Method for paging occasion adaptation
By adapting PO and PEI-O configurations to decouple the number of MOs from SSBs, the method optimizes power consumption in wireless communication systems, addressing inefficiencies in existing paging procedures.
Patent Information
- Application Number
- PCT/CN2024/075516
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-08-07
AI Technical Summary
Existing wireless communication systems face challenges in managing paging occasions (POs) and paging early indication occasions (PEI-Os) to reduce power consumption, as they often require UEs to monitor PDCCH transmissions associated with multiple SSBs, leading to increased power consumption.
Adapting the PO and PEI-O configurations by allowing the number of MOs for PDCCH/PEI-PDCCH to differ from the number of transmitted SSBs, using SSB-specific configurations that associate PDCCH/PEI-PDCCH MOs with a subset of SSBs or multiple SSBs, and enabling dynamic updates to these configurations based on UE capabilities.
This approach reduces power consumption by optimizing the monitoring occasions for paging and PEI transmissions, thereby enhancing battery life in UEs.
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Figure CN2024075516_07082025_PF_FP_ABST
Abstract
Description
METHOD FOR PAGING OCCASION ADAPTATIONTECHNICAL FIELD
[0001] The present disclosure relates generally to wireless communication, and more particularly, to techniques for a wireless communication system to change occasions for a user (UE) to monitor for paging information when a network initiates mobile terminated connection.BACKGROUND
[0002] The Third Generation Partnership Project (3GPP) specifies a radio interface referred to as fifth generation (5G) new radio (NR) (5G NR) . An architecture for a 5G NR wireless communication system includes a 5G core (5GC) network, a 5G radio access network (5G-RAN) , a user equipment (5G UE) , etc. The 5G NR architecture seeks to provide increased data rates, decreased latency, and / or increased capacity compared to prior generation cellular communication systems.
[0003] Wireless communication systems, in general, provide various telecommunication services (e.g., telephony, video, data, messaging, etc. ) based on multiple-access technologies, such as orthogonal frequency division multiple access (OFDMA) technologies, that support communication with multiple UEs. Improvements in mobile broadband continue the progression of such wireless communication technologies. For example, to support mobility and reduce battery power consumption, a UE may transition between different signaling connection states with the network. To restore a signaling connection when a UE is camped on the 5G system in a low power state, the network may initiate a paging procedure using time periods called paging occasions during which the UE may monitor for paging information transmitted by the network. Effective management of paging occasions is critical for system performance under different deployment scenarios.
[0004] BRIEF SUMMARY
[0005] The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects. This summary neither identifies key or critical elements of all aspects nor delineates the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
[0006] The 5G paging procedure allows the network to initiate a mobile terminated connection. A UE, while in the radio resource control (RRC) idle or RRC inactive or RRC connected state, may listen for paging messages during specific paging frames (PFs) and paging occasions (POs) defined by the discontinuous reception (DRX) cycle. The UE may enter a sleep mode between periodic POs and may wake up briefly at the end of each DRX cycle, or a paging cycle when the DRX cycle is not configured, to monitor for paging messages. A network entity may transmit a physical downlink control channel (PDCCH) for paging in a paging search space (e.g., pagingSearchSpace) . The network entity may transmit the PDCCH for paging based on a paging radio network temporary identifier (P-RNTI) during a PO within a PF. The UE and network entity may remain synchronized while the UE is in the RRC idle or RRC inactive state to ensure that the network entity broadcasts paging messages when the UE is monitoring for them. The PDCCH may carry downlink control information (DCI) for scheduling physical downlink shared channel (PDSCH) resources for a paging message.
[0007] The UE may determine the system frame number (SFN) for the PF as: (SFN + PF_offset) mod T = (T div N) * (UE_ID mod N) (Eq. 1)
[0008] where T is the DRX cycle or paging cycle duration in radio frames, PF_offset is a time domain offset in terms of radio frames, N is the total number of paging frames during each DRX cycle or paging cycle, and UE_ID indicates the S-temporary mobile subscription identifier (S-TMSI) mod 1024. T, PF_offset, and N, may be configured by the network entity using information broadcast in system information block 1 (SIB1) or other RRC messages, e.g., RRCReconfiguration. In one example, T is configured by the defaultPagingCycle parameter; PF_offset and N are collectively configured by the nAndPagingFrameOffset parameter using the PCCH-Config parameter structure within SIB1 or RRCReconfiguration. The S-TMSI (e.g., 5G-S-TMSI) may be provided by the core network.
[0009] After identifying the PF, the UE may identify its PO (s) within the PF. There may be multiple candidate POs per PF (e.g., configured by the Ns parameter (indicating the number of POs per PF) in the PCCH-Config parameter structure) . A single PO may include PDCCH monitoring occasions (MOs) for one or more beams. The PDCCH MOs for paging (may also be referred to as paging PDCCH MOs) may be determined according to the paging search space and the configured first PDCCH MO for each of the Ns POs (e.g., first PDCCH-MonitoringOccasionOfPO parameter in the PCCH-Config parameter structure) .
[0010] PDCCH transmissions for paging may share the same search space as PDCCH transmissions for SIB1, which may be associated with the synchronization signal / physical broadcast channel (SS / PBCH) blocks (referred to as synchronization signal blocks (SSBs) ) . Thus, within a PO, there may be K PDCCH MOs where each MO is associated with one of K actually transmitted SSBs, respectively. The network entity may transmit the SSBs as configured by an RRC parameter (e.g., ssb-PositionsInburst) . For example, there may be two POs in a PF (e.g., Ns=2) , where within each PO three PDCCH MOs for paging are one-to-one associated with three actually transmitted SSBs. The demodulation reference signal (DMRS) of the PDCCH in each MO may be quasi-co-located (QCLed) with the associated SSB based on at least one of the channel parameters {average delay, delay spread, Doppler spread, Doppler shift, spatial reception filter, average gain} .
[0011] For UE power saving, the network entity may transmit a PDCCH based on paging early indication RNTI (PEI-RNTI) to indicate whether the network entity will be transmitting a PDCCH for paging in one or multiple POs. The network entity may configure the number of POs associated with one paging early indication (PEI) MO by a RRC parameter (e.g., po-NumPerPEI) . One PEI may be associated with one or multiple PFs (e.g., up to 2 PFs) . The network entity may transmit the PDCCH for the PEI (PEI-PDCCH) in a PEI search space (PEI-SS) (e.g., pei-SearchSpace) . If the network entity configures the search space ID for the PEI-SS as 0, the network entity and UE may determine the MOs of the PEI-SS based on the MOs for the PDCCH scheduling SIB1; otherwise, the network entity and the UE may determine the MOs of the PEI-SS based on the PEI occasions (PEI-Os) , which are similar to the MOs of a PO. The network entity may configure the PEI frame (PEI-F) by configuring a PEI frame offset based on an RRC parameter (e.g., pei-FrameOffset) from the start of the first PF of the PF (s) associated with the PEI-O. The network entity may configure PEI-Os within the PEI-F based on an RRC parameter (firstPDCCH-MonitoringOccasionOfPEI-O) . The network entity and UE may identify multiple MOs for the PEI-PDCCH within a PEI-O. Similar to the PDCCH MOs for the PO of the PF, the PEI-PDCCH MOs for the PEI-O of the PEI-F are one-to-one associated with the actually transmitted SSBs. For example, there may be one PEI-O in a PEI-F (e.g., only one value is configured by firstPDCCH-MonitoringOccasionOfPEI-O) , where within the PEI-O three PEI-PDCCH MOs are one-to-one associated with three actually transmitted SSBs.
[0012] The PEI-PDCCH may also indicate the availability of a tracking reference signal (TRS) set, where the TRS in the set is QCLed with the SSBs associated with the PEI-PDCCH MOs. In one example, a TRS set is a Channel State Information Reference Signal (CSI-RS) resource set for tracking (e.g., with parameter trs-Info configured) . The UE may perform QCL parameter measurements based on the TRS instead of the SSB associated with a paging PDCCH MO to receive the PDCCH for paging if the TRS associated with the paging PDCCH MO is available. Then the UE may receive the PDCCH for paging in the paging PDCCH MO and PDSCH for paging scheduled by the PDCCH for paging based on the measured QCL parameter.
[0013] When determining to transmit a PDCCH for PEI or for paging, the network entity may have to transmit the PDCCH for PEI or paging in multiple MOs associated with the different SSBs by different beams. As a result, in one PF, the network entity may have to transmit K*Ns PDCCHs for paging, where K indicates the number of actually transmitted SSBs and Ns indicates the number of POs in a PF. Similarly, in one PEI-F, the network entity may have to transmit K*Ns, PEI PDCCHs for PEI, where Ns, PEI indicates the number of PEI-Os in a PEI-F. However, transmitting the PDCCHs for PEI or paging in multiple MOs associated with the different SSBs increases power consumption of the network entity. It is desirable to reduce power consumption for paging and PEI transmissions.
[0014] An aspect of the present disclosure adapts the PO configuration for paging transmissions and the PEI-O configuration for PEI transmissions so the number of MOs for the PDCCH for paging (paging-PDCCH) in a PO, or the number of MOs for the PEI-PDCCH in a PEI-O, may be different from the number of transmitted SSBs associated with the PO or PEI-O. Techniques to adapt the PO or PEI-O may include SSB-specific PO / PEI-O configuration that configures the UE to monitor the paging PDCCH / PEI-PDCCH during MOs that are associated with a subset of the transmitted SSBs. In one embodiment, the SSB-specific PO / PEI-O configuration may configure separate POs / PEI-Os for different groups of transmitted SSBs. Techniques to adapt the PO or PEI-O may also include configuring a paging-PDCCH / PEI-PDCCH MO to be associated with multiple transmitted SSBs. The DMRS of the paging-PDCCH / PEI-PDCCH in the MO for paging / PEI may be QCLed with the multiple transmitted SSBs. In one embodiment, the PEI-PDCCH may indicate the availability of one or more TRS set that are QCLed with the multiple transmitted SSBs associated with the paging-PDCCH.
[0015] In another aspect of the present disclosure, the network entity may dynamically update the SSB-specific PO / PEI-O configuration such as a subset of the transmitted SSBs associated with the MOs used to monitor the paging-PDCCH / PEI-PDCCH, or the groups of transmitted SSBs configured for the separate POs / PEI-Os. In one embodiment, the network entity may dynamically update the multiple transmitted SSBs associated with a paging-PDCCH / PEI-PDCCH MO (may also be collectively referred to as PDCCH MO) . In one embodiment, the network entity may update the SSB pattern such as the pattern of the transmitted SSBs, periodicities of the transmitted SSBs, etc. The UE may update the paging-PDCCH / PEI-PDCCH MOs for paging / PEI based on the updated SSB pattern. In one embodiment, the UE may report to the network entity UE’s capability for supporting adapting the PO or PEI-O configuration so the network entity may use the UE capability information when initializing or updating the configuration. In one embodiment, after receiving the paging-PDCCH or the PEI-PDCCH, the UE may further communicate with the network entity to receive a paging message, to receive a TRS set associated with the paging-PDCCH, or to monitor the PDCCH for paging in the POs associated with the PEI.
[0016] According to some aspects, a UE receives, from a network entity, control signaling configuring one or more MOs for monitoring paging control information in at least one of a PO or a PEI-O. A number of MOs is different from a number of transmitted SSBs in the at least one PO or PEI-O. The UE, receives, from the network entity, the paging control information during the one or more MOs in the at least one PO or PEI-O.
[0017] According to some aspects, a network entity transmits, to a UE, control signaling configuring one or more MOs for UE monitoring of paging control information in at least one of a PO or a PEI-O. A number of MOs is different from a number of transmitted SSBs in the at least one PO or PEI-O. The network entity transmits, to the UE, the paging control information during the one or more MOs in the at least one PO or PEI-O.BRIEF DESCRIPTION OF THE DRAWINGS
[0018] FIG. 1 illustrates a diagram of a wireless communications system that includes a plurality of user equipment (UEs) and network entities in communication over one or more cells according to an embodiment.
[0019] FIG. 2 illustrates a diagram illustrating communications between a UE and a network entity for adapting a PO configuration or a PEI-O configuration PEI according to an embodiment.
[0020] FIG. 3 illustrates an example of SSB-specific PO / PEI-O configuration according to an embodiment.
[0021] FIG. 4 illustrates an example of separate groupings of SSBs for PO / PEI-O configuration according to an embodiment.
[0022] FIG. 5 illustrates an example of a PDCCH MO for paging / PEI associated with multiple SSBs according to an embodiment.
[0023] FIG. 6 illustrates an example of PDCCH monitoring based on the actually transmitted SSBs for each PO / PEI-O according to an embodiment.
[0024] FIG. 7 illustrates an example of PDCCH monitoring in a PO / PEI-O based on the actually transmitted SSBs in a serving cell or bandwidth part according to an embodiment.
[0025] FIG. 8 illustrates an example of PDCCH MOs for paging / PEI based on a minimum SSB periodicity when the periodicities are different for different SSBs.
[0026] FIG. 9 illustrates an example of PDCCH MOs for paging / PEI based on a maximum SSB periodicity when the periodicities are different for different SSBs.
[0027] FIG. 10 illustrates an example for a dynamic update of PO / PEI-O configuration based on an effective window.
[0028] FIG. 11 is a flow diagram of a method of wireless communication at a UE for adapting the PO for monitoring paging information according to an embodiment.
[0029] FIG. 12 is a flow diagram of a method of wireless communication at a network entity for adapting the PO for monitoring paging information according to an embodiment.
[0030] FIG. 13 is a diagram illustrating an example of a hardware implementation for a UE apparatus to support adapting the PO for monitoring paging information according to an embodiment.
[0031] FIG. 14 is a diagram illustrating an example of a hardware implementation for one or more network entities to support adapting the PO for monitoring paging information according to an embodiment.DETAILED DESCRIPTION
[0032] FIG. 1 illustrates a diagram 100 of a wireless communications system associated with a plurality of cells 190 according to one embodiment. The wireless communications system includes user equipment (UEs) 102 and base stations / network entities 104. Some base stations may include an aggregated base station architecture and other base stations may include a disaggregated base station architecture. The aggregated base station architecture utilizes a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node. A disaggregated base station architecture utilizes a protocol stack that is physically or logically distributed among two or more units (e.g., radio unit (RU) 106, distributed unit (DU) 108, central unit (CU) 110) . For example, a CU 110 is implemented within a RAN node, and one or more DUs 108 may be co-located with the CU 110, or alternatively, may be geographically or virtually distributed throughout one or multiple other RAN nodes. The DUs 108 may be implemented to communicate with one or more RUs 106. Any of the RU 106, the DU 108 and the CU 110 can be implemented as virtual units, such as a virtual radio unit (VRU) , a virtual distributed unit (VDU) , or a virtual central unit (VCU) . The base station / network entity 104 (e.g., an aggregated base station or disaggregated units of the base station, such as the RU 106 or the DU 108) , may be referred to as a transmission reception point (TRP) .
[0033] Operations of the base station 104 and / or network designs may be based on aggregation characteristics of base station functionality. For example, disaggregated base station architectures are utilized in an integrated access backhaul (IAB) network, an open-radio access network (O-RAN) network, or a virtualized radio access network (vRAN) , which may also be referred to a cloud radio access network (C-RAN) . Disaggregation may include distributing functionality across the two or more units at various physical locations, as well as distributing functionality for at least one unit virtually, which can enable flexibility in network designs. The various units of the disaggregated base station architecture, or the disaggregated RAN architecture, can be configured for wired or wireless communication with at least one other unit. For example, the base stations 104d, 104e and / or the RUs 106a, 106b, 106c, 106d may communicate with the UEs 102a, 102b, 102c, 102d, and / or 102s via one or more radio frequency (RF) access links based on a Uu interface. In examples, multiple RUs 106 and / or base stations 104 may simultaneously serve the UEs 102, such as by intra-cell and / or inter-cell access links between the UEs 102 and the RUs 106 / base stations 104.
[0034] The RU 106, the DU 108, and the CU 110 may include (or may be coupled to) one or more interfaces configured to transmit or receive information / signals via a wired or wireless transmission medium. For example, a wired interface can be configured to transmit or receive the information / signals over a wired transmission medium, such as via the fronthaul link 160 between the RU 106d and the baseband unit (BBU) 112 of the base station 104d associated with the cell 190d. The BBU 112 includes a DU 108 and a CU 110, which may also have a wired interface (e.g., midhaul link) configured between the DU 108 and the CU 110 to transmit or receive the information / signals between the DU 108 and the CU 110. In further examples, a wireless interface, which may include a receiver, a transmitter, or a transceiver, such as an RF transceiver, configured to transmit and / or receive the information / signals via the wireless transmission medium, such as for information communicated between the RU 106a of the cell 190a and the base station 104e of the cell 190e via cross-cell communication beams 136-138 of the RU 106a and the base station 104e.
[0035] The RUs 106 may be configured to implement lower layer functionality. For example, the RU 106 is controlled by the DU 108 and may correspond to a logical node that hosts RF processing functions, or lower layer PHY functionality, such as execution of fast Fourier transform (FFT) , inverse FFT (iFFT) , digital beamforming, physical random access channel (PRACH) extraction and filtering, etc. The functionality of the RU 106 may be based on the functional split, such as a functional split of lower layers.
[0036] The RUs 106 may transmit or receive over-the-air (OTA) communication with one or more UEs 102. For example, the RU 106b of the cell 190b communicates with the UE 102b of the cell 190b via a first set of communication beams 132 of the RU 106b and a second set of communication beams 134b of the UE 102b, which may correspond to inter-cell communication beams or, in some examples, cross-cell communication beams. For instance, the UE 102b of the cell 190b may communicate with the RU 106a of the cell 190a via a third set of communication beams 134a of the UE 102b and a fourth set of communication beams 136 of the RU 106a. DUs 108 can control both real-time and non-real-time features of control plane and user plane communications of the RUs 106.
[0037] Any combination of the RU 106, the DU 108, and the CU 110, or reference thereto individually, may correspond to a base station 104. Thus, the base station 104 may include at least one of the RU 106, the DU 108, or the CU 110. The base stations 104 provide the UEs 102 with access to a core network. The base stations 104 may relay communications between the UEs 102 and the core network (not shown) . The base stations 104 may be associated with macrocells for higher-power cellular base stations and / or small cells for lower-power cellular base stations. For example, the cell 190e may correspond to a macrocell, whereas the cells 190a-190d may correspond to small cells. Small cells include femtocells, picocells, microcells, etc. A network that includes at least one macrocell and at least one small cell may be referred to as a “heterogeneous network. ”
[0038] Transmissions from a UE 102 to a base station 104 / RU 106 are referred to as uplink (UL) transmissions, whereas transmissions from the base station 104 / RU 106 to the UE 102 are referred to as downlink (DL) transmissions. Uplink transmissions may also be referred to as reverse link transmissions and downlink transmissions may also be referred to as forward link transmissions. For example, the RU 106d utilizes antennas of the base station 104d of cell 190d to transmit a downlink / forward link communication to the UE 102d or receive an uplink / reverse link communication from the UE 102d based on the Uu interface associated with the access link between the UE 102d and the base station 104d / RU 106d.
[0039] Communication links between the UEs 102 and the base stations 104 / RUs 106 may be based on multiple-input and multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. The communication links may be associated with one or more carriers. The UEs 102 and the base stations 104 / RUs 106 may utilize a spectrum bandwidth of Y MHz (e.g., 5, 10, 15, 20, 100, 400, 800, 1600, 2000, etc. MHz) per carrier allocated in a carrier aggregation of up to a total of Yx MHz, where x component carriers (CCs) are used for communication in each of the uplink and downlink directions. The carriers may or may not be adjacent to each other along a frequency spectrum. In examples, uplink and downlink carriers may be allocated in an asymmetric manner, with more or fewer carriers allocated to either the uplink or the downlink. A primary component carrier and one or more secondary component carriers may be included in the component carriers. The primary component carrier may be associated with a primary cell (PCell) and a secondary component carrier may be associated with a secondary cell (SCell) .
[0040] Some UEs 102, such as the UEs 102a and 102s, may perform device-to-device (D2D) communications over sidelink. For example, a sidelink communication / D2D link utilizes a spectrum for a wireless wide area network (WWAN) associated with uplink and downlink communications. Such sidelink / D2D communication may be performed through various wireless communications systems, such as wireless fidelity (Wi-Fi) systems, Bluetooth systems, Long Term Evolution (LTE) systems, New Radio (NR) systems, etc.
[0041] The UEs 102 and the base stations 104 / RUs 106 may each include a plurality of antennas. The plurality of antennas may correspond to antenna elements, antenna panels, and / or antenna arrays that may facilitate beamforming operations. For example, the RU 106b transmits a downlink beamformed signal based on a first set of communication beams 132 to the UE 102b in one or more transmit directions of the RU 106b. The UE 102b may receive the downlink beamformed signal based on a second set of communication beams 134b from the RU 106b in one or more receive directions of the UE 102b. In a further example, the UE 102b may also transmit an uplink beamformed signal (e.g., sounding reference signal (SRS) ) to the RU 106b based on the second set of communication beams 134b in one or more transmit directions of the UE 102b. The RU 106b may receive the uplink beamformed signal from the UE 102b in one or more receive directions of the RU 106b. The UE 102b may perform beam training to determine the best receive and transmit directions for the beamformed signals. The transmit and receive directions for the UEs 102 and the base stations 104 / RUs 106 may or may not be the same.
[0042] In further examples, beamformed signals may be communicated between a first base station / RU 106a and a second base station 104e. For instance, the base station 104e of the cell 190e may transmit a beamformed signal to the RU 106a based on the communication beams 138 in one or more transmit directions of the base station 104e. The RU 106a may receive the beamformed signal from the base station 104e of the cell 190e based on the RU communication beams 136 in one or more receive directions of the RU 106a. In further examples, the base station 104e transmits a downlink beamformed signal to the UE 102e based on the communication beams 138 in one or more transmit directions of the base station 104e. The UE 102e receives the downlink beamformed signal from the base station 104e based on UE communication beams 130 in one or more receive directions of the UE 102e. The UE 102e may also transmit an uplink beamformed signal to the base station 104e based on the UE communication beams 130 in one or more transmit directions of the UE 102e, such that the base station 104e may receive the uplink beamformed signal from the UE 102e in one or more receive directions of the base station 104e.
[0043] The base station 104 may include and / or be referred to as a network entity. That is, “network entity” may refer to the base station 104 or at least one unit of the base station 104, such as the RU 106, the DU 108, and / or the CU 110. The base station 104 may also include and / or be referred to as a next generation evolved Node B (ng-eNB) , a next generation NB (gNB) , an evolved NB (eNB) , an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS) , an extended service set (ESS) , a TRP, a network node, network equipment, or other related terminology. The base station 104 or an entity at the base station 104 can be implemented as an IAB node, a relay node, a sidelink node, an aggregated (monolithic) base station, or a disaggregated base station including one or more RUs 106, DUs 108, and / or CUs 110. A set of aggregated or disaggregated base stations may be referred to as a next generation-radio access network (NG-RAN) . In some examples, the UE 102a operates in dual connectivity (DC) with the base station 104e and the base station / RU 106a. In such cases, the base station 104e can be a master node and the base station / RU 160a can be a secondary node.
[0044] Still referring to FIG. 1, in certain aspects, any of the UEs 102 may include a paging occasion / paging early indication occasion (PO / PEI-O) adaptation monitoring component 140 configured to receive and determine changes to the association between monitoring occasions (MOs) for paging / PEI and synchronization signal blocks (SSBs) in a PO / PEI-O. The PO / PEI-O adaptation monitoring component 140 may receive from the base station / network entity 104 a control signaling configuring one or more MOs for monitoring paging control information in at least one of a PO or a PEI-O. The number of the MOs may be different from the number of transmitted SSBs in the at least one PO or PEI-O. The PO / PEI-O adaptation monitoring component 140 may receive from the base station / network entity 104 the paging control information during the one or more MOs in the at least one PO or PEI-O.
[0045] In certain aspects, any of the base stations 104 or a network entity of the base stations 104 may include a PO / PEI-O adaptation configuration component 150 configured to transmit and support changes to the association between MOs for paging / PEI and the SSBs in a PO / PEI-O. The PO / PEI-O adaptation configuration component 150 may transmit to any of the UEs 102 a control signaling configuring one or more MOs for UE monitoring of paging control information in at least one of a PO or a PEI-O. The number of the MOs may be different from the number of transmitted SSBs in the at least one PO or PEI-O. The PO / PEI-O adaptation configuration component 150 may transmit to any of the UEs 102 the paging control information during the one or more MOs in the at least one PO or PEI-O.
[0046] Accordingly, FIG. 1 describes a wireless communication system that may be implemented in connection with aspects of one or more other figures described herein. Further, although the following description may be focused on 5G NR, the concepts described herein may be applicable to other similar areas, such as 5G-Advanced and future versions, LTE, LTE-advanced (LTE-A) , and other wireless technologies, such as 6G.
[0047] The UE 102 may operate in different radio resource control (RRC) states having various levels of signaling connections with the base station 104. For example, in the RRC idle state, the UE 102 may camp on a cell to receive system information on the broadcast control channel from the base station 104 without maintaining a signaling connection with the base station 104 and the network. In the RRC inactive state, the UE 102 may maintain signaling connection with the base station in a low power state without monitoring control channels for resource allocation for application data or signaling message transfers. The UE 102 may listen for paging messages while in the RRC idle or RRC inactive or RRC active state. Paging messages allow the network to initiate mobile terminated connections. For example, the core network may be responsible for RRC idle paging procedure, whereas the serving base station 104 may be responsible for RRC inactive paging procedure.
[0048] While in the RRC idle state, the UE 102 may use discontinuous reception (DRX) to conserve UE battery life. The UE 102 may enter a sleep mode between periodic POs. The base station 104 may schedule paging frames (PFs) and POs for broadcasting paging messages. The base station may use DCI format 1_0 in a PDCCH transmission to allocate PDSCH resources for a paging message. For paging early indication (PEI) , the base station 104 may use DCI format 2_7 in a PEI-PDCCH transmission to indicate whether the base station 104 will be transmitting a PDCCH for paging in one or more POs.
[0049] The UE 102 may determine its PFs and POs using a combination of information broadcast in SIB1 or other RRC message, e.g., RRCReconfiguration, and its allocated S-temporary mobile subscription identifier (S-TMSI) . At each PO, the UE 102 may scan for the paging-PDCCH transmission that has its cyclic redundancy check (CRC) scrambled by the paging radio network temporary identifier (P-RNTI) or scan for the PEI-PDCCH transmission that has its CRC scrambled by paging early indication RNTI (PEI-RNTI) .
[0050] The base station 104 may use multiple beams to provide coverage across a cell area for paging. A PO may include monitoring occasions (MOs) to allow the UE 102 to scan all beams. For example, when determining to transmit a PDCCH for PEI (PEI-PDCCH) or PDCCH for paging (paging-PDCCH) , the base station 104 may transmit the PEI-PDCCH or paging-PDCCH in multiple MOs associated with different SSBs by different beams.
[0051] Aspects of the present disclosure adapt the POs for paging and the PEI occasions (PEI-Os) so the MOs for the paging-PDCCH and for the PEI-PDCCH may not have a one-to-one correspondence with the SSBs in a PO / PEI-O. In one embodiment, the PO or PEI-O may include SSB-specific PO / PEI-O configuration that configures the UE to monitor the paging-PDCCH / PEI-PDCCH during MOs that are associated with a subset of the SSBs. In one embodiment, the SSB-specific PO / PEI-O configuration may configure separate POs / PEI-Os for different groups of SSBs. In one embodiment, a paging-PDCCH / PEI-PDCCH MO (may also be collectively referred to as PDCCH MO) may be associated with multiple SSBs. In one embodiment, the base station 104 may dynamically update the PO / PEI-O configuration. In one embodiment, the base station 104 may dynamically update the SSB pattern such as the transmitted SSBs or the periodicities of the SSBs in the PO / PEI-O.
[0052] FIG. 2 illustrates a diagram illustrating communications between a UE 102 and a network entity 104 for adapting a PO configuration or a PEI-O configuration according to an embodiment. The network entity 104 may correspond to a base station or a unit of a base station, such as the RU 106, the DU 108, the CU 110, etc.
[0053] The UE 102 may optionally transmit 202, to the network entity 104, (or the network entity 104 may receive 202 from the UE 102) , UE’s capability on supported configuration for PO / PEI-O adaptation, including supported configuration for associating PDCCH MOs in a PO or a PEI-O (PO / PEI-O) with SSBs in the PO / PEI-O. In one embodiment, the UE 102 may report at least one of the following capabilities: whether the UE 102 supports SSB-specific PO configuration; whether the UE 102 supports one MO of a PO associated with multiple SSBs; whether the UE 102 supports dynamic update of PO configuration; whether the UE 102 supports SSB-specific PEI-O configuration; whether the UE 102 supports one MO of a PEI-O associated with multiple SSBs; whether the UE 102 supports dynamic update of PEI-O configuration.
[0054] Based on the UE capability, the network entity 104 may transmit 204, to the UE 102 (or the UE 102 may receive 204 from the network entity 104) , control signaling configuring one or more PDCCH MOs in a PO or a PEI-O. The control signaling may configure an association between the PDCCH MOs and the transmitted SSBs in the PO / PEI-O including at least one of: the PDCCH MOs associated with a subset of the SSBs in the PO / PEI-O, separate groupings of the SSBs for separate POs containing the PDCCH MOs, a PDCCH MO associated with a plurality of the SSBs in the PO / PEI-O, dynamic updating of the association between the PDCCH MOs and the SSBs in the PO / PEI-O, etc.
[0055] In on embodiment, the network entity 104 may configure at least one of the followings: PDCCH MO (s) in a PO / PEI-O; first PDCCH MO (s) of POs for a first group of SSBs; second PDCCH MO (s) of POs for a second group of SSBs; first PDCCH MO (s) of PEI-Os for a third group of SSBs; second PDCCH MO (s) of PEI-Os for a fourth group of SSBs; configuration of each SSB groups (e.g., SSB index for each SSB group) ; association between PDCCH MO (s) for PO / PEI-O and SSBs (e.g., number of SSBs per PDCCH MO, and / or associated PDCCH MO for one or multiple SSBs) ; configuration of dynamic update of PO / PEI-O. In one embodiment, if the network entity 104 configures more SSB groups, the network entity 104 may configure more PDCCH MOs for the PO / PEI-O, where each PDCCH MO is associated with one or multiple SSBs within each group of SSBs. In one embodiment, configuration of the dynamic update of PO / PEI-O may include a parameter enabling the dynamic update, an RNTI for the control signaling (e.g., DCI) , etc. The network entity 104 may transmit the control signaling by RRC signaling, e.g., RRCReconfiguration, master information block (MIB) , or system information block (SIB) .
[0056] The network entity 104 may optionally transmit 206, to the UE 102 (or the UE 102 may optionally receive 206 from the network entity 104) , control signaling configuring an update to the association between the PDCCH MOs and the SSBs in one or more POs / PEI-Os. For example, the network entity 104 may transmit a control signaling to dynamically update the configuration for one or multiple POs or PEI-Os in a PF / PEI-F. In one embodiment, the network entity 104 may update the periodicity for one of or a subset of or all the SSBs. Then the UE 102 may further determine the POs / PEI-Os based on the updated periodicity for the SSBs. The network 104 may transmit the control signaling to update the association between the PDCCH MOs and the SSBs in one or more POs / PEI-Os by an RRC message, a medium access control (MAC) control element (CE) , or DCI.
[0057] The UE 102 may optionally transmit 208, to the network entity 104 (or the network entity 104 may optionally receive 208 from the UE 102) , an acknowledgement (ACK) and / or a non-acknowledgement (NACK) in response to the control signaling for dynamic update of the configuration for one or multiple POs / PEI-Os. The UE 102 may transmit the ACK / NACK by ACK only, NACK only or ACK / NACK mechanism.
[0058] The network entity 104 may transmit 210, to the UE 102 (or the UE 102 may receive 210 from the network entity 104) , PDCCH transmissions in one or more of the configured MOs in one or more POs / PEI-Os. In one embodiment, after the action time of the control signaling for dynamic update of the PO / PEI-O or SSBs, the UE 102 and network entity 104 may further apply the new configuration. The UE 102 may monitor the PDCCH for paging (paging-PDCCH) or PDCCH for PEI (PEI-PDCCH) on the PDCCH MO for paging or PEI based on the initial configuration or an updated configuration of the PO / PEI-O.
[0059] The network entity 104 may transmit 212, to the UE 102 (or the UE 102 may receive 212 from the network entity 104) , further communication based on the DCI of the PDCCH transmission. For example, after receiving the paging-PDCCH or PEI-PDCCH, the UE 102 may optionally communicate with the network entity 104 to receive the PDSCH for the paging message, to receive the TRS, or determine whether to monitor the PDCCH for paging in the POs associated with the PEI.
[0060] In one aspect of the PO / PEI-O adaptation, the PO or PEI-O may include SSB-specific PO / PEI-O configuration. In one embodiment of the SSB-specific PO / PEI-O configuration, the network entity 104 may configure the monitored PDCCH MOs per PO / PEI-O by RRC signaling. For example, the network entity 104 may configure the monitored PDCCH MOs based on the candidate PDCCH MOs associated with all actually transmitted SSBs. The network entity 104 may provide the configuration by a K bits bitmap (K corresponds to the number of SSBs actually transmitted) , where the first state of bit x may indicate that the UE 102 does not need to monitor the PDCCH MO x associated with the actually transmitted SSB x corresponding to the configured PO / PEI-O for paging-PDCCH or PEI-PDCCH, and the second state of bit x may indicate that the UE 102 should monitor the PDCCH MO x associated with the actually transmitted SSB x corresponding to the configured PO / PEI-O for paging-PDCCH or PEI-PDCCH.
[0061] In one embodiment, the network entity 104 may configure the monitored PDCCH MOs based on the candidate PDCCH MOs associated with all SSBs regardless of whether the SSBs are transmitted or not. The network entity 104 may provide the configuration by a N bits bitmap (N corresponds to the number of SSBs predefined for the band, which may or may not be actually transmitted) , where the first state of bit x may indicate that the UE 102 does not need to monitor the PDCCH MO x associated with the SSB x corresponding to the configured PO / PEI-O for paging-PDCCH or PEI-PDCCH, and the second state of bit x may indicate that the UE 102 should monitor the PDCCH MO x associated with the SSB x corresponding to the configured PO / PEI-O for paging-PDCCH or PEI-PDCCH.
[0062] FIG. 3 illustrates an example 300 of SSB-specific PO / PEI-O configuration according to an embodiment. As previously noted, the UE 102 may determine the SFN 315 for a PF or PEI-F using Eq. 1. FIG. 3 shows radio frames indexed by SFN 310 where SFN 1 (321) is a PF / PEI-F during which the UE 102 may monitor for paging information (may also be referred to as paging control information) . During SFN 0 (320) and SFN 2 (322) , the UE 102 does not monitor for paging information. The paging information may refer to a PDCCH for paging (paging-PDCCH) on the MOs in a PO and PDCCH for PEI (PEI-PDCCH) on the MOs in a PEI-O.
[0063] The PF / PEI-F of SFN 1 (321) may have multiple candidate POs 330 (or PEI-Os) , such as PO1 (341) , PO2 (342) , PO3 (343) , and PO4 (344) . Different candidate POs / PEI-Os may correspond to different MOs. The MOs for different candidate POs could be partially overlapped or orthogonal. A population of UEs may be divided into groups such that each group of UEs monitors a different PO (or PEI-Os) . The UE 102 may identify one or more of its configured POs as: POindex = FLOOR (UE_ID / N) mod Ns (Eq. 2)
[0064] where POindex is the PO index, N is the total number of paging frames during each DRX cycle or paging cycle, UE_ID indicates the S-temporary mobile subscription identifier (S-TMSI) mod 1024, and Ns is the number of POs per PF. FIG. 3 shows that the UE 102 identifies PO2 (342) and PO4 (344) (may also be PEI-Os) during which the UE 102 may monitor for paging (or PEI) within its PF / PEI-F.
[0065] A single PO may include multiple candidate PDCCH MOs 350 for paging or PEI based on actually transmitted SSBs. In one embodiment, each of the multiple candidate PDCCH MOs 350 for paging or PEI may be associated with each one of a predefined set of SSBs, some of which may be actually transmitted SSBs and some may not. For example, within PO2 (342) , candidate MO 2-1 (360) may be associated with SSB0, candidate MO 2-2 (361) may be associated with SSB1, candidate MO 2-3 (362) may be associated with SSB2, and candidate MO 2-4 (363) may be associated with SSB 3. The actually transmitted SSBs may be configured by an RRC parameter, e.g., ssb-PositionsInBurst. FIG. 3 shows that SSBs 0, 1, and 3 (SSB0, SSB1, and SSB3) are actually transmitted as identified by the SSB positions in the burst {1, 1, 0, 1} (375) .
[0066] The SSB-specific PO / PEI-O configuration may configure a subset of the candidate PDCCH MOs 350 associated with the actually transmitted SSBs for paging or PEI. For example, the network entity 104 may provide the configuration by a bitmap corresponding to the number of actually transmitted SSBs, where the values of the bit map {1, 0, 1} (335) indicates the UE 102 may monitor the PDCCH MO associated with the first and third actually transmitted SSBs. Because the actually transmitted SSBs are SSB0, SSB1, and SSB3 as identified by the SSB positions in the burst {1, 1, 0, 1} (375) , the PDCCH MOs (370) configured for PDCCH monitoring for paging / PEI are MO 2-1 (380) associated with SSB0 and MO 2-4 (383) associated with SSB3. The UE 102 may then monitor a PDCCH transmission for paging or PEI (paging-PDCCH or PEI-PDCCH) during MO 2-1 (380) and MO 2-4 (383) in PO2 (342) within PF / PEI-F (SFN 1 (321) ) and refrain from monitoring a PDCCH transmission during candidate MO 2-2 (361) and candidate MO 2-3 (362) .
[0067] In one embodiment, the network entity 104 may configure the number of SSBs per PO / PEI-O. Then the network entity 104 and UE 102 may determine the PDCCH MOs and associated SSB index (es) based on the number of SSBs per PO / PEI-O, number of actually transmitted SSBs, and PO / PEI-O index. In one example, the network entity 104 and UE 102 may determine to monitor the PDCCH for paging / PEI on the first X PDCCH MOs associated with the first X actually transmitted SSBs in the first PO / PEI-O within the PF / PEI-F, and monitor the PDCCH for paging / PEI on the next X PDCCH MOs associated with the next X actually transmitted SSBs in the second PO / PEI-O within the PF / PEI-F, and so on.
[0068] In one embodiment, the network entity 104 may configure whether to enable the partial PDCCH MOs for paging / PEI. If it is enabled, the network entity 104 and UE 102 may determine the number of SSBs per PO / PEI-O as K / Ns or K / Ns, PEI respectively, where K indicates the number of actually transmitted SSBs, Ns indicates the number of POs in a PF, and Ns, PEI indicates the number of PEI-Os in a PEI-F; otherwise, the network entity 104 and UE 102 may determine the number of SSBs per PO / PEI-O as K. In one embodiment, if the number of actually transmitted SSBs is not equal to the number of POs / PEI-Os or a multiple of the number of POs / PEI-Os in a PO / PEI-O, when the partial PDCCH MOs for paging / PEI is enabled, the network entity 104 and UE 102 may determine one of the POs / PEI-Os, e.g., the first or last PO / PEI-O, may include K –floor (K / Ns) *Ns or K –floor (K / Ns, PEI) *Ns, PEI PDCCH MOs for paging or PEI, respectively, and the other POs / PEI-Os may include floor (K / Ns) or floor (K / Ns, PEI) PDCCH MOs for paging or PEI, respectively.
[0069] In another embodiment of the SSB-specific PO / PEI-O configuration, there may be PO / PEI-O configuration per SSB group. For example, the network entity 104 may configure separate POs / PEI-Os for different group of SSBs. The network entity 104 may further configure the SSBs in each group based on the actually transmitted SSBs by RRC signaling. In one embodiment, the network entity 104 may further update the SSBs in each group by MAC CE or DCI. Each group may be orthogonal or partially overlap with another group. Each group may include one or multiple SSBs.
[0070] In one embodiment, the network entity 104 may configure multiple firstPDCCH-MonitoringOccasionOfPO, where each firstPDCCH-MonitoringOccasionOfPO corresponds to the first PDCCH MO for each group of SSBs associated with the PO. In another example, the network entity 104 may configure multiple firstPDCCH-MonitoringOccasionOfPEI-O, where each firstPDCCH-MonitoringOccasionOfPEI-O corresponds to the first PEI-PDCCH MO for each group of SSBs associated with the PEI-O.
[0071] FIG. 4 illustrates an example 400 of separate groupings of SSBs for PO / PEI-O configuration according to an embodiment. The UE 102 may determine the SFN 415 for a PF or PEI-F within a DRX cycle or paging cycle. FIG. 4 shows radio frames indexed by SFN 410 in a DRX cycle or paging cycle where SFN 1 (421) is a PF / PEI-F during which the UE 102 may monitor for paging information. During SFN 0 (420) and SFN 2 (422) , the UE 102 does not monitor for paging information.
[0072] Within the PF / PEI-F of SFN 1 (421) , there are multiple candidate POs 430 (or PEI-Os) (e.g., PO1 (441) , PO2 (442) , PO3 (443) , and PO4 (444) ) . The UE 102 may identify the POs (or PEI-Os) (435) during which the UE 102 may monitor for paging (or PEI) within the PF / PEI-F. FIG. 4 shows that the UE 102 identifies PO1 (441) and PO4 (444) (may also be PEI-Os) to monitor for paging (or PEI) within the PF / PEI-F.
[0073] PO1 (441) and PO4 (444) may each include multiple candidate PDCCH MOs for paging or PEI based on actually transmitted SSBs. FIG. 4 shows that SSBs 0, 1, and 3 are actually transmitted in PO1 (441) and PO4 (444) as identified by the SSB positions in the burst {1, 1, 0, 1} (495) . Within PO1 (441) , candidate MO 2-1 (480) is associated with transmitted SSB0, candidate MO 2-2 (481) is associated with transmitted SSB1, and candidate 2-4 (483) is associated with transmitted SSB3. MO 2-3 (482) may be associated with SSB2 but because SSB2 is not transmitted, MO 2-3 (482) is not considered a candidate MO for paging or PEI within PO1 (441) . Similarly, within PO4 (444) , candidate MO 2-1 (490) is associated with transmitted SSB0, candidate MO 2-2 (491) is associated with transmitted SSB1, and candidate MO 2-4 (493) is associated with transmitted SSB 3. MO 2-3 (492) may be associated with SSB2 but because SSB 2 is not transmitted, MO 2-3 (492) is not considered a candidate MO for paging or PEI within PO4 (444) .
[0074] For the SSB-specific PO / PEI-O configuration, there may be PO / PEI-O configuration per SSB group. The network entity 104 may configure separate groupings of SSBs for PO1 (441) and PO4 (444) . FIG. 4 shows the SSB grouping (455) where SSB group 1 may be configured for PO1 (441) and PO4 (444) , and SSB group 2 may be configured for PO1 (441) . The network entity 104 may further configure the SSB in each group based on the actually transmitted SSBs. For example, the configuration (475) of actually transmitted SSBs in each group shows a bitmap of {1, 2} for SSB group 1, and a bitmap of {3} for SSB group 2. The {1, 2} bitmap for SSB group 1 indicates that SSB group 1 includes the first and the second transmitted SSBs, which are SSB0 and SSB1. The {3} bitmap for SSB group 2 indicates that SSB group 2 includes the third transmitted SSB, which is SSB3.
[0075] Because both SSB group 1 and SSB group 2 are configured for PO1 (441) , the PDCCH MOs (470) configured for PDCCH monitoring for paging / PEI in PO1 (441) include MO 2-1 (480) associated with SSB0, MO 2-2 (481) associated with SSB1, and MO 2-4 (483) associated with SSB3. The UE 102 may then monitor a PDCCH transmission for paging or PEI during MO 2-1 (480) , MO 2-2 (481) , and MO 2-4 (483) in PO1 (441) within PF / PEI-F (SFN 1 (421) ) and refrain from monitoring a PDCCH transmission during MO 2-3 (482) .
[0076] For PO4 (444) , because only SSB group 1 is configured, the PDCCH MOs (470) configured for PDCCH monitoring for paging / PEI in PO4 (444) include MO 2-1 (490) associated with SSB0 and MO 2-2 (491) associated with SSB1. The UE 102 may then monitor a PDCCH transmission for paging or PEI (paging-PDCCH or PEI-PDCCH) during MO 2-1 (490) and MO 2-2 (491) in PO4 (444) within PF / PEI-F (SFN 1 (421) ) and refrain from monitoring a PDCCH transmission during MO 2-3 (492) and MO 2-4 (493) .
[0077] In another embodiment of the SSB-specific PO / PEI-O configuration, there may be a combination of the PO / PEI-O configuration per SSB group and configuration of monitored MOs per PO / PEI-O. For example, the network entity 104 may configure separate POs / PEI-Os for different group of SSBs. Within each PO / PEI-O, the network entity 104 may further configure the monitored PDCCH MO (s) or the number of PDCCH MOs per PO / PEI-O based on the SSBs within the group (s) corresponding to the PO / PEI-O.
[0078] In another aspect of the PO / PEI-O adaptation, one PDCCH for MO may be associated with multiple SSBs. In one embodiment, the network entity 104 may configure one monitored PDCCH MO for paging / PEI associated with multiple SSBs. Then the network entity 104 and UE 102 may determine how the DMRS of the PDCCH on the PDCCH MO for paging / PEI may be QCLed with the multiple SSBs.
[0079] In one embodiment, the network entity 104 and UE 102 may determine that the DMRS of the PDCCH on the PDCCH MO for paging / PEI may be QCLed with each of the multiple SSBs based on the same QCL parameter (s) from {average delay, delay spread, Doppler spread, Doppler shift, spatial reception filter, average gain} . Thus, the network entity 104 may transmit the PDCCH on the PDCCH MO for paging / PEI based on multiple beams from the associated multiple SSBs based on time-offset and frequency-offset pre-compensation. In one embodiment, the network entity 104 and UE 102 may determine that the DMRS of the PDCCH on the PDCCH MO for paging / PEI may be QCLed with each of the multiple SSBs based on the QCL parameters from {average delay, delay spread, Doppler spread, Doppler shift, spatial reception filter} . In one embodiment, e.g., frequency range 1, the QCL parameters do not include spatial reception filter.
[0080] In one embodiment, the network entity 104 and UE 102 may determine that the DMRS of the PDCCH on the PDCCH MO for paging / PEI may be QCLed with one of the multiple SSBs based on a first set of QCL parameter (s) , and the DMRS of the PDCCH on the PDCCH MO for paging / PEI may be QCLed with the other SSB (s) from the multiple SSBs based on a second set of QCL parameter (s) . In one embodiment, the second set of QCL parameter (s) may be a subset of the first set of QCL parameter (s) . Thus, the network entity 104 may transmit the PDCCH on the PDCCH MO for paging / PEI based on multiple beams from the associated multiple SSBs based on time-offset or frequency-offset pre-compensation. In one embodiment, the first set of QCL parameters may include {average delay, delay spread, Doppler spread, Doppler shift, spatial reception filter} , and the second set of QCL parameters may include {average delay, delay spread, spatial reception filter} or {Doppler spread, Doppler shift, spatial reception filter} . In one embodiment, e.g., frequency range 1, the QCL parameters do not include spatial reception filter.
[0081] In one embodiment, to improve the performance of the PDCCH on the PDCCH MO associated with multiple SSBs, the network entity 104 may transmit the DMRS of the PDCCH and the PDCCH based on a higher energy per resource element (EPRE) than the SSB. The network entity 104 may configure the EPRE ratio between the PDCCH or the DMRS of PDCCH and the associated SSBs or the secondary synchronization signal (SSS) for the associated SSBs.
[0082] In one embodiment, the network entity 104 may configure the number Y of associated SSBs per PDCCH MO for paging / PEI. Then the network entity 104 and the UE 102 may determine the associated SSBs based on the SSB index from the k actually transmitted SSBs and the PDCCH MO location (e.g., time-domain resource) . In one example, the first PDCCH MO for paging / PEI may be associated with the first Y actually transmitted SSBs, and the second PDCCH MO for paging / PEI may be associated the next Y actually transmitted SSBs, and so on. The network entity 104 may configure the location of each PDCCH MO for paging / PEI by RRC signaling. Then the network entity 104 and the UE 102 may determine one PO comprises K / Y PDCCH MOs. The network entity 104 may configure the number of associated SSBs per PDCCH MO for paging / PEI either identically or separately for different POs / PEI-Os.
[0083] In one embodiment, the network entity 104 may configure one or multiple PDCCH MOs for paging / PEI, and configure the associated SSBs for each PDCCH MO based on the actually transmitted SSBs.
[0084] FIG. 5 illustrates an example 500 of a PDCCH MO for paging / PEI associated with multiple SSBs according to an embodiment. The UE 102 may determine the SFN 515 for a PF or PEI-F within a DRX cycle or paging cycle. FIG. 5 shows radio frames indexed by SFN 510 in a DRX cycle or paging cycle where SFN 1 (521) is a PF / PEI-F during which the UE 102 may monitor for paging information. During SFN 0 (520) and SFN 2 (522) , the UE 102 does not monitor for paging information.
[0085] Within the PF / PEI-F of SFN 1 (521) , there are multiple candidate POs 530 (or PEI-Os) (e.g., PO1 (541) , PO2 (542) , PO3 (543) , and PO4 (544) ) . The UE 102 may identify the POs (or PEI-Os) (535) during which the UE 102 may monitor for paging (or PEI) within the PF / PEI-F. FIG. 5 shows that the UE 102 identifies PO2 (542) and PO4 (544) (may also be PEI-Os) to monitor for paging (or PEI) within the PF / PEI-F.
[0086] PO2 (542) may include multiple PDCCH MOs for paging or PEI based on actually transmitted SSBs. FIG. 5 shows that SSBs 0, 1, 3, and 4 are actually transmitted in PO2 (542) as identified by the SSB positions in the burst {1, 1, 0, 1, 1} (595) . There are two PDCCH MOs 575 for paging / PEI in PO2 (542) . Each of the PDCCH MOs 575 may be associated with multiple SSBs. For example, the network entity 104 may configure two associated SSBs per PDCCH MO 575 for paging / PEI. The network entity 104 and the UE 102 may determine the associated SSBs based on the SSB index of the actually transmitted SSBs and the PDCCH MO location (e.g., time-domain resource) . For example, PDCCH MOs (570) configured for PDCCH monitoring in PO2 (542) may include the first PDCCH MO (e.g., MO 2-1 (580) ) associated with the first two actually transmitted SSBs (SSB0 and SSB1) , and the second PDCCH MO (MO 2-2 (585) ) associated with another two actually transmitted SSBs (SSB3 and SSB4) . Here in this example, SSB2 is not transmitted. The UE 102 may then monitor a PDCCH transmission for paging or PEI (paging-PDCCH or PEI-PDCCH) during MO 2-1 (580) and MO 2-2 (585) in PO2 (542) within PF / PEI-F (SFN 1 (521) ) .
[0087] In one embodiment, the PDCCH for PEI may indicate the availability indication for one TRS set, which may be QCLed with the multiple SSBs associated with the PDCCH for paging. The TRS set may be QCLed with the SSBs based on the same QCL parameters. Alternatively, the TRS set may be QCLed with one of the multiple SSBs based on a first set of QCL parameters and QCLed with the other SSBs of the multiple SSBs based on a second set of QCL parameters.
[0088] In one embodiment, the PDCCH for PEI may indicate the availability indication for multiple TRS sets, where the multiple TRS sets are one-to-one QCLed with the multiple SSBs associated with the PDCCH for paging based on one or multiple of the QCL parameters: {average delay, delay spread, Doppler spread, Doppler shift, spatial reception filter, average gain} .
[0089] In another aspect of the PO / PEI-O adaptation, there may be dynamic update of the configuration for PO / PEI-O. In one embodiment of the dynamic configuration update, there may be an update of the SSB pattern. For example, the network entity 104 may transmit a control signaling to update the SSB pattern, e.g., actually transmitted SSBs and / or periodicity for one or multiple SSBs. The network entity 104 may transmit the control signaling by an RRC message, MAC CE, or DCI. The network entity 104 may transmit the control signaling in a uni-cast manner directed to one UE, or in a group-cast to a group of UEs, or a broadcast manner. For example, the network entity 104 may transmit the control signaling based on cell RNTI (C-RNTI) or modulation and coding scheme C-RNTI (MCS-C-RNTI) to one UE, transmit the control signaling based on a configured RNTI in a group-cast manner, or transmit the control signaling based on a pre-defined RNTI in a broadcast manner.
[0090] In one embodiment, after application of the updated SSB pattern, the UE 102 may monitor the PDCCH on PDCCH MOs for paging / PEI based on the updated SSB pattern. In one embodiment, the UE 102 may determine the PDCCH MOs for paging / PEI based on the actually transmitted SSBs within the PO / PEI-O or PF / PEI-F according to the updated SSB pattern. In some other implementations, the UE 102 may determine the PDCCH MOs for paging / PEI based on the actually transmitted SSBs according to the updated SSB pattern in the serving cell or bandwidth part. If one actually transmitted SSB is not transmitted within a PO, the network entity 104 and UE 102 may determine the PDCCH MO associated with the SSB based on a reference location of the SSB, e.g., location of the SSB within a SSB burst and the minimum SSB periodicity.
[0091] In one embodiment, the UE 102 may start to apply the new PO / PEI-O corresponding to the updated SSB pattern at the next PO / PEI-O or the next PF / PEI-F after the action time of the updated SSB pattern.
[0092] FIG. 6 illustrates an example 600 of PDCCH monitoring based on the actually transmitted SSBs for each PO / PEI-O according to an embodiment. The UE 102 may determine the SFN 615 for a PF or PEI-F within a DRX cycle or paging cycle. Each DRX cycle or paging cycle may have T radio frames. FIG. 6 shows the radio frames indexed by SFN 610 in two DRX cycles or paging cycles where SFN 1 (621) is a PF / PEI-F in a first DRX cycle or paging cycle and SFN T+1 (626) is a PF / PEI-F in a second DRX cycle or paging cycle during which the UE 102 may monitor for paging information. During SFN 0 (620) , SFN 2 (622) , and so on in the first DRX cycle or paging cycle, and SFN T (625) , SFN T+2 (627) , and so on in the second DRX cycle or paging cycle, the UE 102 does not monitor for paging information.
[0093] Within each of the PF / PEI-F in SFN 1 (621) and SFN T+1 (626) , there are multiple candidate POs 630 (or PEI-Os) (e.g., PO1 (641) , PO2 (642) in SFN 1 (621) ; and PO1 (651) , PO2 (652) in SFN T+1 (626) ) . The UE 102 may identify the POs (or PEI-Os) (635) during which the UE 102 may monitor for paging (or PEI) within the PF / PEI-F. FIG. 6 shows that the UE 102 identifies PO2 (642) in SFN 1 (621) and PO2 (652) in SFN T+1 (626) (may also be PEI-Os) to monitor for paging (or PEI) .
[0094] PO2 (642) of SFN 1 (621) may include multiple PDCCH MOs for paging or PEI based on actually transmitted SSBs. FIG. 6 shows that SSBs 0, 1 are actually transmitted in PO2 (642) as identified by the SSB positions in the burst {1, 1, 0, 0} (685) . There are two PDCCH MOs 675 for paging / PEI in PO2 (642) . Each of the PDDCH MOs 675 is associated with one transmitted SSB. Thus, the PDCCH MOs (670) configured for PDCCH monitoring in PO2 (642) may include the first PDCCH MO (e.g., MO 2-1 (680) ) associated with SSB0 and the second PDCCH MO (e.g., MO 2-2 (681) ) associated with SSB1. The UE 102 may then monitor a PDCCH transmission for paging or PEI (paging-PDCCH or PEI-PDCCH) during MO 2-1 (680) and MO 2-2 (681) in PO2 (642) within PF / PEI-F (SFN 1 (621) ) of the first DRX cycle or paging cycle.
[0095] PO2 (652) of SFN T+1 (626) may also include multiple PDCCH MOs for paging or PEI based on actually transmitted SSBs. FIG. 6 shows that SSBs 0, 3 are actually transmitted in PO2 (652) as identified by the SSB positions in the burst {1, 0, 0, 1} (695) . There are two PDCCH MOs 675 for paging / PEI in PO2 (652) . Each PDDCH MO is associated with one transmitted SSB. Thus, the PDCCH MOs (670) configured for PDCCH monitoring in PO2 (652) may include the first PDCCH MO (e.g., MO 2-1 (690) ) associated with SSB0 and the second PDCCH MO (e.g., MO 2-2 (693) ) associated with SSB3. The UE 102 may then monitor a PDCCH transmission for paging or PEI (paging-PDCCH or PEI-PDCCH) during MO 2-1 (690) and MO 2-2 (693) in PO2 (652) within PF / PEI-F (SFN T+1 (626) ) of the second DRX cycle or paging cycle.
[0096] FIG. 7 illustrates an example of PDCCH monitoring in a PO / PEI-O based on the actually transmitted SSBs in a serving cell or bandwidth part according to an embodiment. The UE 102 may determine the SFN 715 for a PF or PEI-F within a DRX cycle or paging cycle. Each DRX cycle or paging cycle may have T radio frames. FIG. 7 shows the radio frames indexed by SFN 710 in two DRX cycle or paging cycles where SFN 1 (721) is a PF / PEI-F in a first DRX cycle or paging cycle and SFN T+1 (726) is a PF / PEI-F in a second DRX cycle or paging cycle during which the UE 102 may monitor for paging information. During SFN 0 (720) , SFN 2 (722) , and so on in the first DRX cycle or paging cycle, and SFN T (725) , SFN T+2 (727) , and so on in the second DRX cycle or paging cycle, the UE 102 does not monitor for paging information.
[0097] Within each of the PF / PEI-F in SFN 1 (721) and SFN T+1 (726) , there are multiple candidate POs 730 (or PEI-Os) (e.g., PO1 (741) , PO2 (742) in SFN 1 (721) ; and PO1 (751) , PO2 (752) in SFN T+1 (726) ) . The UE 102 may identify the POs (or PEI-Os) (735) during which the UE 102 may monitor for paging (or PEI) within the PF / PEI-F. FIG. 7 shows that the UE 102 identifies PO2 (742) in SFN 1 (721) and PO2 (752) in SFN T+1 (726) (may also be PEI-Os) to monitor for paging (or PEI) .
[0098] PO2 (742) of SFN 1 (721) and PO2 (752) of SFN T +1 (726) may each include multiple PDCCH MOs for paging or PEI based on actually transmitted SSBs in a serving cell or bandwidth part. Even though SSBs 0, 1 are actually transmitted in PO2 (742) as identified by the SSB positions in the burst {1, 1, 0, 0} (785) and SSBs 0, 3 are actually transmitted in PO2 (752) as identified by the SSB positions in the burst {1, 0, 0, 1} (795) , SSBs 0, 1, and 3 are transmitted in the serving cell or bandwidth part. The PDCCH MOs 775 for paging / PEI in PO2 (742) and PO2 (752) are each determined based on SSBs 0, 1, and 3.
[0099] Thus, the PDCCH MOs (770) configured for PDCCH monitoring in PO2 (742) may include the first PDCCH MO (e.g., MO 2-1 (780) ) associated with SSB0, the second PDCCH MO (e.g., MO 2-2 (781) ) associated with SSB1, and the third PDCCH MO (e.g., MO 2-3 (783) ) associated with SSB3. Similarly, the PDCCH MOs (770) configured for PDCCH monitoring in PO2 (752) may include the first PDCCH MO (e.g., MO 2-1 (790) ) associated with SSB0, the second PDCCH MO (e.g., MO 2-2 (791) ) associated with SSB1, and the third PDCCH MO (e.g., MO 2-3 (793) ) associated with SSB3. The UE 102 may then monitor a PDCCH transmission for paging or PEI (paging-PDCCH or PEI-PDCCH) during MO 2-1 (780) , MO 2-2 (781) , and MO 2-3 (783) in PO2 (742) within PF / PEI-F (SFN 1 (721) ) of the first DRX cycle or paging cycle, and during MO 2-1 (790) , MO 2-2 (791) , and MO 2-3 (793) in PO2 (752) within PF / PEI-F (SFN T+1 (726) ) of the second DRX cycle or paging cycle.
[0100] In one embodiment, regardless of whether the SSB pattern is updated or not, the UE 102 may monitor the PDCCH on PDCCH MOs for paging / PEI based on the initial SSB configuration, e.g., actually transmitted SSBs and the periodicity for each SSB.
[0101] In one embodiment, the network entity 104 may configure whether the UE 102 may monitor the PDCCH on PDCCH MOs for paging / PEI based on the updated SSB pattern or not. The network entity 104 may provide the configuration by RRC signaling or the control signaling for the SSB pattern update.
[0102] In one embodiment, if the periodicities of different SSBs are different, to identify the PDCCH MOs for paging / PEI, the network entity 104 and UE 102 may determine the location of the PDCCH MO based on the SSB pattern and the minimum periodicity of the SSBs. The network entity 104 and UE 102 may determine the PDCCH MOs for one PO / PEI-O based on the minimum periodicity of the SSBs.
[0103] FIG. 8 illustrates an example 800 of PDCCH MOs for paging / PEI based on a minimum SSB periodicity when the periodicities are different for different SSBs. The timeline is divided into units of 1 millisecond (ms) subframe (810) . SSB1 (811) may have a periodicity of 20 ms. The network 104 may transmit SSB1 (811) in subframe 1 (801) , subframe 21 (821) , subframe 41 (841) , subframe 61 (861) , and so on. SSB3 (812) may have a periodicity of 40 ms. The network 104 may transmit SSB3 (812) in subframe 2 (802) , subframe 42 (842) , and so. In this example, the minimum periodicity of the two SSBs 811 and 812 is 20 ms.
[0104] The PDCCH MOs for a PO / PEI-O (890) may be based on the 20 ms minimum periodicity of the two SSBs, SSB1 (811) and SSB3 (812) . There are two PDCCH MOs configured per PO / PEI-O (890) , with each of the two PDCCH MOs being associated with one SSB. PDCCH MO 1 (813) may be associated with SSB1 (811) and PDCCH MO 2 (814) may be associated with SSB3 (812) . The network entity 104 and the UE 102 may determine the locations of PDCCH MO 1 (813) for each successive PO / PEI-O (890) as subframe 3 (803) , subframe 23 (823) , subframe 43 (843) , subframe 63 (863) , and so on. The network entity 104 and the UE 102 may determine the locations of PDCCH MO 2 (814) for each successive PO / PEI-O (890) as subframe 4 (804) , subframe 24 (824) , subframe 44 (844) , subframe 64 (864) , and so on. The UE 102 may monitor a PDCCH transmission for paging or PEI (paging-PDCCH or PEI-PDCCH) during subframes 3 (803) and 4 (804) of a first PO / PEI-O (890) , subframes 23 (823) and 24 (824) of a second PO / PEI-O (890) , subframes 43 (843) and 44 (844) of a third PO / PEI-O (890) , subframes 63 (863) and 64 (864) of a fourth PO / PEI-O (890) , and so on. Note that each PO / PEI-O (890) may not contain a transmission occasion of all the actually transmitted SSBs. For example, the second the fourth PO / PEI-Os (890) do not contain a transmission occasion of SSB3 (812) .
[0105] In one embodiment, if the periodicities of different SSBs are different, the network entity 104 and UE 102 may determine one PO / PEI-O based on the SSB pattern and the maximum periodicity of the SSBs. Thus, the network entity 104 and UE 102 may determine that one PO / PEI-O may comprise at least one transmission occasion of all the actually transmitted SSBs or PDCCH MOs associated with all the actually transmitted SSBs. In one embodiment, if the PO / PEI-O comprises multiple transmission occasions of one SSB or multiple PDCCH MOs associated with one SSB, the network entity 104 may transmit the PDCCH on one of the PDCCH MOs or any of the PDCCH MOs. Thus, for the PDCCH MOs associated with the same SSB within a PO, the UE 102 may monitor the PDCCH on one of, a subset of, or all of the PDCCH MOs. The one or a subset of the PDCCH MOs may be predefined, e.g., the first M PDCCH MO (s) , or as configured by the network entity 104.
[0106] FIG. 9 illustrates an example 900 of PDCCH MOs for paging / PEI based on a maximum SSB periodicity when the periodicities are different for different SSBs. The timeline is divided into units of 1 ms subframe (910) . As in FIG. 8, SSB1 (911) may have a periodicity of 20 ms and SSB3 (912) may have a periodicity of 40 ms. The network 104 may transmit SSB1 (911) in subframe 1 (901) , subframe 21 (921) , subframe 41 (941) , subframe 61 (961) , and so on. The network 104 may transmit SSB3 (912) in subframe 2 (902) , subframe 42 (942) , and so. In this example, the maximum periodicity of the two SSBs 911 and 912 is 40 ms.
[0107] The PDCCH MOs for a PO / PEI-O (990) may be based on the 40 ms maximum periodicity of the two SSBs, SSB1 (911) and SSB3 (912) . There are two PDCCH MOs configured per PO / PEI-O (990) , with each of the two PDCCH MOs being associated with one SSB. PDCCH MO 1 (913) may be associated with SSB1 (911) and PDCCH MO 2 (914) may be associated with SSB3 (912) . Because each PO / PEI-P (990) includes two transmission occasions of SSB1 (911) , the network entity 104 and the UE 102 may determine the locations of PDCCH MO 1 (913) as subframe 3 (903) and subframe 23 (923) of a first PO / PEI-O (990) , subframe 43 (943) and subframe 63 (963) of a second PO / PEI-O (990) , and so on. Because each PO / PEI-P (990) includes one transmission occasion of SSB3 (912) , the network entity 104 and the UE 102 may determine the locations of PDCCH MO 2 (914) as subframe 4 (904) of a first PO / PEI-O (990) , subframe 44 (944) of a second PO / PEI-O (990) , and so on. The UE 102 may monitor a PDCCH transmission for paging or PEI (paging-PDCCH or PEI-PDCCH) on one or both of subframes 3 (903) and 23 (923) , and on subframe 4 (904) of a first PO / PEI-O (890) . The UE 102 may monitor a PDCCH transmission for paging or PEI on one or both of subframes 43 (943) and 63 (963) , and on subframe 44 (944) of a second PO / PEI-O (890) .
[0108] In another embodiment of the dynamic configuration update, there may be update of the PO / PEI-O configuration. For example, the network entity 104 may transmit a control signaling to update the PO / PEI-O configuration. The network entity 104 may transmit the control signaling by an RRC message, MAC CE or DCI. The network entity 104 may transmit the control signaling in a unicast manner directed to one UE, or in a group-cast manner directed to a group of UEs or a broadcast manner. For example, the network entity 104 may transmit the control signaling based on C-RNTI or MCS-C-RNTI to one UE, transmit the control signaling based on a configured RNTI in a group-cast manner, or transmit the control signaling based on a pre-defined RNTI in a broadcast manner.
[0109] In the control signaling, the network entity 104 may configure at least one of the followings: number of SSBs or MOs for paging / PEI per PO / PEI-O; monitored MOs for paging / PEI per PO / PEI-O; SSBs in each group when POs / PEI-Os are configured per SSB group; PO / PEI-O for each SSB group or for the paging / PEI configuration; number of associated SSBs per MO for paging / PEI; associated SSB (s) for one or multiple MO for paging / PEI. In one embodiment, the network entity 104 may update the number of POs / PEI-Os in a PF / PEI-F by the control signaling. In one example, the network entity 104 may configure K1 sets of monitored MOs or K1 first MOs for PO / PEI-O in the control signaling 204, and configure K2 sets of monitored MOs or K2 first MOs for PO / PEI-O in the control signaling 206, where K1 and K2 are different.
[0110] In one embodiment, the network entity 104 may provide multiple configurations of PO / PEI-O. Then in the control signaling, the network entity 104 may indicate the configuration index to indicate the configuration for the PO / PEI-O to be applied.
[0111] In one embodiment, the network entity 104 may further configure an effective window to apply the updated PO / PEI-O configuration. Outside the effective window, the network entity 104 and UE 102 may communicate based on the initial configuration for paging or PEI. In one embodiment, the network entity 104 may configure the starting point, duration, the end point and / or periodicity for the effective window.
[0112] FIG. 10 illustrates an example 1000 for a dynamic update of PO / PEI-O configuration based on an effective window. The timeline may be divided into units of SFN (1010) . The network entity 104 may update a PO / PEI-O configuration and may further configure an effective window (1060) to apply the updated PO / PEI-O configuration. The effective window (1060) may start from SFN Q (1030) and end at SFN Q+M (1050) for a duration of M SFNs.
[0113] Within the effective window (1060) , the UE 102 may monitor for paging or PEI using PDCCH MOs 1015 based on the updated PO / PEI-O configuration. Outside the effective window (1060) , such as in SFN 0 (102) , SFN 1 (1021) , SFN 2 (1022) , etc., before the effective window (1060) , and in SFN Q+M+1 (1051) , etc., after the effective window (1060) , the UE 102 may monitor for paging or PEI using PDCCH MOs 1011 based on an initial PO / PEI-O configuration.
[0114] In one embodiment, the UE 102 may apply the updated configuration at the next PO / PEI-O or the next PF / PEI-F after Z slots or symbols or millisecond after the UE 102 receives the last symbol of the control signaling or after the UE 102 transmits the last symbol of the ACK of the control signaling. In one embodiment, Z may be predefined (e.g., Z=0) , may be configured by the network entity 104, or reported by the UE 102. In one embodiment, the network entity 104 and UE 102 may determine the duration of Z based on the downlink subcarrier spacing of the downlink BWP with the control signaling or the uplink subcarrier spacing of the uplink BWP with the ACK of the control signaling or both (e.g., minimum or maximum downlink or uplink subcarrier spacing) .
[0115] In one embodiment, there may be ACK / NACK mechanisms for the dynamic configuration update. For example, the UE 102 may transmit an ACK / NACK in response to the control signaling to dynamically update the PO / PEI-O configuration. The UE 102 may transmit the ACK / NACK on a configured uplink resource, e.g., PUCCH resource, PRACH resource, or PUSCH resource.
[0116] In one embodiment, if the UE 102 receives the control signaling successfully, it may transmit ACK on the configured uplink resource; otherwise, the UE 102 may transmit NACK on the configured uplink resource. In one embodiment, if the UE 102 receives the control signaling successfully, it may transmit the ACK on the configured uplink resource; otherwise, the UE 102 may refrain from transmitting the NACK on the configured uplink resource. In one embodiment, if the UE 102 receives the control signaling successfully, it may refrain from transmitting the ACK on the configured uplink resource; otherwise, the UE 102 may transmit the NACK on the configured uplink resource.
[0117] FIGs. 11-12 show methods for implementing one or more aspects of FIGs. 2-10. In particular, FIG. 11 shows an implementation by the UE 102 of the one or more aspects of FIGs. 2-10. FIG. 12 shows an implementation by the network entity 104 of the one or more aspects of FIGs. 2-10.
[0118] FIG. 11 is a flow diagram of a method 1100 of wireless communication at a UE 102 for adapting the PO for monitoring paging information according to an embodiment. With reference to FIG. 1, the method 1100 may be performed by the UE 102.
[0119] The UE 102 optionally transmits 1102, to a network entity 104, UE capability information on supported configuration for associating MOs for monitoring paging control information in a PO with transmitted SSBs in the PO. For example, referring to FIG. 2, the UE 102 may optionally transmit 202 to the network entity 104, UE’s capability on supported configuration for PO / PEI-O adaptation, including supported configuration for associating PDCCH MOs in a PO or a PEI-O with SSBs in the PO / PEI-O. In one embodiment, the UE 102 may report at least one of the following capabilities: whether the UE 102 supports SSB-specific PO configuration; whether the UE 102 supports one MO of a PO associated with multiple SSBs; whether the UE 102 supports dynamic update of PO configuration; whether the UE 102 supports SSB- specific PEI-O configuration; whether the UE 102 supports one MO of a PEI-O associated with multiple SSBs; whether the UE 102 supports dynamic update of PEI-O configuration.
[0120] The UE 102 receives 1104, from the network entity 104, control signaling configuring one or more MOs for monitoring the paging control information in at least one of a PO or a PEI-O. A number of MOs is different from a number of transmitted SSBs in the at least one PO or PEI-O. For example, referring to FIG. 2, the UE 102 receives 204 from the network entity 104 control signaling configuring one or more PDCCH MOs in a PO or a PEI-O. The control signaling may configure an association between the PDCCH MOs and the transmitted SSBs in the PO / PEI-O including at least one of: the PDCCH MOs associated with a subset of the SSBs in the PO / PEI-O, separate groupings of the SSBs for separate POs containing the PDCCH MOs, a PDCCH MO associated with a plurality of the SSBs in the PO / PEI-O, dynamic updating of the association between the PDCCH MOs and the SSBs in the PO / PEI-O, etc.
[0121] The UE 102 optionally receives 1106, from the network entity 104, control signaling configuring an update to the one or more MOs or the transmitted SSBs in the at least one PO or PEI-O. For example, referring to FIG. 2, the UE 102 may optionally receive 206 from the network entity 104 control signaling configuring an update to the association between the PDCCH MOs and the SSBs in one or more POs / PEI-Os. For example, the UE 102 may receive a control signaling to dynamically update the configuration for one or multiple POs or PEI-Os in a PF / PEI-F. In one embodiment, UE 102 may receive an update to the periodicity for one of or a subset of or all the SSBs. Then the UE 102 may further determine the POs / PEI-Os based on the updated periodicity for the SSBs. The UE 102 may receive the control signaling to update the association between the PDCCH MOs and the SSBs in one or more POs / PEI-Os by an RRC message, a medium access control (MAC) control element (CE) , or DCI.
[0122] The UE 102 optionally transmits 1108, to the network entity 104, an ACK or a NACK of the control signaling configuring the update to the one or more MOs or the transmitted SSBs in the at least one PO or PEI-O. For example, referring to FIG. 2, the UE 102 may optionally transmit 208 to the network entity 104 an ACK and / or a NACK in response to the control signaling for dynamic update of the configuration for one or multiple POs / PEI-Os. The UE 102 may transmit the ACK / NACK by ACK only, NACK only or ACK / NACK mechanism.
[0123] The UE 102 receives 1110, from the network entity 104, the paging control information during the one or more MOs in the at least one PO or PEI-O. For example, referring to FIG. 2, the UE 102 receives 210 from the network entity 104 PDCCH transmissions in one or more of the configured MOs in one or more POs / PEI-Os. In one embodiment, after the action time of the control signaling for dynamic update of the PO / PEI-O, the UE 102 and network entity 104 may further apply the new configuration. The UE 102 may monitor the PDCCH for paging or PEI on the PDCCH MO for paging or PEI based on the initial configuration or an updated configuration of the PO / PEI-O.
[0124] The UE 102 optionally receives 1112, from the network entity 104, further communication based on the paging control information. For example, referring to FIG. 2, the UE 102 may optionally receive 212 from the network entity 104 further communication based on the DCI of the PDCCH transmission. For example, after receiving the PDCCH for paging or PEI, the UE 102 may optionally communicate with the network entity 104 to receive the PDSCH for paging, to receive the TRS, or determine whether to monitor the PDCCH for paging in the POs associated with the PEI.
[0125] FIG. 11 describes a method from a UE-side of a wireless communication link, whereas FIG. 12 describes a method from a network-side of the wireless communication link.
[0126] FIG. 12 is a flow diagram of a method 1200 of wireless communication at a network entity for adapting the PO for monitoring paging information according to an embodiment. With reference to FIG. 1, the method 1200 may be performed by one or more network entities 104, which may correspond to a base station or a unit of the base station, such as the RU 106, the DU 108, and / or the CU 110.
[0127] The network entity 104 optionally receives 1102, from a UE 102, UE capability information on supported configuration for associating MOs for monitoring paging control information in a PO with transmitted SSBs in the PO. For example, referring to FIG. 2, the network entity 104 may optionally receive 202 from the UE 102 UE’s capability on supported configuration for PO / PEI-O adaptation, including supported configuration for associating PDCCH MOs in a PO or a PEI-O with SSBs in the PO / PEI-O. In one embodiment, the UE 102 may report at least one of the following capabilities: whether the UE 102 supports SSB-specific PO configuration; whether the UE 102 supports one MO of a PO associated with multiple SSBs; whether the UE 102 supports dynamic update of PO configuration; whether the UE 102 supports SSB-specific PEI-O configuration; whether the UE 102 supports one MO of a PEI-O associated with multiple SSBs; whether the UE 102 supports dynamic update of PEI-O configuration. In one embodiment, the network entity 104 may receive the capability information of the UE 102 from a core network (e.g., Access and Mobility Management Function (AMF) ) . In one embodiment, the network entity 104 may receive the capability information from another base station (e.g., gNB or eNB) .
[0128] The network entity 104 transmits 1204, to the UE 102, control signaling configuring one or more MOs for UE monitoring of the paging control information in at least one of a PO or a PEI-O. A number of MOs is different from a number of transmitted SSBs in the at least one PO or PEI-O. For example, referring to FIG. 2, the network entity 104 transmits 204, to the UE 102, control signaling configuring one or more PDCCH MOs in a PO or a PEI-O. The control signaling may configure an association between the PDCCH MOs and the transmitted SSBs in the PO / PEI-O including at least one of: the PDCCH MOs associated with a subset of the SSBs in the PO / PEI-O, separate groupings of the SSBs for separate POs containing the PDCCH MOs, a PDCCH MO associated with a plurality of the SSBs in the PO / PEI-O, dynamic updating of the association between the PDCCH MOs and the SSBs in the PO / PEI-O, etc.
[0129] The network entity 104 optionally transmits 1206, to the UE 102, control signaling configuring an update to the one or more MOs or the transmitted SSBs in the at least one PO or PEI-O. For example, referring to FIG. 2, the network entity 104 may optionally transmit 206 control signaling configuring an update to the association between the PDCCH MOs and the SSBs in one or more POs / PEI-Os. For example, the network entity 104 may transmit a control signaling to dynamically update the configuration for one or multiple POs or PEI-Os in a PF / PEI-F. In one embodiment, the network entity 104 may configure an update to the periodicity for one of or a subset of or all the SSBs. Then the UE 102 may further determine the POs / PEI-Os based on the updated periodicity for the SSBs. The network entity 104 may transmit the control signaling to update the association between the PDCCH MOs and the SSBs in one or more POs / PEI-Os by an RRC message, a medium access control (MAC) control element (CE) , or DCI.
[0130] The network entity 104 optionally receives 1208, from the UE 102, an ACK or a NACK of the control signaling configuring the update to the one or more MOs or the transmitted SSBs in the at least one PO or PEI-O. For example, referring to FIG. 2, the network entity 104 may optionally receive 208, from the UE 102 an ACK and / or a NACK in response to the control signaling for dynamic update of the configuration for one or multiple POs / PEI-Os. The network entity 104 may receive the ACK / NACK by ACK only, NACK only or ACK / NACK mechanism
[0131] The network entity 104 transmits 1210, to the UE 102, the paging control information during the one or more MOs in the at least one PO or PEI-O. For example, referring to FIG. 2, the network entity 104 transmits 210 to the UE 102 PDCCH transmissions in one or more of the configured MOs in one or more POs / PEI-Os. In one embodiment, after the action time of the control signaling for dynamic update of the PO / PEI-O, the UE 102 and network entity 104 may further apply the new configuration. The UE 102 may monitor the PDCCH for paging or PEI on the PDCCH MO for paging or PEI based on the initial configuration or an updated configuration of the PO / PEI-O.
[0132] The network entity 104 optionally transmits 1212, to the UE 102, further communication based on the paging control information. For example, referring to FIG. 2, the network entity 104 may optionally transmit 212 to the UE 102 further communication based on the DCI of the PDCCH transmission. For example, network entity 104 may optionally communicate with the UE 102 to transmit the PDSCH for paging, to transmit the TRS, or to transmit the PDCCH for paging in the POs associated with the PEI.
[0133] A UE apparatus 1302, as described in FIG. 13, may perform the method of flowchart 1100 of FIG. 11. The one or more network entities 104, as described in FIG. 14, may perform the method of flowchart 1200 of FIG. 12.
[0134] FIG. 13 is a diagram illustrating an example of a hardware implementation for a UE apparatus to support adapting the PO for monitoring paging information according to an embodiment. The UE apparatus 1302 may be the UE 102, a component of the UE 102, or may implement UE functionality. The UE apparatus 1302 may include an application processor 1306, which may have on-chip memory 1306’ . In examples, the application processor 1306 may be coupled to a secure digital (SD) card 1308 and / or a display 1310. The application processor 1306 may also be coupled to a sensor (s) module 1312, a power supply 1314, an additional module of memory 1316, a camera 1318, and / or other related components. For example, the sensor (s) module 1312 may control a barometric pressure sensor / altimeter, a motion sensor such as an inertial management unit (IMU) , a gyroscope, accelerometer (s) , a light detection and ranging (LIDAR) device, a radio-assisted detection and ranging (RADAR) device, a sound navigation and ranging (SONAR) device, a magnetometer, an audio device, and / or other technologies used for positioning.
[0135] The UE apparatus 1302 may further include a wireless baseband processor 1326, which may be referred to as a modem. The wireless baseband processor 1326 may have on-chip memory 1326'. Along with, and similar to, the application processor 1306, the wireless baseband processor 1326 may also be coupled to the sensor (s) module 1312, the power supply 1314, the additional module of memory 1316, the camera 1318, and / or other related components. The wireless baseband processor 1326 may be additionally coupled to one or more subscriber identity module (SIM) card (s) 1320 and / or one or more transceivers 1330 (e.g., wireless RF transceivers) .
[0136] Within the one or more transceivers 1330, the UE apparatus 1302 may include a Bluetooth module 1332, a WLAN module 1334, an SPS module 1336 (e.g., GNSS module) , and / or a cellular module 1338. The Bluetooth module 1332, the WLAN module 1334, the SPS module 1336, and the cellular module 1338 may each include an on-chip transceiver (TRX) , or in some cases, just a transmitter (TX) or just a receiver (RX) . The Bluetooth module 1332, the WLAN module 1334, the SPS module 1336, and the cellular module 1338 may each include dedicated antennas and / or utilize antennas 1340 for communication with one or more other nodes. For example, the UE apparatus 1302 can communicate through the transceiver (s) 1330 via the antennas 1340 with another UE (e.g., sidelink communication) and / or with a network entity 104 (e.g., uplink / downlink communication) , where the network entity 104 may correspond to a base station or a unit of the base station, such as the RU 106, the DU 108, or the CU 110.
[0137] The wireless baseband processor 1326 and the application processor 1306 may each include a computer-readable medium / memory 1326', 1306', respectively. The additional module of memory 1316 may also be considered a computer-readable medium / memory. Each computer-readable medium / memory 1326', 1306', 1316 may be non-transitory. The wireless baseband processor 1326 and the application processor 1306 may each be responsible for general processing, including execution of software stored on the computer-readable medium / memory 1326', 1306', 1316. The software, when executed by the wireless baseband processor 1326 / application processor 1306, causes the wireless baseband processor 1326 / application processor 1306 to perform the various functions described herein. The computer-readable medium / memory may also be used for storing data that is manipulated by the wireless baseband processor 1326 / application processor 1306 when executing the software. The wireless baseband processor 1326 / application processor 1306 may be a component of the UE 102. The UE apparatus 1302 may be a processor chip (e.g., modem and / or application) and include just the wireless baseband processor 1326 and / or the application processor 1306. In other examples, the UE apparatus 1302 may be the entire UE 102 and include the additional modules of the apparatus 1302.
[0138] As discussed in FIG. 1 and implemented with respect to FIG. 13, a PO / PEI-O adaptation monitoring component 140 is configured to receive and determine changes to the association between MOs for paging / PEI and SSBs in a PO / PEI-O. The PO / PEI-O adaptation monitoring component 140 may receive from the base station / network entity 104 a control signaling configuring one or more MOs for monitoring the paging control information in at least one of a PO or a PEI-O. The number of the MOs may be different from the number of transmitted SSBs in the at least one PO or PEI-O. The PO / PEI-O adaptation monitoring component 140 may receive from the base station / network entity 104 the paging control information during the one or more MOs in the at least one PO or PEI-O.
[0139] The PO / PEI-O adaptation monitoring component 140 may be within the application processor 1306 (e.g., at 140a) , the wireless baseband processor 1326 (e.g., at 140b) , or both the application processor 1306 and the wireless baseband processor 1326. The PO / PEI-O adaptation monitoring component 140a-140b may be one or more hardware components specifically configured to carry out the stated processes / algorithm, implemented by one or more processors configured to perform the stated processes / algorithm, stored within a computer-readable medium for implementation by the one or more processors, or a combination thereof.
[0140] FIG. 14 is a diagram illustrating an example of a hardware implementation for one or more network entities to support adapting the PO for monitoring paging information according to an embodiment. The one or more network entities 104 may be a base station, a component of a base station, or may implement base station functionality. The one or more network entities 104 may include, or may correspond to, at least one of the RU 106, the DU, 108, or the CU 110. The CU 110 may include a CU processor 1446, which may have on-chip memory 1446'. In some aspects, the CU 110 may further include an additional module of memory 1456 and / or a communications interface 1448, both of which may be coupled to the CU processor 1446. The CU 110 can communicate with the DU 108 through a midhaul link 162, such as an F1 interface between the communications interface 1448 of the CU 110 and a communications interface 1428 of the DU 108.
[0141] The DU 108 may include a DU processor 1426, which may have on-chip memory 1426'. In some aspects, the DU 108 may further include an additional module of memory 1436 and / or the communications interface 1428, both of which may be coupled to the DU processor 1426. The DU 108 can communicate with the RU 106 through a fronthaul link 160 between the communications interface 1428 of the DU 108 and a communications interface 1408 of the RU 106.
[0142] The RU 106 may include an RU processor 1406, which may have on-chip memory 1406'. In some aspects, the RU 106 may further include an additional module of memory 1416, the communications interface 1408, and one or more transceivers 1430, all of which may be coupled to the RU processor 1406. The RU 106 may further include antennas 1440, which may be coupled to the one or more transceivers 1430, such that the RU 106 can communicate through the one or more transceivers 1430 via the antennas 1440 with the UE 102.
[0143] The on-chip memory 1406', 1426', 1446'a nd the additional modules of memory 1416, 1436, 1456 may each be considered a computer-readable medium / memory. Each computer-readable medium / memory may be non-transitory. Each of the processors 1406, 1426, 1446 is responsible for general processing, including execution of software stored on the computer-readable medium / memory. The software, when executed by the corresponding processor (s) 1406, 1426, 1446 causes the processor (s) 1406, 1426, 1446 to perform the various functions described herein. The computer-readable medium / memory may also be used for storing data that is manipulated by the processor (s) 1406, 1426, 1446 when executing the software. In examples, the PO / PEI-O adaptation configuration component 150 may sit at any of the one or more network entities 104, such as at the CU 110; both the CU 110 and the DU 108; each of the CU 110, the DU 108, and the RU 106; the DU 108; both the DU 108 and the RU 106; or the RU 106.
[0144] As discussed in FIG. 1 and implemented with respect to FIG. 14, a PO / PEI-O adaptation configuration component 150 is configured to transmit and support changes to the association between MOs for paging / PEI and the SSBs in a PO / PEI-O. The PO / PEI-O adaptation configuration component 150 may transmit to the UE 102 a control signaling configuring one or more MOs for UE monitoring of the paging control information in at least one of a PO or a PEI-O. The number of the MOs may be different from the number of transmitted SSBs in the at least one PO or PEI-O. The PO / PEI-O adaptation configuration component 150 may transmit to the UE 102 the paging control information during the one or more MOs in the at least one PO or PEI-O.
[0145] The PO / PEI-O adaptation configuration component 150 may be within one or more processors of the one or more network entities 104, such as the RU processor 1406 (e.g., at 150a) , the DU processor 1426 (e.g., at 150b) , and / or the CU processor 1446 (e.g., at 150c) . The PO / PEI-O adaptation configuration component 150a-150c may be one or more hardware components specifically configured to carry out the stated processes / algorithm, implemented by one or more processors 1406, 1426, 1446 configured to perform the stated processes / algorithm, stored within a computer-readable medium for implementation by the one or more processors 1406, 1426, 1446, or a combination thereof.
[0146] The specific order or hierarchy of blocks in the processes and flowcharts disclosed herein is an illustration of example approaches. Hence, the specific order or hierarchy of blocks in the processes and flowcharts may be rearranged. Some blocks may also be combined or deleted. Dashed lines may indicate optional elements of the diagrams. The accompanying method claims present elements of the various blocks in an example order, and are not limited to the specific order or hierarchy presented in the claims, processes, and flowcharts.
[0147] The detailed description set forth herein describes various configurations in connection with the drawings and does not represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details for the purpose of providing a thorough explanation of various concepts. However, these concepts may be practiced without these specific details. In some instances, well known structures and components are shown in block diagram form in order to avoid obscuring such concepts.
[0148] Aspects of wireless communication systems, such as telecommunication systems, are presented with reference to various apparatuses and methods. These apparatuses and methods are described in the following detailed description and are illustrated in the accompanying drawings by various blocks, components, circuits, processes, call flows, systems, algorithms, etc. (collectively referred to as “elements” ) . These elements may be implemented using electronic hardware, computer software, or combinations thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.
[0149] An element, or any portion of an element, or any combination of elements may be implemented as a “processing system” that includes one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs) , central processing units (CPUs) , application processors, digital signal processors (DSPs) , reduced instruction set computing (RISC) processors, systems-on-chip (SoC) , baseband processors, field programmable gate arrays (FPGAs) , programmable logic devices (PLDs) , state machines, gated logic, discrete hardware circuits, and other similar hardware configured to perform the various functionality described throughout this disclosure. One or more processors in the processing system may execute software, which may be referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software components, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, or any combination thereof.
[0150] If the functionality described herein is implemented in software, the functions may be stored on, or encoded as, one or more instructions or code on a computer-readable medium, such as a non-transitory computer-readable storage medium. Computer-readable media includes computer storage media and can include a random-access memory (RAM) , a read-only memory (ROM) , an electrically erasable programmable ROM (EEPROM) , optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of these types of computer-readable media, or any other medium that can be used to store computer executable code in the form of instructions or data structures that can be accessed by a computer. Storage media may be any available media that can be accessed by a computer.
[0151] Aspects, implementations, and / or use cases described herein may be implemented across many differing platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, the aspects, implementations, and / or use cases may come about via integrated chip implementations and other non-module-component based devices, such as end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / purchasing devices, medical devices, artificial intelligence (AI) -enabled devices, machine learning (ML) -enabled devices, etc. The aspects, implementations, and / or use cases may range from chip-level or modular components to non-modular or non-chip-level implementations, and further to aggregate, distributed, or original equipment manufacturer (OEM) devices or systems incorporating one or more techniques described herein.
[0152] Devices incorporating the aspects and features described herein may also include additional components and features for the implementation and practice of the claimed and described aspects and features. For example, transmission and reception of wireless signals necessarily includes a number of components for analog and digital purposes, such as hardware components, antennas, RF-chains, power amplifiers, modulators, buffers, processor (s) , interleavers, adders / summers, etc. Techniques described herein may be practiced in a wide variety of devices, chip-level components, systems, distributed arrangements, aggregated or disaggregated components, end-user devices, etc., of varying configurations.
[0153] The description herein is provided to enable a person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects. Thus, the claims are not limited to the aspects described herein, but are to be interpreted in view of the full scope of the present disclosure consistent with the language of the claims.
[0154] Reference to an element in the singular does not mean “one and only one” unless specifically stated, but rather “one or more. ” Terms such as “if, ” “when, ” and “while” do not imply an immediate temporal relationship or reaction. That is, these phrases, e.g., “when, ” do not imply an immediate action in response to or during the occurrence of an action, but simply imply that if a condition is met then an action will occur, but without requiring a specific or immediate time constraint for the action to occur. The terms “may” , “might” , and “can” , as used in this disclosure, often carry certain connotations. For example, “may” refers to a permissible feature that may or may not occur, “might” refers to a feature that probably occurs, and “can” refers to a capability (e.g., capable of) . The phrase “For example” often carries a similar connotation to “may” and, therefore, “may” is sometimes excluded from sentences that include “for example” or other similar phrases.
[0155] Unless specifically stated otherwise, the term “some” refers to one or more. Combinations such as “at least one of A, B, or C” or “one or more of A, B, or C” include any combination of A, B, and / or C, such as A and B, A and C, B and C, or A and B and C, and may include multiples of A, multiples of B, and / or multiples of C, or may include A only, B only, or C only. Sets should be interpreted as a set of elements where the elements number one or more.
[0156] Unless otherwise specifically indicated, ordinal terms such as “first” and “second” do not necessarily imply an order in time, sequence, numerical value, etc., but are used to distinguish between different instances of a term or phrase that follows each ordinal term. Reference numbers, as used in the specification and figures, are sometimes cross-referenced among drawings to denote same or similar features. A feature that is exactly the same in multiple drawings may be labeled with the same reference number in the multiple drawings. A feature that is similar among the multiple drawings, but not exactly the same, may be labeled with reference numbers that have different leading numbers, but have one or more of the same trailing numbers (e.g., 206, 306, 406, etc., may refer to similar features in the drawings) . Hence, like numbers may refer to like actions.
[0157] Structural and functional equivalents to elements of the various aspects described throughout this disclosure that are known or later come to be known to those of ordinary skill in the art are expressly incorporated herein by reference and are encompassed by the claims. The words “module, ” “mechanism, ” “element, ” “device, ” and the like may not be a substitute for the word “means. ” As such, no claim element is to be construed as a means plus function unless the element is expressly recited using the phrase “means for. ” As used herein, the phrase “based on” shall not be construed as a reference to a closed set of information, one or more conditions, one or more factors, or the like. In other words, the phrase “based on A” , where “A” may be information, a condition, a factor, or the like, shall be construed as “based at least on A” unless specifically recited differently.
[0158] The following examples are illustrative only and may be combined with other examples or teachings described herein, without limitation.
[0159] Example 1 is a method of wireless communication at a UE, including receiving from a network entity control signaling configuring one or more MOs for monitoring paging control information in at least one of a PO or a PEI-O. A number of the MOs is different from a number of transmitted SSBs in the at least one of PO or PEI-O. The method also includes and receiving from the network entity the paging control information during the one or more MOs in the at least one PO or PEI-O.
[0160] Example 2 may be combined with Example 1, and further includes transmitting to the network entity information on UE capability including at least one of:support for the one or more MOs being associated with a subset of the transmitted SSBs; support for separate groupings of the transmitted SSBs for POs or PEI-O; support for one MO being associated with multiple transmitted SSBs; or support for updating an association between the one or more MOs and the transmitted SSBs in the at least one PO Or PEI-O.
[0161] Example 3 may be combined with any one of Examples 1 or 2, and includes that the control signaling configures the one or more MOs as a subset of candidate MOs that are one-to-one associated with the transmitted SSBs in the at least one PO or PEI-O.
[0162] Example 4 may be combined with any one of Examples 1-3, and includes that the control signaling configures the number of the MOs in one or more POs or PEI-Os, where receiving the paging control information during the one or more MOs includes determining the one or more MOs based on at least one of: the number of MOs configured in the one or more POs or PEI-Os; the number of transmitted SSBs in the one or more POs or PEI-Os; or an index of the one or more POs or PEI-Os.
[0163] Example 5 may be combined with any one of Examples 1-4, and includes that the control signaling configures separate groupings of the transmitted SSBs for the at least one PO or PEI-O.
[0164] Example 6 may be combined with any one of Examples 1-5, and includes that the control signaling configures at least one MO of the one or more MOs as associated with multiple SSBs of the transmitted SSBs in the at least one PO or PEI-O.
[0165] Example 7 may be combined with Example 6, and includes that the control signaling further configures at least one of: a number of the multiple SSBs associated with the at least one MO; indices of the multiple SSBs associated with the at least one MO; time-domain resource for the at least one MO; or frequency-domain resource for the at least one MO.
[0166] Example 8 may be combined with any one of Examples 6 or 7, and includes that receiving, from the network entity, the paging control information during the one or more MOs in the at least one PO or PEI-O includes: determining a demodulation reference signal (DMRS) associated with a PDCCH carrying the paging control information as QCLed with a first SSB of the multiple SSBs based on a first set of QCL parameters and a second SSB of the multiple SSBs based on a second set of QCL parameters.
[0167] Example 9 may be combined with any of Examples 6-8, and includes that the paging control information includes a PDCCH carrying a PEI. The PEI indicates availability of a TRS set QCLed with the multiple SSBs.
[0168] Example 10 may be combined with any of Examples 1-9, and includes that the transmitted SSBs include periodic SSBs having one or more first periodicities. The method further includes receiving from the network entity a second control signaling configuring an update to the transmitted SSBs for at least one of: a pattern of one or more of the transmitted SSBs; or updated second periodicities of one or more of the periodic SSBs.
[0169] Example 11 may be combined with any of Examples 1-9, and includes receiving, from the network entity, a second control signaling configuring an update to the one or more MOs for at least one of: MOs associated with a subset of the transmitted SSBs; a number of the MOs in one or more POs or PEI-Os; separate groupings of the transmitted SSBs for the at least one PO or PEI-O; MOs associated with the separate groupings of the transmitted SSBs; a number of a plurality of SSBs of the transmitted SSBs associated with one of the MOs; or indices of the number of the SSBs associated with one of the MOs.
[0170] Example 12 may be combined with any of Examples 10-11, and includes that the second control signaling further configures a time window to apply one or more MOs reconfigured based on the update to the transmitted SSBs or the MOs to receive the paging control information.
[0171] Example 13 may be combined with any of Examples 1-12, and includes that the paging control information includes at least one of: a PDCCH transmission scheduling a PDSCH carrying a paging message; or a PDCCH transmission for a PEI indicating a PDCCH for a paging frame associated with the PEI.
[0172] Example 14 is a method of wireless communication at a network entity, including: transmitting to a UE control signaling configuring one or more MOs for UE monitoring of paging control information in at least one of a PO or a PEI-O. A number of MOs is different from a number of transmitted SSBs in the at least one PO or PEI-O. The method also includes transmitting to the UE the paging control information during the one or more MOs in the at least one PO or PEI-O.
[0173] Example 15 may be combined with Example 14, and further includes that the control signaling configures the one or more MOs as a subset of candidate MOs that are one-to-one associated with the transmitted SSBs in the at least one PO or PEI-O.
[0174] Example 16 may be combined with any one of Examples 14-15, and includes that the control signaling configures the number of the MOs in one or more POs or PEI-Os so that the one or more MOs for UE monitoring of paging control information are based on at least one of: the number of MOs configured in the one or more POs or PEI-Os; the number of transmitted SSBs in the one or more POs or PEI-Os;or an index of the one or more POs or PEI-Os.
[0175] Example 17 may be combined with any one of Examples 14-16, and includes that the control signaling configures: separate groupings of the transmitted SSBs for the at least one PO or PEI-O; and at least one of the one or more MOs as associated with each of the separate groupings of the transmitted SSBs.
[0176] Example 18 may be combined with any one of Examples 14-17, and includes that the control signaling configures at least one MO of the one or more MOs as associated with multiple SSBs of the transmitted SSBs in the at least one PO or PEI-O, where the control signaling further configures at least one of: a number of the multiple SSBs associated with the at least one MO; indices of the multiple SSBs associated with the at least one MO; time-domain resource for the at least one MO; or frequency-domain resource for the at least one MO.
[0177] Example 19 may be combined with any one of Examples 14-18, and further includes transmitting to the UE a second control signaling configuring an update to the one or more MOs for at least one of: MOs associated with a subset of the transmitted SSBs; a number of the MOs in one or more POs or PEI-Os; separate groupings of the transmitted SSBs for the at least one PO or PEI-O; MOs associated with the separate groupings of the transmitted SSBs; a number of a plurality of the transmitted SSBs associated with one of the MOs; or indices of the number of the SSBs associated with one of the MOs.
[0178] Example 20 is an apparatus for wireless communication including a memory, a transceiver, and a processor coupled to the memory and the transceiver. The apparatus is configured to implement a method as in any one of Examples 1-19.
[0179] Example 21 may be combined with Example 5, and includes that the control signaling configures at least one MO of the one or more MOs as associated with each of the separate groupings of the transmitted SSBs.
[0180] Example 22 may be combined with Example 8, and includes that the first set of QCL parameters is same as the second set of QCL parameters.
[0181] Example 23 may be combined with Example 8, and includes that the second set of QCL parameters is a subset of the first set of QCL parameters.
[0182] Example 24 may be combined with Example 8, and includes that the QCL parameters includes at least one of: an average delay; a delay spread; a Doppler shift; a Doppler spread; spatial reception parameters; or an average gain.
[0183] Example 25 may be combined with Example 10, and includes that receiving from the network entity the paging control information during the one or more MOs in the at least one PO or PEI-O includes determining the MOs based on at least one of: the first periodicities of the periodic SSBs; or the updated second periodicities of one or more of the periodic SSBs.
[0184] Example 26 may be combined with Example 25, and includes that determining the MOs is based on: a minimum periodicity among the first periodicities of the periodic SSBs; or a minimum periodicity among the updated second periodicities of the one or more of the periodic SSBs and the first periodicities of remaining ones of the periodic SSBs.
[0185] Example 27 may be combined with Example 25, and includes that determining the MOs is based on: a maximum periodicity among the first periodicities of the periodic SSBs; or a maximum periodicity among the updated second periodicities of the one or more of the periodic SSBs and the first periodicities of remaining ones of the periodic SSBs.
[0186] Example 28 may be combined with any of Examples 26 or 27, and includes that determining the MOs is based on a subset of the transmitted SSBs in the at least one PO or PEI-O. The at least one PO or PEI is periodic with a period of one of the minimum periodicity or the maximum periodicity.
[0187] Example 29 may be combined with any of Examples 10 or 11, and includes that the second control signaling includes at least one of: RRC signaling; a MAC CE; or a DCI.
[0188] Example 30 may be combined with any of Examples 10 or 11, and includes that the second control signaling is received based on at least one of: a cell radio network temporary identifier (C-RNTI) ; a modulation and coding scheme C-RNTI (MCS-C-RNTI) ; a configured RNTI; or a pre-defined RNTI.
[0189] Example 31 may be combined with any of Examples 10 or 11, and further includes transmitting to the network entity an acknowledgement (ACK) indication or a non-acknowledgement (NACK) indication in response to the second control signaling.
[0190] Example 32 may be combined with Example 31, and includes that receiving from the network entity the paging control information during the one or more MOs in the at least one PO or PEI-O includes determining the MOs based on the update to the transmitted SSBs or the MOs for at least one of: a next PO after receiving the update; a next paging frame (PF) after receiving the update; a next PO after transmitting the ACK; or a next PF after transmitting the ACK.
[0191] Example 32 may be combined with any of Examples 10 or 11, and includes that the second control signaling further configures a time window to apply one or more MOs reconfigured based on the update to the transmitted SSBs or the MOs to receive the paging control information.
[0192] Example 33 may be combined with Example 13 and further includes receiving from the network entity at least one of: the PDSCH carrying the paging message; the PDCCH for the paging frame associated with the PEI; or a tracking reference signal (TRS) set QCLed with the transmitted SSBs.
[0193] Example 34 may be combined with Example 14, and includes receiving from the UE information on UE capability including at least one of: support for the one or more MOs being associated with a subset of the transmitted SSBs; support for separate groupings of the transmitted SSBs for POs or PEI-O; support for one MO being associated with multiple transmitted SSBs; or support for updating an association between the one or more MOs and the transmitted SSBs in the at least one PO Or PEI-O.
[0194] Example 35 may be combined with Example 18, and includes that transmitting to the UE the paging control information during the one or more MOs in the at least one PO or PEI-O includes: transmitting a DMRS associated with a PDCCH carrying the paging control information. The DMRS is QCLed with a first SSB of the multiple SSBs based on a first set of QCL parameters and a second SSB of the multiple SSBs based on a second set of QCL parameters.
[0195] Example 36 may be combined with Example 35, and includes that the first set of QCL parameters is same as the second set of QCL parameters.
[0196] Example 37 may be combined with Example 34, and includes that the second set of QCL parameters is a subset of the first set of QCL parameters.
[0197] Example 38 may be combined with any of Examples 34-37, and includes that the QCL parameters includes at least one of: an average delay; a delay spread; a Doppler shift; a Doppler spread; spatial reception parameters; or an average gain.
[0198] Example 39 may be combined with Example 18, and includes that the paging control information includes a PDCCH carrying a PEI. The PEI indicates availability of a TRS set QCLed with the multiple SSBs.
[0199] Example 40 may be combined with any of Examples 14-18, and includes that the transmitted SSBs include periodic SSBs having one or more first periodicities. The method further includes transmitting to the UE a second control signaling configuring an update to the transmitted SSBs for at least one of: a pattern of one or more of the transmitted SSBs; or updated second periodicities of one or more of the periodic SSBs.
[0200] Example 41 may be combined with Example 40, and includes that the control signaling configures the number of the MOs in one or more POs or PEI-Os so that the one or more MOs for UE monitoring of paging control information are based on at least one of: the first periodicities of the periodic SSBs; or the updated second periodicities of one or more of the periodic SSBs.
[0201] Example 42 may be combined with Example 41, and includes that the one or more MOs are based on: a minimum periodicity among the first periodicities of the periodic SSBs; or a minimum periodicity among the updated second periodicities of the one or more of the periodic SSBs and the first periodicities of remaining ones of the periodic SSBs.
[0202] Example 43 may be combined with Example 41, and includes that the one or more MOs are based on: a maximum periodicity among the first periodicities of the periodic SSBs; or a maximum periodicity among the updated second periodicities of the one or more of the periodic SSBs and the first periodicities of remaining ones of the periodic SSBs.
[0203] Example 44 may be combined with any of Examples 42 or 43, and includes that the one or more MOs are based on a subset of the transmitted SSBs in the at least one PO or PEI-O. The at least one PO or PEI is periodic with a period of one of the minimum periodicity or the maximum periodicity.
[0204] Example 45 may be combined with any of Example 19, or 40-44, and includes that the second control signaling includes at least one of: RRC signaling; a MAC CE; or a DCI.
[0205] Example 46 may be combined with any of Example 19, or 40-44, and includes that the second control signaling is transmitted based on at least one of: a cell radio network temporary identifier (C-RNTI) ; a modulation and coding scheme C-RNTI (MCS-C-RNTI) ; a configured RNTI; or a pre-defined RNTI.
[0206] Example 47 may be combined with Example 19, or 40-44, and further includes receiving from the UE one of an ACK indication or NACK indication in response to the second control signaling.
[0207] Example 48 may be combined with Example 47, and includes that transmitting to the UE the paging control information during the one or more MOs in the at least one PO or PEI-O includes determining the MOs based on the update to the transmitted SSBs or the MOs for at least one of: a next PO after transmitting the second control signaling; a next paging frame (PF) after transmitting the second control signaling; a next PO after receiving the ACK; or a next PF after receiving the ACK.
[0208] Example 49 may be combined with any of Examples 14-19, or 34-48, and includes that the paging control information includes at least one of: a PDCCH transmission scheduling a PDSCH carrying a paging message; or a PDCCH transmission for a PEI indicating a PDCCH for a paging frame associated with the PEI.
[0209] Example 50 may be combined with Example 49, and further includes transmitting to the UE at least one of: the PDSCH carrying the paging message; the PDCCH for the paging frame associated with the PEI; or a tracking reference signal (TRS) set QCLed with the transmitted SSBs.
Claims
1.A method of wireless communication at a user equipment (UE) (102) , comprising:receiving (204) , from a network entity (104) , control signaling configuring one or more monitoring occasions (MOs) for monitoring paging control information in at least one of a paging occasion (PO) or a paging early indication occasion (PEI-O) , a number of MOs being different from a number of transmitted synchronization signal blocks (SSBs) in the at least one PO or PEI-O; andreceiving (210) , from the network entity (104) , the paging control information during the one or more MOs in the at least one PO or PEI-O.2.The method of claim 1, further comprising transmitting (202) , to the network entity (104) , information on UE capability including at least one of:support for the one or more MOs being associated with a subset of the transmitted SSBs;support for separate groupings of the transmitted SSBs for POs or PEI-Os;support for one MO being associated with multiple of the transmitted SSBs; orsupport for updating an association between the one or more MOs and the transmitted SSBs in the at least one PO or PEI-O.3.The method of any of claims 1-2, wherein the control signaling configures the one or more MOs as a subset of candidate MOs that are one-to-one associated with the transmitted SSBs in the at least one PO or PEI-O.4.The method of any of claims 1-3, wherein the control signaling configures the number of MOs in one or more POs or PEI-Os, and wherein receiving (210) the paging control information during the one or more MOs comprises determining the one or more MOs based on at least one of:the number of MOs configured in the one or more POs or PEI-Os;the number of transmitted SSBs in the one or more POs or PEI-Os; oran index of the one or more POs or PEI-Os.5.The method of any of claims 1-4, wherein the control signaling configures separate groupings of the transmitted SSBs for the at least one PO or PEI-O.6.The method any of claims 1-5, wherein the control signaling configures at least one MO of the one or more MOs as associated with a plurality of SSBs of the transmitted SSBs in the at least one PO or PEI-O.7.The method of claim 6, wherein the control signaling further configures at least one of:a number of the plurality of SSBs associated with the at least one MO;indices of the plurality of SSBs associated with the at least one MO;time-domain resource for the at least one MO; orfrequency-domain resource for the at least one MO.8.The method of any of claims 6-7, wherein receiving (210) , from the network entity (104) , the paging control information during the MOs in the at least one PO or PEI-O comprises:determining a demodulation reference signal (DMRS) associated with a physical downlink control channel (PDCCH) carrying the paging control information as quasi-co-located (QCLed) with a first SSB of the plurality of SSBs based on a first set of QCL parameters and a second SSB of the plurality of SSBs based on a second set of QCL parameters.9.The method of any of claims 6-8, wherein the paging control information comprises a physical downlink control channel (PDCCH) carrying a paging early indication (PEI) , and wherein the PEI indicates availability of a tracking reference signal (TRS) set QCLed with the plurality of SSBs.10.The method of any of claims 1-9, wherein the transmitted SSBs comprise periodic SSBs having one or more first periodicities, the method further comprising:receiving (206) , from the network entity (104) , a second control signaling configuring an update to the transmitted SSBs for at least one of:a pattern of one or more of the transmitted SSBs; orupdated second periodicities of one or more of the periodic SSBs.11.The method of any of claims 1-9, further comprising:receiving (206) , from the network entity (104) , a second control signaling configuring an update to the one or more MOs for at least one of:MOs associated with a subset of the transmitted SSBs;a number of the MOs in one or more POs or PEI-Os;separate groupings of the transmitted SSBs for at least one PO or PEI-O;MOs associated with the separate groupings of the transmitted SSBs;a number of a plurality of SSBs of the transmitted SSBs associated with one of the MOs; orindices of the plurality of the SSBs associated with one of the MOs.12.The method of any of claims 10-11, wherein the second control signaling further configures a time window to apply one or more MOs reconfigured based on the update to the transmitted SSBs or the MOs to receive the paging control information.13.The method of any of claim 1-12, wherein the paging control information comprises at least one of:a physical downlink control channel (PDCCH) transmission scheduling a physical downlink shared channel (PDSCH) carrying a paging message; ora PDCCH transmission for a paging early indication (PEI) indicating a PDCCH for a paging frame associated with the PEI.14.A method of wireless communication at a network entity (104) , comprising:transmitting (204) , to a user equipment (UE) (102) , control signaling configuring one or more monitoring occasions (MOs) for UE (102) monitoring of paging control information in at least one of a paging occasion (PO) or a paging early indication occasion (PEI-O) , a number of MOs being different from a number of transmitted synchronization signal blocks (SSBs) in the at least one PO or PEI-O; andtransmitting (210) , to the UE (102) , the paging control information during the one or more MOs in the at least one PO or PEI-O.15.The method of claim 14, wherein the control signaling configures the one or more MOs as a subset of candidate MOs that are one-to-one associated with the transmitted SSBs in the at least one PO or PEI-O.16.The method of any of claims 14-15, wherein the control signaling configures the number of the MOs in one or more POs or PEI-Os so that the one or more MOs for UE (102) monitoring of paging control information are based on at least one of:the number of MOs configured in the one or more POs or PEI-Os;the number of transmitted SSBs in the one or more POs or PEI-Os; oran index of the one or more POs or PEI-Os.17.The method of any of claims 14-16, wherein the control signaling configures:separate groupings of the transmitted SSBs for the at least one PO or PEI-O; andat least one MO of the one or more MOs as associated with each of the separate groupings of the transmitted SSBs.18.The method of any of claims 14-17, wherein the control signaling configures at least one MO of the one or more MOs as associated with a plurality of SSBs of the transmitted SSBs in the at least one PO or PEI-O, wherein the control signaling further configures at least one of:a number of the plurality of SSBs associated with the at least one MO;indices of the plurality of SSBs associated with the at least one MO;time-domain resource for the at least one MO; orfrequency-domain resource for the at least one MO.19.The method of any of claims 14-18, further comprising:transmitting (206) , to the UE (102) , a second control signaling configuring an update to the one or more MOs for at least one of:MOs associated with a subset of the transmitted SSBs;a number of the MOs in one or more POs or PEI-Os;separate groupings of the transmitted SSBs for the at least one PO or PEI-O;MOs associated with the separate groupings of the transmitted SSBs;a number of a plurality of SSBs of the transmitted SSBs associated with one of the MOs; orindices of the plurality of SSBs associated with one of the MOs.20.An apparatus for wireless communication comprising a memory, a transceiver, and a processor coupled to the memory and the transceiver, the apparatus being configured to implement a method as in any of claims 1-19.
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