detected by CU1 of NG-RAN node 1) " ;(2) CGI information of one or more cells in which the first set of CCO issues is detected;(3) a cell level coverage configuration which is used to solve the first set of CCO issues, e.g. this configuration includes at least one cell level coverage state;(4) ID information of one or more LP-WUSs in which the first set of CCO issues is detected, e.g. one or more indexes or IDs of one or more LP-WUSs in which the first set of CCO issues is detected;(5) an LP-WUS level coverage configuration which is used to solve the first set of CCO issues, e.g. the configuration includes at least one coverage state related with LP-WUS;(6) ID information of one or more LP-SSs in which the first set of CCO issues is detected, e.g. one or more indexes or IDs of one or more LP-SSs in which the first set of CCO issues is detected; or(7) an LP-SS level coverage configuration which is used to solve the first set of CCO issues e.g. the configuration includes at least one coverage state related with LP-SS.
[0107] In some other implementations, the NE is a CU of a BS (e.g. CU2 of NG-RAN node 2) and the one or more neighbour NEs are one or more CUs of one or more neighbour BSs (e.g. CU1 of NG-RAN node 1) . To detect the occurrence of the first set of CCO issues at 502, the CU of the BS (e.g. CU2) may receive "second information related to a second set of CCO issues detected by the one or more CUs of the one or more neighbour BSs" and / or "configuration information which is used to solve the second set of CCO issues" from the one or more CUs (e.g. CU1) of the one or more neighbour BSs. For example, the received configuration information may include: a cell level coverage configuration, an LP-WUS level coverage configuration, and / or an LP-SS level coverage configuration. Then, the CU of the BS (e.g. CU2) may detect the occurrence of the first set of CCO issues based on "the second information" and / or "the received configuration information which is used to solve the second set of CCO issues" .
[0108] In some implementations, the second information related to the second set of CCO issues that are detected by the one or more CUs (e.g. CU1) of the one or more neighbour BSs may include at least one of the following:(1) information indicating whether the second set of CCO issues is at least one coverage issue or at least one capacity issue;(2) CGI information of one or more cells in which the second set of CCO issues is detected;(3) ID information of one or more LP-WUSs in which the second set of CCO issues is detected; or(4) ID information of one or more LP-SSs in which the second set of CCO issues is detected.
[0109] In some implementations, after detecting the occurrence of the first set of CCO issues at 502, the CU of the BS (e.g. CU2) may send at least one of the following to one or more DUs (e.g. DU2) of the BS (e.g. a DU in which the detected one or more LP-WUS or LP-SS specific CCO issues occur or not) that are managed by the CU of the BS (e.g. CU2) :(1) the first information;(2) the second information; or(3) the received configuration information which is used to solve the second set of CCO issues.
[0110] Then, the CU of the BS (e.g. CU2) may receive at least one of the following from the one or more DUs (e.g. DU2) of the BS:(1) a set of modification cause values (denoted as a first set of modification cause values) , which corresponds to the first set of CCO issues;(2) CGI information of one or more cells in which the first set of CCO issues is detected;(3) a cell level coverage configuration which is used to solve the first set of CCO issues, e.g. this configuration includes at least one cell level coverage state;(4) ID information of one or more LP-WUSs in which the first set of CCO issues is detected;(5) an LP-WUS level coverage configuration which is used to solve the first set of CCO issues, e.g. this configuration includes at least one coverage state related with LP-WUS;(6) ID information of one or more LP-SSs in which the first set of CCO issues is detected;(7) an LP-SS level coverage configuration which is used to solve the first set of CCO issues, e.g. this configuration includes at least one coverage state related with LP-SS;(8) a set of modification cause values (denoted as a second set of modification cause values) , which corresponds to the second set of CCO issues;(9) CGI information of one or more cells in which the second set of CCO issues is detected;(10) a cell level coverage configuration which is used to solve the second set of CCO issues, e.g. this configuration includes at least one cell level coverage state;(11) ID information of one or more LP-WUSs in which the second set of CCO issues is detected;(12) an LP-WUS level coverage configuration which is used to solve the second set of CCO issues, e.g. this configuration includes at least one coverage state related with LP-WUS;(13) ID information of one or more LP-SSs in which the second set of CCO issues is detected; or(14) an LP-SS level coverage configuration which is used to solve the second set of CCO issues, e.g. this configuration includes at least one coverage state related with LP-SS.
[0111] In some implementations, the CU of the BS (e.g. CU2) may send configuration information, which includes at least one of the following, to the one or more CUs (e.g. CU1) of the one or more neighbour BSs:(1) the cell level coverage configuration which is used to solve the first set of CCO issues, e.g. the configuration includes the at least one cell level coverage state;(2) the LP-WUS level coverage configuration which is used to solve the first set of CCO issues, e.g. the configuration includes the at least one coverage state related with LP-WUS;(3) the LP-SS level coverage configuration which is used to solve the first set of CCO issues, e.g. the configuration includes the at least one coverage state related with LP-SS;(4) the cell level coverage configuration (e.g. including the at least one cell level coverage state) which is used to adapt to "the configuration information which is used to solve the second set of CCO issue" ;(5) the LP-WUS level coverage configuration (e.g. including the at least one coverage state related with LP-WUS) which is used to adapt to "the configuration information which is used to solve the second set of CCO issues" ; or(6) the LP-SS level coverage configuration (e.g. including the at least one coverage state related with LP-SS) which is used to adapt to "the configuration information which is used to solve the second set of CCO issues" .
[0112] It should be noted that the method described in Figure 5 describes possible implementations, and that the operations and the steps may be rearranged or otherwise eliminated or modified and that other implementations are possible, without departing from the spirit and scope of the disclosure.
[0113] The following text describes specific embodiments of the flowchart as shown and illustrated in Figure 5.
[0114] Some specific embodiments regarding CCO mechanism in Xn for one or more cells supporting LP-WUS or LP-SS may be as follows, in which Steps 1 to 7 are performed.
[0115] Step 1: NG-RAN node 1 detects one or more LP-WUS or LP-SS specific CCO issues (e.g. a first set of CCO issues in the embodiments of Figure 5) . An LP-WUS or LP-SS specific CCO issue may happen in a cell supporting LP-WUS or LP-SS or LP-WUR or any type of LRs. The LP-WUS or LP-SS specific CCO issue may be a coverage issue related with LP-WUS or LP-SS, or a capacity issue related with LP-WUS or LP-SS. On the other hand, the LP-WUS or LP-SS specific CCO issue may be a cell level issue, a reference signal level issue, or a synchronization signal level issue.
[0116] Step 2: NG-RAN node 1 updates one or more corresponding coverage configurations to solve the detected one or more LP-WUS or LP-SS specific CCO issues. In an example, NG-RAN node 1 updates its cell level coverage configuration to solve the detected cell level issue, e.g. updates a cell coverage state in the cell in which the detected issue occurs. In another example, NG-RAN node 1 updates its LP-WUS or LP-SS level coverage configuration to solve the detected reference signal or synchronization signal level issue, e.g. updates a coverage state related with the LP-WUS or LP-SS in which the detected issue occurs.
[0117] Step 3: NG-RAN node 1 sends LP-WUS or LP-SS specific information (e.g. first information in the embodiments of Figure 5) (e.g. the detected one or more LP-WUS or LP-SS specific CCO issues, and / or the corresponding coverage configurations which is used to solve the detected LP-WUS or LP-SS specific CCO issues) to its one or more neighbour NG-RAN nodes (e.g. NG-RAN node 2) , e.g. via NG-RAN NODE CONFIGURATION UPDATE message. In some embodiments, the LP-WUS or LP-SS specific information may include at least one of following:(1) one or more CCO issues related with LP-WUS (e.g. one or more coverage issues or one or more capacity issues of LP-WUS) detected by NG-RAN node 1;(2) one or more CCO issues related with LP-SS (e.g. one or more coverage issues or one or more capacity issues of LP-SS) detected by NG-RAN node 1;(3) one or more CGIs of one or more cells where the detected one or more CCO issues occur in NG-RAN node 1;(4) one or more cell level coverage configurations; e.g. for one cell where the detected one or more CCO issues occur, one cell level coverage configuration is used to solve one of the detected one or more CCO issues (e.g. the cell level coverage configuration includes at least one cell level coverage state) ;(5) one or more IDs of one or more LP-WUSs where the detected one or more CCO issues occur in NG-RAN node 1, e.g. one or more indexes or one or more IDs of one or more LP-WUSs in which the detected CCO issues occur;(6) one or more IDs of one or more LP-SSs where the detected one or more CCO issues occur in NG-RAN node 1, e.g. one or more indexes or one or more IDs of one or more LP-SSs in which the detected CCO issues occur;(7) one or more LP-WUS level coverage configurations; e.g. for one LP-WUS where the detected one or more CCO issues occur, one LP-WUS level coverage configuration is used to solve one of the detected one or more CCO issues (e.g. the LP-WUS level coverage configuration includes at least one coverage state related with LP-WUS) ; or(8) one or more LP-SS level coverage configurations; e.g. for one LP-SS where the detected one or more CCO issues occur, one LP-SS level coverage configuration is used to solve one of the detected one or more CCO issues (e.g. the LP-SS level coverage configuration includes at least one coverage state related with LP-SS) .
[0118] Step 4: after one or more neighbour NG-RAN nodes (e.g. NG-RAN node 2) receive the LP-WUS or LP-SS specific information (e.g. the detected one or more LP-WUS or LP-SS specific CCO issues, and / or the corresponding coverage configurations which is used to solve the detected LP-WUS or LP-SS specific CCO issues) from NG-RAN node 1, following operations may be performed by the one or more neighbour NG-RAN nodes (taking NG-RAN node 2 as an example) :(1) NG-RAN node 2 understands the issues detected by NG-RAN node 1, e.g. based on the detected one or more LP-WUS or LP-SS specific CCO issues (e.g. one or more coverage issues or one or more capacity issues of LP-WUS or LP-SS) after receiving the LP-WUS or LP-SS specific information. NG-RAN node 2 needs to update its own cell or LP-WUS or LP-SS deployment configuration, so as to match with or adapt to the cell or LP-WUS or LP-SS deployment configuration modified by NG-RAN node 1 (i.e. the received corresponding coverage configurations which is used to solve the one or more LP-WUS or LP-SS specific CCO issues detected by NG-RAN node 1) .(2) NG-RAN node 2 identifies one or more deployment configurations modified by NG-RAN node 1. For example, NG-RAN node 2 identifies the cell deployment configuration modified by NG-RAN node 1, based on the corresponding coverage configurations received from NG-RAN node 1. NG-RAN node 2 identifies the LP-WUS or LP-SS deployment configuration modified by NG-RAN node 1, based on the corresponding coverage configurations received from NG-RAN node 1.(3) NG-RAN node 2 updates its cell or LP-WUS or LP-SS deployment configurations (e.g. at least one cell level coverage state or at least one coverage state related with LP-WUS or LP-SS) , so as to match with or adapt to the cell or LP-WUS or LP-SS deployment configurations (e.g. at least one cell level coverage state or at least one coverage state related with LP-WUS or LP-SS) modified by NG-RAN node 1.
[0119] Step 5: NG-RAN node 2 detects one or more LP-WUS or LP-SS specific CCO issues (e.g. a second set of CCO issues in the embodiments of Figure 5) , e.g. at least one coverage issue related with LP-WUS or LP-SS, or at least one capacity issue related with LP-WUS or LP-SS. For example, the one or more LP-WUS or LP-SS specific CCO issues may be at least one cell level issue, at least one reference signal level issue, or at least one synchronization signal level issue.
[0120] Step 6: NG-RAN node 2 sends "information related to the set of CCO issues (i.e. the second set of CCO issues) that is detected by NG-RAN node 2" (e.g. second information in the embodiments of Figure 5) and / or "configuration information which is used to solve the second set of CCO issues" to its one or more neighbour NG-RAN nodes (e.g. including NG-RAN node 1) , e.g. via NG-RAN NODE CONFIGURATION UPDATE message. The second information in Step 6 includes one or more elements the same as or similar to those of the LP-WUS or LP-SS specific information (i.e. the first information) in Step 3.
[0121] Step 7: NG-RAN node 1 detects one or more LP-WUS or LP-SS specific CCO issues (e.g. the first set of CCO issues in the embodiments of Figure 5) further based on at least one of "the second information related to the second set of CCO issues detected by the one or more neighbour NEs" or "the configuration information which is used to solve the second set of CCO issues. " Then, the steps performed by NG-RAN node 1 and its one or more neighbour NG-RAN nodes (e.g. NG-RAN node 2) are similar to those of Steps 2 to 6.
[0122] Some specific embodiments regarding CCO mechanism in F1 for one or more cells supporting LP-WUS or LP-SS are as follows, in which Steps A to J are performed.
[0123] Step A: CU of NG-RAN node 1 (e.g. CU1) detects one or more LP-WUS or LP-SS specific CCO issues (e.g. a first set of CCO issues in the embodiments of Figure 5) . An LP-WUS or LP-SS specific CCO issue may happen in a cell supporting LP-WUS or LP-SS or LP-WUR or any type of LRs. The LP-WUS or LP-SS specific CCO issue may be a coverage issue related with LP-WUS or LP-SS, or a capacity issue related with LP-WUS or LP-SS. On the other hand, the LP-WUS or LP-SS specific CCO issue may be a cell level issue, a reference signal level issue, or a synchronization signal level issue.
[0124] Step B: CU of NG-RAN node 1 (e.g. CU1) sends the detected one or more LP-WUS or LP-SS specific CCO issues to its one or more DUs. The one or more DUs may be a DU in which the detected LP-WUS or LP-SS specific CCO issues occur or not. For instance, the one or more DUs include: one DU (e.g. DU1) where an LP-WUS or LP-SS specific CCO issue occurs, and / or another DU (e.g. DU3) neighbouring to "the DU where the LP-WUS or LP-SS specific CCO issue occurs" .
[0125] In some embodiments of Step B, CU of NG-RAN node 1 (e.g. CU1) may send at least one of following to its one or more DUs (e.g. DU1) , e.g. via GNB-CU CONFIGURATION UPDATE message:(1) one or more CCO issues related with LP-WUS (e.g. one or more coverage issues or one or more capacity issues of LP-WUS) which are detected by CU of NG-RAN node 1 (e.g. CU1) ;(2) one or more CCO issues related with LP-SS (e.g. one or more coverage issues or one or more capacity issues of LP-SS) which are detected by CU of NG-RAN node 1 (e.g. CU1) ;(3) one or more CGIs of one or more cells in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) ;(4) one or more IDs of one or more LP-WUSs in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , e.g. one or more indexes or one or more IDs of one or more LP-WUSs in which the one or more CCO issues are detected; or(5) one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , e.g. one or more indexes or one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected.
[0126] Step C: one or more DUs of NG-RAN node 1 (e.g. DU1 and / or DU3) update corresponding coverage configurations to solve the one or more LP-WUS or LP-SS specific CCO issues detected by its CU (e.g. CU1) . Taking DU1 as an example, in an embodiment, DU1 may update its cell level coverage configuration to solve the detected cell level issue, e.g. update a cell coverage state in the cell where the detected issue occurs. In another embodiment, DU1 may update its LP-WUS or LP-SS level coverage configuration to solve the detected reference signal or synchronization signal level issue, e.g. update a coverage state related with LP-WUS or LP-SS where the detected issue occurs.
[0127] Step D: one or more DUs of NG-RAN node 1 (e.g. DU1 and / or DU3) send the corresponding coverage configurations which is used to solve the indicated LP-WUS or LP-SS specific CCO issues to its CU (e.g. CU1) . Taking DU1 as an example, DU1 may send at least one of following to its CU (e.g. CU1) , e.g. via GNB-DU CONFIGURATION UPDATE message:(1) one or more cause values of the modification, i.e. one or more modification cause values of the corresponding coverage configurations; e.g. one cause value corresponds to one of the indicated one or more LP-WUS or LP-SS specific CCO issues (e.g. one or more coverage issues or one or more capacity issues of LP-WUS or LP-SS) which are detected by CU of NG-RAN node 1 (e.g. CU1) ;(2) one or more CGIs of one or more cells in which the one or more LP-WUS or LP-SS specific CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) ;(3) one or more cell level coverage configurations; e.g. for one cell in which the one or more LP-WUS or LP-SS specific CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , one cell level coverage configuration (e.g. including at least one cell level coverage state) is used to solve one of the detected one or more LP-WUS or LP-SS specific CCO issues;(4) one or more IDs of one or more LP-WUSs in which the one or more specific CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , e.g. one or more indexes or one or more IDs of one or more LP-WUSs in which the one or more specific CCO issues are detected;(5) one or more LP-WUS level coverage configurations; e.g. for one LP-WUS where the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , one LP-WUS level coverage configuration is used to solve one of the detected one or more CCO issues (e.g. the LP-WUS level coverage configuration includes at least one coverage state related with LP-WUS) ;(6) one or more IDs of one or more LP-SSs in which the one or more specific CCO issues are detected, e.g. one or more indexes or one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected; or(7) one or more LP-SS level coverage configurations; e.g. for one LP-SS where the one or more CCO issues are detected, one LP-SS level coverage configuration (e.g. including at least one coverage state related with LP-SS) is used to solve one of the detected one or more CCO issues.
[0128] Step E: CU of NG-RAN node 1 (e.g. CU1) sends LP-WUS or LP-SS specific information (e.g. first information in the embodiments of Figure 5) (e.g. the detected one or more LP-WUS or LP-SS specific CCO issues, and corresponding coverage configurations which is used to solve the detected one or more LP-WUS or LP-SS specific CCO issues) to its one or more neighbour NG-RAN nodes (e.g. CU of NG-RAN node 2 (e.g. CU2) ) , e.g. via NG-RAN NODE CONFIGURATION UPDATE message. In some embodiments, the LP-WUS or LP-SS specific information may include at least one of following:(1) one or more CCO issues related with LP-WUS (e.g. one or more coverage issues or one or more capacity issues of LP-WUS) which are detected by CU of NG-RAN node 1 (e.g. CU1) ;(2) one or more CCO issues related with LP-SS (e.g. one or more coverage issues or one or more capacity issues of LP-SS) which are detected by CU of NG-RAN node 1 (e.g. CU1) ;(3) one or more CGIs of one or more cells in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) ;(4) one or more cell level coverage configurations which are used to solve one or more CCO issues detected by CU of NG-RAN node 1; e.g. for one cell in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , one cell level coverage configuration (e.g. which includes at least one cell level coverage state) is used to solve one of the one or more CCO issues detected by CU of NG-RAN node 1;(5) one or more IDs of one or more LP-WUSs in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , e.g. one or more indexes or one or more IDs of one or more LP-WUSs in which the one or more CCO issues are detected by CU of NG-RAN node 1;(6) one or more LP-WUS level coverage configurations which are used to solve one or more CCO issues detected by CU of NG-RAN node 1; e.g. for one LP-WUS where the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , one LP-WUS level coverage configuration (e.g. which includes at least one coverage state related with LP-WUS) is used to solve one of the one or more CCO issues detected by CU of NG-RAN node 1;(7) one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected, e.g. one or more indexes or one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected by CU of NG-RAN node 1; or(8) one or more LP-SS level coverage configurations which are used to solve one or more CCO issues detected by CU of NG-RAN node 1; e.g. for one LP-SS where the one or more CCO issues are detected, one LP-SS level coverage configuration (e.g. which includes at least one coverage state related with LP-SS) is used to solve one of the one or more CCO issues detected by CU of NG-RAN node 1.
[0129] Step F: after one or more neighbour NG-RAN nodes (e.g. CU of NG-RAN node 2 (e.g. CU2) ) receive the LP-WUS or LP-SS specific information (e.g. the detected one or more LP-WUS or LP-SS specific CCO issues, and corresponding coverage configurations which is used to solve the detected one or more LP-WUS or LP-SS specific CCO issues) from the CU of NG-RAN node 1 (e.g. CU1) , each CU of one or more neighbour NG-RAN nodes (e.g. CU2 of NG-RAN node 2) sends at least one of following to its one or more DUs (e.g. DU2 of NG-RAN node 2) , e.g. via GNB-CU CONFIGURATION UPDATE message:(1) one or more CCO issues related with LP-WUS (e.g. a first set of CCO issues in the embodiments of Figure 5) (e.g. one or more coverage issues or one or more capacity issues of LP-WUS) which are detected by CU of NG-RAN node 1 (e.g. CU1) ;(2) one or more CCO issues related with LP-SS (e.g. a first set of CCO issues in the embodiments of Figure 5) (e.g. one or more coverage issues or one or more capacity issues of LP-SS) which are detected by CU of NG-RAN node 1 (e.g. CU1) ;(3) one or more CGIs of one or more cells in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) ;(4) one or more cell level coverage configurations; e.g. for one cell in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , one cell level coverage configuration (e.g. including at least one cell level coverage state) is used to solve one of the one or more CCO issues detected by CU of NG-RAN node 1;(5) one or more IDs of one or more LP-WUSs in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , e.g. one or more indexes or one or more IDs of one or more LP-WUSs in which the one or more CCO issues are detected by CU of NG-RAN node 1;(6) one or more LP-WUS level coverage configurations; e.g. for one LP-WUS where the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , one LP-WUS level coverage configuration is used to solve one of the one or more CCO issues (e.g. the LP-WUS level coverage configuration includes at least one coverage state related with LP-WUS) detected by CU of NG-RAN node 1;(7) one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , e.g. one or more indexes or one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected by CU of NG-RAN node 1;(8) one or more LP-SS level coverage configurations; e.g. for one LP-SS where the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , one LP-SS level coverage configuration (e.g. including a coverage state related with LP-SS) is used to solve one of the one or more CCO issues detected by CU of NG-RAN node 1;(9) one or more CCO issues related with LP-WUS (e.g. a second set of CCO issues in the embodiments of Figure 5) (e.g. one or more coverage issues or one or more capacity issues of LP-WUS) which are detected by CU of NG-RAN node 2 (e.g. CU2) if any;(10) one or more CCO issues related with LP-SS (e.g. a second set of CCO issues in the embodiments of Figure 5) (e.g. one or more coverage issues or one or more capacity issues of LP-SS) which are detected by CU of NG-RAN node 2 (e.g. CU2) if any;(11) one or more CGIs of one or more cells in which the one or more CCO issues are detected by CU of NG-RAN node 2 (e.g. CU2) if any;(12) one or more IDs of one or more LP-WUSs in which the one or more CCO issues are detected by CU of NG-RAN node 2 (e.g. CU2) if any, e.g. one or more indexes or one or more IDs of one or more LP-WUSs in which the one or more CCO issues are detected by CU of NG-RAN node 2; or(13) one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected by CU of NG-RAN node 2 (e.g. CU2) if any, e.g. one or more indexes or one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected by CU of NG-RAN node 2.
[0130] Step G: one or more DUs of one or more neighbour NG-RAN nodes (e.g. DU2 of NG-RAN node 2) update its coverage configurations, e.g. based on the information received from the CU of NG-RAN node 2 (e.g. CU2) as mentioned in Step F, so as to adapt to the one or more LP-WUS or LP-SS specific CCO issues detected in NG-RAN node 1, or to match with the coverage modifications performed in NG-RAN node 1, or to solve the one or more LP-WUS or LP-SS specific CCO issues detected in NG-RAN node 2.
[0131] Step H: the one or more DUs of one or more neighbour NG-RAN nodes (e.g. DU2 of NG-RAN node 2) send the updated coverage configurations to its CU (e.g. CU2 of NG-RAN node 2) . For example, the one or more DUs of NG-RAN node 2 (e.g. DU2) send at least one of following to its CU (e.g. CU2) , e.g. via GNB-DU CONFIGURATION UPDATE message:(1) a set of cause values of the modification (e.g. a first set of modification cause values in the embodiments of Figure 5) , which corresponds to the one or more LP-WUS or LP-SS specific CCO issues (e.g. a first set of CCO issues in the embodiments of Figure 5) (e.g. one or more coverage issues or one or more capacity issues of LP-WUS or LP-SS) which are detected by CU of NG-RAN node 1 (e.g. CU1) ;(2) one or more CGIs of one or more cells in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) ;(3) one or more cell level coverage configurations which are used to match with or adapt to "one or more coverage modifications performed in NG-RAN node 1 which are used to solve one or more CCO issues detected by CU of NG-RAN node 1 (e.g. CU1) " ; e.g. for one cell in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , one cell level coverage configuration (e.g. including a cell level coverage state) is used to match with "the configuration information received from CU of NG-RAN node 1 which is used solve one of the one or more CCO issues detected by CU of NG-RAN node 1" ;(4) one or more IDs of one or more LP-WUSs in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , e.g. one or more indexes or one or more IDs of one or more LP-WUSs in which the one or more CCO issues are detected by CU of NG-RAN node 1;(5) one or more LP-WUS level coverage configurations which are used to match with or adapt to "one or more coverage modifications performed in NG-RAN node 1 which are used to solve one or more CCO issues detected by CU of NG-RAN node 1 (e.g. CU1) " ; e.g. for one LP-WUS where the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , one LP-WUS level coverage configuration (e.g. including a coverage state related with LP-WUS) is used to match with "the configuration information received from CU of NG-RAN node 1 which is used solve one of the one or more CCO issues detected by CU of NG-RAN node 1" ;(6) one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , e.g. one or more indexes or one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected;(7) one or more LP-SS level coverage configurations which are used to match with or adapt to "one or more coverage modifications performed in NG-RAN node 1 which are used to solve one or more CCO issues detected by CU of NG-RAN node 1 (e.g. CU1) " ; e.g. for one LP-SS where the one or more CCO issues are detected by CU of NG-RAN node 1 (e.g. CU1) , one LP-SS level coverage configuration (e.g. including a coverage state related with LP-SS) is used to match with "the configuration information received from CU of NG-RAN node 1 which is used solve one of the one or more CCO issues detected by CU of NG-RAN node 1" ;(8) a set of cause values of the modification (e.g. a second set of modification cause values in the embodiments of Figure 5) , which corresponds to the one or more CCO issues related with LP-WUS or LP-SS (e.g. a second set of CCO issues in the embodiments of Figure 5) (e.g. one or more coverage issues or one or more capacity issues of LP-WUS or LP-SS) which are detected by CU of NG-RAN node 2 (e.g. CU2) if any;(9) one or more CGIs of one or more cells in which the one or more CCO issues are detected by NG-RAN node 2 (e.g. CU2) if any;(10) one or more cell level coverage configurations which are used solve the one or more CCO issues detected by CU of NG-RAN node 2 (e.g. CU2) if any; e.g. for one cell in which the one or more CCO issues are detected by CU of NG-RAN node 2 (e.g. CU2) if any, one cell level coverage configuration (e.g. including at least one cell level coverage state) is used to solve one of the one or more CCO issues detected by CU of NG-RAN node 2 (e.g. CU2) ;(11) one or more IDs of one or more LP-WUSs in which the one or more CCO issues are detected by CU of NG-RAN node 2 (e.g. CU2) if any, e.g. one or more indexes or one or more IDs of one or more LP-WUSs in which the one or more CCO issues are detected by CU of NG-RAN node 2 (e.g. CU2) ;(12) one or more LP-WUS level coverage configurations which are used solve the one or more CCO issues detected by CU of NG-RAN node 2 (e.g. CU2) if any; e.g. for one LP-WUS where the one or more CCO issues are detected by CU of NG-RAN node 2 (e.g. CU2) if any, one LP-WUS level coverage configuration (e.g. including at least one coverage state related with LP-WUS) is used to solve one of the one or more CCO issues detected by CU of NG-RAN node 2 (e.g. CU2) ;(13) one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected by CU of NG-RAN node 2 (e.g. CU2) if any, e.g. one or more indexes or one or more IDs of one or more LP-SSs in which the one or more CCO issues are detected by CU of NG-RAN node 2 (e.g. CU2) ;(14) one or more LP-SS level coverage configurations which are used solve the one or more CCO issues detected by CU of NG-RAN node 2 (e.g. CU2) if any; e.g. for one LP-SS where the one or more CCO issues are detected by CU of NG-RAN node 2 (e.g. CU2) if any, one LP-SS level coverage configuration (e.g. including at least one coverage state related with LP-SS) is used to solve one of the one or more CCO issues detected by CU of NG-RAN node 2 (e.g. CU2) .
[0132] Step I: the one or more neighbour NG-RAN nodes (e.g. NG-RAN node 2) sends "information related to the set of CCO issues (i.e. the second set of CCO issues) that is detected by NG-RAN node 2" (e.g. second information in the embodiments of Figure 5) and / or "configuration information which is used to solve the second set of CCO issues" to its one or more neighbour NG-RAN nodes (e.g. including NG-RAN node 1) , e.g. via NG-RAN NODE CONFIGURATION UPDATE message. The second information in Step I includes one or more elements the same as or similar to those of the LP-WUS or LP-SS specific information (i.e. the first information) in Step E.
[0133] Step J: NG-RAN node 1 detects one or more LP-WUS or LP-SS specific CCO issues (e.g. the first set of CCO issues in the embodiments of Figure 5) further based on at least one of "the second information related to the second set of CCO issues detected by the one or more neighbour NEs (e.g. NG-RAN node 2) " or "the configuration information which is used to solve the second set of CCO issues. " Then, the steps performed by NG-RAN node 1 and its one or more neighbour NG-RAN nodes (e.g. NG-RAN node 2) are similar to those of Steps B to I.
[0134] The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1.A network equipment (NE) for wireless communication, comprising:at least one memory; andat least one processor coupled with the at least one memory and configured to cause the NE to:detect an occurrence of a first set of capacity and coverage optimization (CCO) issues associated with a low power wake up signal (LP-WUS) or a low power synchronization signaling (LP-SS) ; andsend first information related to the first set of CCO issues to one or more neighbour NEs.2.The NE of claim 1, wherein the first information includes at least one of the following:information indicating whether the first set of CCO issues is at least one coverage issue or at least one capacity issue;cell global identifier (CGI) information of one or more cells in which the first set of CCO issues is detected;identifier (ID) information of one or more LP-WUSs in which the first set of CCO issues is detected; orID information of one or more LP-SSs in which the first set of CCO issues is detected.3.The NE of claim 1, wherein, after detecting the occurrence of the first set of CCO issues, the at least one processor is further configured to cause the NE to perform at least one of the following:update configuration information to solve the first set of CCO issues; orsend the updated configuration information to the one or more neighbour NEs.4.The NE of claim 1, wherein, to detect the occurrence of the first set of CCO issues, the at least one processor is further configured to cause the NE to:receive, from the one or more neighbour NEs, at least one of second information related to a second set of CCO issues detected by the one or more neighbour NEs or configuration information which is used to solve the second set of CCO issues; anddetect the occurrence of the first set of CCO issues based on the at least one of the second information or the configuration information which is used to solve the second set of CCO issues.5.The NE of claim 4, wherein, after detecting the occurrence of the first set of CCO issues, the at least one processor is further configured to cause the NE to perform at least one of the following:update configuration information to solve the first set of CCO issues,update configuration information to adapt to the second information,update configuration information to solve the second set of CCO issues; orsend the updated configuration information to the one or more neighbour NEs.6.The NE of claim 1, wherein, if the NE is a central unit (CU) of a base station (BS) , the at least one processor is further configured to cause the CU of the BS to perform at least one of the following:send the first information to one or more distributed units (DUs) of the BS; orreceive a modification configuration associated with the first set of CCO issues from the one or more DUs of the BS.7.The NE of claim 6, wherein the modification configuration associated with the first set of CCO issues includes at least one of the following:a set of modification cause values of the modification configuration;cell global identifier (CGI) information of one or more cells in which the first set of CCO issues is detected;a cell level coverage configuration which is used to solve the first set of CCO issues;identifier (ID) information of one or more LP-WUSs in which the first set of CCO issues is detected;an LP-WUS level coverage configuration which is used to solve the first set of CCO issues;ID information of one or more LP-SSs in which the first set of CCO issues is detected; oran LP-SS level coverage configuration which is used to solve the first set of CCO issues.8.The NE of claim 1, wherein if the NE is a central unit (CU) of a base station (BS) and if the one or more neighbour NEs are one or more CUs of one or more neighbour BSs, to detect the occurrence of the first set of CCO issues, the at least one processor is further configured to cause the CU of the BS to:receive, from the one or more CUs of the one or more neighbour BSs, at least one of second information related to a second set of CCO issues detected by the one or more CUs of the one or more neighbour BSs or configuration information which is used to solve the second set of CCO issues; anddetect the occurrence of the first set of CCO issues based on the at least one of the second information or the configuration information which is used to solve the second set of CCO issues.9.The NE of any of claims 3, 4 and 8, wherein the configuration information includes at least one of the following:a cell level coverage configuration;an LP-WUS level coverage configuration; oran LP-SS level coverage configuration.10.The NE of claim 4 or claim 8, wherein the second information includes at least one of the following:information indicating whether the second set of CCO issues is at least one coverage issue or at least one capacity issue;cell global identifier (CGI) information of one or more cells in which the second set of CCO issues is detected;identifier (ID) information of one or more LP-WUSs in which the second set of CCO issues is detected; orID information of one or more LP-SSs in which the second set of CCO issues is detected.11.The NE of claim 4 or claim 8, wherein at least one of the first set of CCO issues or the second set of CCO issues includes at least one of the following:a cell level coverage issue related with LP-WUS or LP-SS;a reference signal level coverage issue related with LP-WUS or LP-SS;a synchronization signal level coverage issue related with LP-WUS or LP-SS;a cell level edge capacity issue related with LP-WUS or LP-SS;a reference signal level edge capacity issue related with LP-WUS or LP-SS; ora synchronization signal level edge capacity issue related with LP-WUS or LP-SS.12.The NE of claim 8, wherein, after detecting the occurrence of the first set of CCO issues, the at least one processor is further configured to cause the CU of the BS to send at least one of the following to one or more distributed units (DUs) of the BS:the first information;the second information; orthe configuration information which is used to solve the second set of CCO issues.13.The NE of claim 12, wherein the at least one processor is further configured to cause the CU of the BS to receive at least one of the following from the one or more DUs of the BS:a first set of modification cause values corresponding to the first set of CCO issues;cell global identifier (CGI) information of one or more cells in which the first set of CCO issues is detected;a cell level coverage configuration which is used to solve the first set of CCO issues;identifier (ID) information of one or more LP-WUSs in which the first set of CCO issues is detected;an LP-WUS level coverage configuration which is used to solve the first set of CCO issues;ID information of one or more LP-SSs in which the first set of CCO issues is detected;an LP-SS level coverage configuration which is used to solve the first set of CCO issues;a second set of modification cause values corresponding to the second set of CCO issues;CGI information of one or more cells in which the second set of CCO issues is detected;a cell level coverage configuration which is used to solve the second set of CCO issues;ID information of one or more LP-WUSs in which the second set of CCO issues is detected;an LP-WUS level coverage configuration which is used to solve the second set of CCO issues;ID information of one or more LP-SSs in which the second set of CCO issues is detected; oran LP-SS level coverage configuration which is used to solve the second set of CCO issues.14.The NE of claim 13, wherein the at least one processor is further configured to cause the CU of the BS to send configuration information including at least one of the following to the one or more CUs of the one or more neighbour BSs:the cell level coverage configuration which is used to solve the first set of CCO issues;the LP-WUS level coverage configuration which is used to solve the first set of CCO issues;the LP-SS level coverage configuration which is used to solve the first set of CCO issues;the cell level coverage configuration which is used to adapt to the configuration information which is used to solve the second set of CCO issues;the LP-WUS level coverage configuration which is used to adapt to the configuration information which is used to solve the second set of CCO issues; orthe LP-SS level coverage configuration which is used to adapt to the configuration information which is used to solve the second set of CCO issues.15.A processor for a network equipment (NE) for wireless communication, comprising:at least one controller coupled with at least one memory and configured to cause the processor to:detect an occurrence of a first set of capacity and coverage optimization (CCO) issues associated with a low power wake up signal (LP-WUS) or a low power synchronization signaling (LP-SS) ; andsend first information related to the first set of CCO issues to one or more neighbour NEs.16.A method performed by a network equipment (NE) for wireless communication, comprising:detecting an occurrence of a first set of capacity and coverage optimization (CCO) issues associated with a low power wake up signal (LP-WUS) or a low power synchronization signaling (LP-SS) ; andsending first information related to the first set of CCO issues to one or more neighbour NEs.
Citation Information
Patent Citations
Ue monitoring for low power wUS
CN119895965A
Methods, devices, and medium for communication
US20250184898A1
Method and apparatus for mode switching operation using low power receiver
WO2025042131A1