Paging occasion start determination

Abstract

Methods and apparatus, including computer program products, are provided for monitoring opportunities in downlink, such as paging opportunities. In some example embodiments, an apparatus may be provided that includes at least one processor and at least one memory including computer program code, the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to receive at least information indicative of a start of one or more paging occasions within at least a portion of a frame, and to monitor the one or more paging occasions in accordance with the received information. Related systems, methods, and articles of manufacture are also described.

Description

[0001] This application is a divisional application of an invention patent application with an application date of May 10, 2019, an application number of 201980031465.4, and an invention name of “Determination of the start of paging timing”.

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] This application claims the benefit of U.S. Provisional Patent Application No. 62 / 670,354, filed on May 11, 2018, and entitled “OPPORTUNITIVE PAGING START DETERMINATION,” which is incorporated herein in its entirety. Technical Field

[0004] The subject matter described herein relates to paging in wireless systems. Background Art

[0005] Cellular systems, including fifth generation (5G) systems, can support an increasing number of devices and services, including applications with a wide range of use cases and a variety of needs regarding bandwidth, latency, and reliability requirements. For example, multiple-input multiple-output technology can be used to increase throughput / data rates. The system can also be configured to support machine-to-machine communications and ultra-reliable low-latency services. Summary of the invention

[0006] Methods and apparatus, including computer program products, are provided for monitoring opportunities in a downlink, such as paging opportunities.

[0007] In some example embodiments, an apparatus may be provided that includes at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least receive information indicating the start of one or more paging occasions within at least a portion of a frame, and monitor the one or more paging occasions based on the received information.

[0008] In some variations, one or more features disclosed herein including the following features may optionally be included in any feasible combination. The information may include a bitmap indicating the start of one or more paging occasions in at least a portion of a subframe. The bitmap may indicate the start of one or more paging occasions. The bit length of the bitmap may depend on the subcarrier spacing used. The bitmap may indicate the starting time slot of one or more paging occasions. The bitmap may indicate each time slot in a paging frame. The bitmap may indicate each time slot in a subframe, a frame, an uplink-downlink mode, and / or an uplink-downlink cascade mode. The physical downlink control channel configuration may include information indicating the start of one or more paging occasions. The apparatus may include a user equipment or may be included in a user equipment.

[0009] In some further embodiments, an apparatus may be provided, comprising at least one processor and at least one memory comprising computer program code, wherein the at least one memory and the computer program code are configured to, together with the at least one processor, cause the apparatus to at least send information indicating the start of one or more paging occasions within at least a portion of a frame to a user equipment, and trigger the one or more paging occasions according to the sent information.

[0010] In some variants, one or more features disclosed herein including the following features may optionally be included in any feasible combination. The information may include a bitmap indicating the start of one or more paging occasions in at least a portion of a subframe. The bitmap may indicate the start of one or more paging occasions. The bit length of the bitmap may depend on the subcarrier spacing used. The bitmap may indicate the start time slot of one or more paging occasions. The bitmap may indicate each time slot in a paging frame. The bitmap may indicate each time slot in a subframe, a frame, an uplink-downlink mode, and / or an uplink-downlink cascade mode. The physical downlink control channel configuration may include information indicating the start of one or more paging occasions. The triggered one or more paging occasions may also cause the device to provide at least one or more paging occasions to the user equipment via information indicating the start of one or more paging occasions. The device may include a network node or may be included in a network node.

[0011] The above aspects and features can be implemented in systems, devices, methods and / or articles according to the desired configuration. The details of one or more variations of the subject matter described herein are set forth in the accompanying drawings and the following description. The features and advantages of the subject matter described herein will be clear from the specification and drawings and the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In the accompanying drawings,

[0013] Figure 1-Figure 3 depicts an example of a bitmap according to some example embodiments;

[0014] Figure 4 An example of a system including a user equipment receiving information explicitly indicating a paging occasion within a subframe is depicted according to some example embodiments;

[0015] Figure 5 depicts an example process for determining and providing information explicitly indicating a paging occasion within a subframe in accordance with some example embodiments;

[0016] Figure 6 depicts an example of an apparatus according to some example embodiments;

[0017] Figure 7depicts a block candidate position pattern according to some example embodiments; and

[0018] Figure 8 Depicted are example search spaces on a physical downlink control channel in accordance with some example embodiments.

[0019] Like labels are used to refer to the same or similar items in the drawings. DETAILED DESCRIPTION

[0020] In cellular systems, including fifth generation (5G) cellular systems, paging will be more complex than in previous cellular systems due to many features of 5G, such as multiple input multiple output technology (MIMO). As a result, the task of determining when there is a paging opportunity for monitoring paging by a user equipment (UE) is more complex.

[0021] For paging, the cellular network may provide information including parameters to the UE. These parameters may be received via signaling, broadcasting, etc., and these parameters may include paging occasion configurations, such as time offsets, durations, periodicity, etc. in frames. In addition, the physical downlink control channel (PDCCH) configuration may provide the UE with a search space configuration including monitoring opportunities within the paging occasion. For paging, the core resource set (CORESET) configuration may reuse the same configuration for the remaining minimum system information (RMSI) CORESET indicated in the physical broadcast channel (PBCH). In addition, the UE may adopt quasi-co-location (QCL) between the synchronization signal (SS) block, the paging downlink control information / indicator (DCI), and the paging message. In addition, the UE may not need to soft-combine multiple paging DCIs within one paging occasion. In addition, the air interface supported by the UE and the base station may also support sending so-called "short paging messages", such as systemInfoModification, cmas-Indication, and / or etws-Indication, as part of the paging DCI.

[0022] As described above, MIMO technology can be supported, so multi-beam operation may increase the complexity of paging. To this end, the time length (e.g., duration) of the paging occasion can be set to one period of the beam scan, and the same paging message can be repeated in all beams of the scanning pattern. In this way, a single paging occasion can cover the entire beam scan, so the UE's monitoring mode can also take this into account.

[0023] The UE may receive a system information block (SIB) such as SIB type 1 from the network. In this case, SIB 1 may provide the UE with information for enabling uplink (UL) and downlink (DL) slot configurations. For example, the UL / DL slot configuration may be determined via one or two cascaded slot patterns that are repeated in time to form subframes of a frame carried by the PDCCH. The configuration of each pattern indicates the slots of a subframe, which are defined as downlink slots ("D") containing only DL symbols, bidirectional (e.g., flexible "X") slots that allow both downlink and uplink symbols, or uplink-only slots ("U") containing only UL symbols. A slot may include one or more symbols.

[0024] A pattern may have a time period that is configured based in part on the subcarrier spacing to enable determination of the time slots within a subframe of a frame. The configuration for each pattern may provide a number (e.g., a number) of DL-only time slots (from the beginning of the time period), a number of DL symbols from the beginning of the flexible time slots, a number of UL-only time slots (from the end of the time period), and a number of UL symbols from the end of the flexible time slots. Time slots that are not indicated as DL-only time slots or UL-only time slots are all flexible time slots.

[0025] To further illustrate, a UE may be scheduled to receive in the downlink only in the DL symbol ("D") portion or the flexible symbol ("X") portion. Similarly, a UE may be scheduled to transmit only in the UL symbol ("U") portion or the flexible symbol ("X") portion. For flexible slots (which will be the remaining slots in the DL-only ("D") slots and the UL-only ("U") slots), the symbol partitioning in the flexible slot may be determined. This may be determined by determining the number of DL-only symbols (from the beginning of the slot) and UL-only symbols (from the end of the slot), while the remaining symbols in between may be considered flexible symbols.

[0026] 3GPP 38.213 explains that for random access channel (RACH) opportunity mapping, if a first higher layer parameter (e.g., tdd-UL-DL-ConfigurationCommon) is provided to the UE or a second higher layer parameter (e.g., tdd-UL-DL-ConfigurationCommon2) is also provided to the UE, then a valid physical RACH (PRACH) opportunity is an opportunity that includes uplink symbols or flexible symbols that are at least N times after the last downlink symbol or the last SS / PBCH block transmission symbol. gap Symbols start, where N gap Provided in a table, such as Table 1 below, as a function of the preamble subcarrier spacing value. For example, for preamble format B4, N gap =0.

[0027] Table 1

[0028]

[0029] Time domain resource allocation (RA) for the physical downlink shared channel (PDSCH) may be performed via a 4-bit resource allocation field of the DCI. The default interpretation of the resource allocation field may be determined according to a standard such as 3GPP TS 38.214, although the time domain resource allocation may be provided to the UE and configured at the UE via broadcast or dedicated signaling from a network such as a base station, including a new radio (NR) Node B (gNB). The supported PDSCH allocation sizes may be configured for type A primary synchronization channel (PSCH) mappings (3, ..., 14) and PDSCH type B (subslot-based scheduling) mappings (2, 4, or 7). The PDSCH mapping type may be provided by a PDSCH time domain resource allocation that may conform to a standard such as 3GPP TS38.214.

[0030] In Long Term Evolution (LTE), the Paging Frame (PF) calculation indicates where in the radio frame the UE needs to listen for paging. The paging occasion calculation may have subframe accuracy to enable the UE to listen for paging DCI (which is an indicator / information that allocates resources for paging messages).

[0031] In 5G New Radio (NR) systems, paging occasion calculations may not be as simple as in previous generations of wireless systems, where a fixed time division duplex (TDD) mode and a fixed numerology with respect to the frame structure are implemented. In the numerology of 5G NR, the subcarrier spacing of data can vary from 15kHz, 30kHz, 60kHz, and 120kHz, and these variations also affect the time slot allocation. In addition, compared to previous cellular systems, 5GNR's flexible TDD mode (where any time slot of a subframe can be configured as a downlink time slot, an uplink time slot, or a flexible time slot) may result in variations that make paging occasion determination more complex. In fact, if not performed correctly, the determination of paging occasions may result in discrepancies and waste of power and resources.

[0032] In some example embodiments, a network, such as a base station, NR gNB base station, etc., may provide information to a UE that explicitly defines or indicates which time slots of a subframe of a radio frame are utilized for paging occasion calculations. For example, after the UE learns of possible paging occasions, a calculation is then performed (by the network) to assign different UEs to different POs for the same paging frame (PF). This is done to ensure that not all UEs will listen to the same paging occasion (e.g., otherwise the size of the paging message would become too large to be transmitted because many UE identities would need to be present in the paging message).

[0033] In some example embodiments, a network such as a base station, gNB, etc. may provide a bitmap to a UE indicating which time slots are used for PO calculations. For example, for a semi-static UL / DL configuration, assuming 120kHz subcarrier spacing and a total periodicity of 20 milliseconds (ms), the length of the bitmap may be 160 bits to cover the entire UL / DL TDD time slot pattern, including repetitions of the pattern (e.g., 160 time slots with 120kHz subcarrier spacing in a 20ms period).

[0034] Alternatively or additionally, according to some example embodiments, the bitmap may depend on the subcarrier spacing used (e.g., for a 15kHz subcarrier spacing, the bitmap is only 20 bits). For example, different subcarrier spacings (SCS) may require different sized bitmaps to cover the entire period, so a 120kHz SCS bitmap may be 160 bits long, while a 15kHz subcarrier spacing (slot length of 1 ms) may be only 20 bits long to cover the entire period. In this way, different bitmaps are provided to the UE based on the SCS used by the UE.

[0035] Alternatively or additionally, according to some example embodiments, the network may use the configured TDD configuration (TDD-UL-DL-ConfigCommon-1&2 cascade) to obtain the complete TDD configuration so that only the bitmap is required to cover the repeated TDD UL / DL configuration. For example, in order to cover the entire scanning period, in the case of a 0.5ms time slot, the maximum time of the TDD configuration repetition is 20ms (10ms+10ms), in which case the bitmap will correspond to a 40-bit bitmap. The bitmap length can be optimized based on the subcarrier spacing and the length of the TDD configuration (for example, if a 1ms time slot and a 10ms TDD configuration, a 10-bit bitmap can be used). To further illustrate, the network will provide a bitmap to the UE based on the SCS and the known TDD mode length (for example, in the case of 15kHz, 1ms time slot and 10ms period of the TDD mode, a 10-bit bitmap is provided to the UE, and in the case of 120kHz, 0.125ms and 10ms period of the TDD mode, an 80-bit bitmap is provided to the UE).

[0036] Alternatively or additionally, the network may use the configured TDD configuration (TDD-UL-DL-ConfigCommon-1&2 cascade) to obtain the complete TDD configuration so that the duration of the paging frame (e.g., 10ms) is divided into blocks corresponding to the UL-DL configuration length (or cycle). However, the bitmap is used to indicate the starting position of the paging opportunity within the paging frame (so as to align with the start of the UL / DL mode). For example, the number (or number) of possible paging opportunity starting positions (in the paging frame) can be determined by:

[0037]

[0038] in is the length of the paging frame (e.g., 10 ms), It is the length of a single UL-DL slot pattern (e.g., 0.5ms), or the length of a concatenated pattern, which may be repeated throughout the beam scanning period. The number of bits required may be determined (eg, assuming a paging frame of 10 ms and a minimum UL-DL timeslot configuration length of 0.5 ms, the resulting bitmap is 20 bits).

[0039] Alternatively or additionally, the network may determine a bitmap that may include multiple paging occasion start positions within a UL / DL configuration period, where each "1" within the bitmap may correspond to a start position of a paging occasion in a paging frame.

[0040] Alternatively or additionally, the network may signal the UE the Nth possible time slot used for paging occasions in a paging frame. For illustration, a network such as a base station may signal the UE the first possible time slot and the third possible time slot used for paging. In this case, the UE knows the TDD UL / DL mode and sees that in the corresponding paging frame, the third time slot (which may be a DL time slot or a bidirectional time slot X) is considered a paging time slot, and then the subsequent 10th time slot, etc. are considered as paging occasions. This example assumes that the TDD mode can be divided into 10ms, and in different paging frames, different time slots are DL / UL.

[0041] Alternatively or additionally, the duration of the paging occasion may be determined as a UL-DL slot pattern period or a concatenated UL-DL slot pattern period or a multiple thereof, where the factor determining the number of periods may be determined via a specification or provided by higher layer signaling, and / or depend on other parameters, such as the subcarrier spacing used, the length of the paging frame and / or the period of the UL-DL slot pattern, etc.

[0042] Alternatively or additionally, for multiple UL-DL time slot pattern cycles or cascaded UL-DL time slot pattern cycles, the duration of the paging frame may be determined as a multiple, where the factor determining the number of cycles may be determined via the specification or provided by higher layer signaling, and / or depend on other parameters, such as the subcarrier spacing used, the number of paging occasions in the paging frame, etc.

[0043] According to some example embodiments, one or more of the above-mentioned bitmap implementations may be combined to provide a bitmap.

[0044] Figure 1 An example of a paging occasion bitmap 105 is depicted in accordance with some example embodiments. The bitmap 105 depicts paging occasion start positions marked as "1". In this example, the start position for the paging occasion will be the start of the tandem UL-DL pattern 110. In this example, the start length of the paging frame (PF) is 10 milliseconds (ms), and the length of the tandem UL-DL pattern 110 is 2.5 ms, so the paging occasion will appear twice in the paging frame, at the start of the tandem UL-DL pattern 110 and at the start of the third tandem UL-DL pattern 110. In this manner, the bitmap enables the user equipment to calculate the paging occasion.

[0045] Figure 2 Another example of a paging occasion bitmap 205 is depicted in accordance with some example embodiments. The bitmap 205 depicts a paging occasion start position marked as "1". In this example, the start position for the paging occasion will be the start of the tandem UL-DL pattern 210. In this example, the paging frame (PF) is 10 milliseconds (ms) long. The tandem UL-DL pattern 210 is 2.5 ms long. Figure 1 Differently, the time slot is 0.125 ms, so UL-DL mode 1 has a period of 1.25 ms, and UL-DL mode 2 has a period of 1.25 ms. Figure 1 , Figure 2 The bitmap 205 will define paging occasions at the start of the tandem UL-DL pattern 210 within a paging frame and at the start of the third tandem UL-DL pattern 210 within a paging frame.

[0046] Figure 3 Another example of a paging occasion bitmap 305 is depicted in accordance with some example embodiments. The bitmap 305 depicts paging occasion start positions (multiple) marked as "1". In this example, the "1" indicates the start position of each pattern in the concatenated pattern. For example, a value of "1" in the bitmap indicates that the start of UL-DL mode 2 is a paging occasion. In this example, the paging frame (PF) is 10 milliseconds (ms) long; the concatenated UL-DL pattern 210 is 10 ms long, and the time slot is 0.5 ms.

[0047] Figure 4 An example of a portion of a wireless system 400 including at least one user equipment 410 and at least one base station 450 is depicted in accordance with some example embodiments.

[0048] UE 410 may be configured to wirelessly couple to a radio access network served by a wireless access point such as base station 450, which may be referred to as a 5G gNB base station. Base station 450 may provide information 460 to UE 410 that explicitly indicates the start of a paging occasion in a frame. For example, information 460 may include a bitmap that explicitly indicates to UE 410 the start of a paging occasion at a subframe within a frame. Figure 1-Figure 3 An example of a bitmap 105-305 is described that signals the start of a paging occasion to a UE 410. When the UE 410 receives the information 460, the UE 410 may know when it may choose to monitor a paging occasion from the base station 450.

[0049] The base station 450 may be coupled to a core network, which may include an access and mobility management function (AMF), a access session management function (V-SMF), an access policy control function (v-PCF), a access network slice selection function (v-NSSF), a access user plane function (V-UPF) and / or other nodes.

[0050] Figure 5 An example of a process 500 of providing explicit information to a user equipment regarding the start of a paging occasion within a new radio frame is depicted in accordance with some example embodiments.

[0051] At 510, according to some example embodiments, a network node such as base station 450 may determine information indicating explicit paging occasions within a frame. For example, the network node may determine the information as a bitmap, such as bitmap 105-305. The bitmap indicates where in the frame UE 410 should start listening / monitoring for paging occasions.

[0052] At 515, according to some example embodiments, a network node such as base station 450 may provide information such as a bitmap indicating explicit paging occasions within a frame. For example, the network node may provide a bitmap such as bitmap 105-305 to UE 410 via a system information block such as SIB2.

[0053] At 520, according to some example embodiments, user equipment 410 may receive information, such as a bitmap, indicating explicit paging occasions within a frame. For example, the user equipment may receive information, such as a bitmap, via a system information block, such as SIB2.

[0054] At 540, according to some example embodiments, UE 410 may monitor paging occasions based on the information received at 520. Referring again to Figure 2 , the UE may monitor the paging occasion at the start of the tandem UL-DL pattern 210 in the paging frame and the paging occasion at the start of the third occurrence of the tandem UL-DL pattern 210 in the paging frame based on the bitmap 205 received at 520 .

[0055] In some example embodiments, the user equipment may be configured to at least receive information indicating the start of one or more paging occasions within at least a portion of a frame, and monitor the one or more paging occasions based on the received information. The information may include a bitmap indicating the start of one or more paging occasions in at least a portion of a subframe. The bitmap may indicate the start of one or more paging occasions. The bit length of the bitmap may depend on the subcarrier spacing used. The bitmap may indicate the starting time slot of one or more paging occasions. The bitmap may indicate each time slot in a paging frame. The bitmap may indicate each time slot in a subframe, a frame, an uplink-downlink mode, and / or an uplink-downlink cascade mode. The physical downlink control channel configuration may include information indicating the start of one or more paging occasions.

[0056] In some further embodiments, a network node (e.g., a base station, a 5G gNB, etc.) may be configured to at least send information indicating the start of one or more paging occasions within at least a portion of a frame to a user equipment, and trigger one or more paging occasions according to the information sent. The information may include a bitmap indicating the start of one or more paging occasions in at least a portion of a subframe. The bitmap may indicate the start of one or more paging occasions. The bit length of the bitmap may depend on the subcarrier spacing used. The bitmap may indicate the start time slot of one or more paging occasions. The bitmap may indicate each time slot in a paging frame. The bitmap may indicate each time slot in a subframe, a frame, an uplink-downlink mode, and / or an uplink-downlink cascade mode. The physical downlink control channel configuration may include information indicating the start of one or more paging occasions. The triggered one or more paging occasions may also cause the device to at least provide one or more paging occasions to the user equipment via the information indicating the start of one or more paging occasions. The device may include a network node or may be included in a network node.

[0057] Figure 6 A block diagram of an apparatus 10 is shown according to some example embodiments.

[0058] The apparatus 10 may represent a user equipment, such as the user equipment 410. The apparatus 10 or a portion thereof may be implemented in other network nodes including a base station (eg, the apparatus 450).

[0059] The device 10 may include at least one antenna 12 in communication with a transmitter 14 and a receiver 16. Alternatively, the transmitting antenna and the receiving antenna may be separate. The device 10 may also include a processor 20 configured to provide signals to and receive signals from the transmitter and receiver, respectively, and to control the functions of the device. The processor 20 may be configured to control the functions of the transmitter and receiver by affecting control signaling via electrical leads to the transmitter and receiver. Similarly, the processor 20 may be configured to control other elements of the device 10 by affecting control signaling via electrical leads connecting the processor 20 to other elements such as a display or a memory. The processor 20 may be implemented, for example, in a variety of ways, including circuit systems, at least one processing core, one or more microprocessors with (multiple) accompanying digital signal processors, one or more processors without accompanying digital signal processors, one or more coprocessors, one or more multi-core processors, one or more controllers, processing circuit systems, one or more computers, various other processing elements (including integrated circuits (e.g., application specific integrated circuits (ASICs), field programmable controller gate arrays (FPGAs)), etc.)), or some combination thereof. Therefore, although in Figure 6 2 is shown as a single processor, but in some example embodiments, processor 20 may include multiple processors or processing cores.

[0060] The apparatus 10 may be capable of operating with one or more air interface standards, communication protocols, modulation types, access types, etc. The signals sent and received by the processor 20 may include signaling information in accordance with the air interface standard of the applicable cellular system and / or any number of different wired or wireless networking technologies including, but not limited to, Wi-Fi, wireless local access network (WLAN) technologies such as Institute of Electrical and Electronics Engineers (IEEE) 802.11, 802.16, 802.3, ADSL, DOCSIS, etc. In addition, the signals may include voice data, user-generated data, user-requested data, etc.

[0061] For example, the device 10 and / or the cellular modem therein may be capable of operating according to various first generation (1G) communication protocols, second generation (2G or 2.5G) communication protocols, third generation (3G) communication protocols, fourth generation (4G) communication protocols, fifth generation (5G) communication protocols, Internet Protocol Multimedia Subsystem (IMS) communication protocols (e.g., Session Initiation Protocol (SIP)), etc. The device 10 may be capable of operating according to 2G wireless communication protocols IS-136, Time Division Multiple Access TDMA, Global System for Mobile Communications GSM, IS-95, Code Division Multiple Access CDMA, etc. In addition, for example, the device 10 may be capable of operating according to 2.5G wireless communication protocols General Packet Radio Service (GPRS), Enhanced Data GSM Environment (EDGE), etc. In addition, for example, the device 10 may be capable of operating according to 3G wireless communication protocols, such as Universal Mobile Telecommunications System (UMTS), Code Division Multiple Access 2000 (CDMA2000), Wideband Code Division Multiple Access (WCDMA), Time Division Synchronous Code Division Multiple Access (TD-SCDMA), etc. Additionally, the apparatus 10 may be capable of operating in accordance with 3.9G wireless communication protocols, such as Long Term Evolution (LTE), Evolved Universal Terrestrial Radio Access Network (E-UTRAN), etc. Additionally, for example, the apparatus 10 may be capable of operating in accordance with 4G wireless communication protocols, such as LTE-Advanced, 5G, etc., and similar wireless communication protocols that may be subsequently developed.

[0062] It should be understood that the processor 20 may include circuitry for implementing the audio / video and logic functions of the device 10. For example, the processor 20 may include a digital signal processor device, a microprocessor device, an analog-to-digital converter, a digital-to-analog converter, etc. The control and signal processing functions of the device 10 may be allocated between these devices according to their respective capabilities. The processor 20 may additionally include an internal voice encoder (VC) 20a, an internal data modem (DM) 20b, etc. In addition, the processor 20 may include functionality for operating one or more software programs, which may be stored in a memory. Generally, the processor 20 and the stored software instructions may be configured to cause the device 10 to perform actions. For example, the processor 20 may be capable of operating a connection program, such as a web browser. The connection program may allow the device 10 to transmit and receive network content such as location-based content according to protocols such as wireless application protocol, WAP, hypertext transfer protocol, HTTP, etc.

[0063] The device 10 may also include a user interface, including, for example, an earphone or speaker 24, a ringer 22, a microphone 26, a display 28, a user input interface, etc., which may be operatively coupled to the processor 20. As described above, the display 28 may include a touch-sensitive display, where a user may touch and / or make gestures to make selections, enter values, etc. The processor 20 may also include a user interface circuit system configured to control at least some functions of one or more elements of the user interface, such as the speaker 24, the ringer 22, the microphone 26, the display 28, etc. The processor 20 and / or the user interface circuit system including the processor 20 may be configured to control one or more functions of one or more elements of the user interface through computer program instructions (e.g., software and / or firmware) stored on a memory accessible to the processor 20 (e.g., volatile memory 40, non-volatile memory 42, etc.). The device 10 may include a battery for powering various circuits associated with the mobile terminal (e.g., a circuit for providing mechanical vibration as a detectable output). The user input interface may include devices that allow the apparatus 20 to receive data, such as a keyboard 30 (which may be a virtual keyboard presented on the display 28, or an externally coupled keyboard) and / or other input devices.

[0064] like Figure 6 As shown, the device 10 may also include one or more mechanisms for sharing and / or obtaining data. For example, the device 10 may include a short-range radio frequency (RF) transceiver and / or interrogator 64, so that data can be shared with and / or obtained from electronic devices based on RF technology. The device 10 may include other short-range transceivers, such as infrared (IR) transceivers 66, Bluetooth TM Wireless technology operating Bluetooth TM (BT) transceiver 68, wireless universal serial bus (USB) transceiver 70, Bluetooth TM Low energy transceiver, ZigBee transceiver, ANT transceiver, cellular device to device transceiver, wireless local area link transceiver, and / or any other short-range radio technology. For example, the device 10 and in particular the short-range transceiver may be capable of transmitting data to and / or receiving data from an electronic device in the vicinity of the device (such as within 10 meters). The device 10 including a Wi-Fi or wireless local area network networking modem may also be capable of transmitting and / or receiving data from an electronic device according to various wireless networking technologies, including 6LoWpan, Wi-Fi, Wi-Fi low power, WLAN technology, such as IEEE802.11 technology, IEEE 802.15 technology, IEEE802.16 technology, etc.

[0065] The device 10 may include a memory that may store information elements related to a mobile subscriber, such as a subscriber identity module (SIM) 38, a removable user identity module (R-UIM), an eUICC, a UICC, etc. In addition to the SIM, the device 10 may include other removable and / or fixed memory. The device 10 may include a volatile memory 40 and / or a non-volatile memory 42. For example, the volatile memory 40 may include a random access memory (RAM), which includes dynamic and / or static RAM, an on-chip or off-chip cache memory, etc. The non-volatile memory 42, which may be embedded and / or removable, may include, for example, a read-only memory, a flash memory, a magnetic storage device (e.g., a hard disk), a tape, an optical drive and / or a medium, a non-volatile random access memory (NVRAM), etc. Like the volatile memory 40, the non-volatile memory 42 may include a cache area for temporarily storing data. At least a portion of the volatile and / or non-volatile memory may be embedded in the processor 20. The memory may store one or more software programs, instructions, information, data, etc. that may be used by the apparatus to perform the operations disclosed herein, including one or more aspects of process 500. Alternatively or additionally, the apparatus may be configured to cause the operations disclosed herein with respect to base stations / WLAN access points and network nodes including UEs.

[0066] The memory may include an identifier that can uniquely identify the apparatus 10, such as an International Mobile Equipment Identity (IMEI) code. The memory may include an identifier that can uniquely identify the apparatus 10, such as an International Mobile Equipment Identity (IMEI) code. In an example embodiment, the processor 20 may be configured using computer code stored at the memory 40 and / or 42 to provide the operations disclosed herein with respect to the base station and the UE (e.g., the process 500 and / or other operations).

[0067] Some embodiments disclosed herein may be implemented in software, hardware, application logic, or a combination of software, hardware, and application logic. For example, the software, application logic, and / or hardware may reside on the memory 40, the control device 20, or an electronic component. In some example embodiments, the application logic, software, or instruction set is maintained on any of a variety of conventional computer-readable media. In the context of this document, a "computer-readable medium" may be any non-transitory medium that can contain, store, communicate, propagate, or transmit instructions for use by or in conjunction with an instruction execution system, apparatus, or device (such as a computer or data processor circuit system), examples of which are described in detail in the accompanying drawings. Figure 6 As depicted in , computer-readable media may include non-transitory computer-readable storage media, which may be any media that can contain or store instructions for use by or in connection with an instruction execution system, apparatus, or device (such as a computer).

[0068] The following provides some additional descriptions related to beam scanning in 5G New Radio. The UE can acquire time and frequency synchronization with the cell (and obtain the cell ID) by detecting the SS / PBCH block (SSB). The SSB may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a primary broadcast channel (PBCH), as well as a demodulation reference signal (DMRS) associated with the PBCH (e.g., see Section 4.1 of TS 38.213). The PSS and SSS may carry the cell ID via sequence initialization, and the PBCH may carry a master information block (MIB) including DMRS, SSB index, etc. To support beamforming, the SSBs may be sent to different spatial directions in a time division multiplexed manner. Figure 7 The candidate positions in a half frame (5 ms) for a certain use case of 30 kHz are shown in FIG. 1 (eg, see case B of TS 38.213).

[0069] The pattern of SSB transmitted in half-frame mode is repeated with a specific period (e.g., 5, 10, 20, 40, 80 or 160 ms). Accordingly, for system information block 1 (SIB1), the UE is configured to have a monitoring mode of Type0-PDCCH via MIB ("pdcch-ConfigSIB1"), thereby scheduling SIB1. This configuration provides the UE with the length of the control resource set (CORESET) in terms of the number of symbols {e.g., 1, 2, or 3}, the number of consecutive resource blocks (e.g., 24, 48, or 96}, the frequency location of the CORESET (related to the SSB location), and the mode and parameterization used for the monitoring mode. For example, for SS / PBCH and CORESET monitoring mode 1 where monitoring opportunities occur every 20 ms, the UE is provided with an offset (O) from the start of the radio frame (where the opportunities occur), and the number of possible monitoring opportunities per time slot, where a shift (M) places the monitoring opportunities corresponding in time to each SSB. Based on the detected SSB index, the information provided by the MIB, the UE can determine the monitoring opportunity (search space) corresponding to each SSB index. Figure 8 One implementation of search space locations (eg, paging occasions) is shown.

[0070] Without in any way limiting the scope, interpretation, or application of the claims appearing below, a technical effect of one or more of the example embodiments disclosed herein may be enhanced monitoring of paging.

[0071] Depending on the desired configuration, the subject matter described herein may be embodied in a system, apparatus, method, and / or article. For example, the base station and user equipment (or one or more components thereof) and / or the process described herein may be implemented using one or more of the following: a processor that executes program code, an application-specific integrated circuit (ASIC), a digital signal processor (DSP), an embedded processor, a field programmable gate array (FPGA), and / or a combination thereof. These various implementations may include implementations in one or more computer programs, which are executable and / or interpretable on a programmable system including at least one programmable processor, which may be dedicated or general-purpose, and which is coupled to receive data and instructions from a storage system, at least one input device, and at least one output device and transmit data and instructions thereto. These computer programs (also referred to as programs, software, software applications, applications, components, program codes, or codes) include machine instructions for programmable processors and may be implemented in high-level procedures and / or object-oriented programming languages ​​and / or in assembly / machine languages. As used herein, the term "computer-readable medium" refers to any computer program product, machine-readable medium, computer-readable storage medium, apparatus and / or device (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and / or data to a programmable processor, including a machine-readable medium that receives machine instructions. Similarly, systems that may include a processor and a memory coupled to the processor are also described herein. The memory may include one or more programs that cause the processor to perform one or more operations described herein.

[0072] Although some variations have been described in detail above, other modifications or additions are possible. In particular, in addition to the features and / or variations set forth herein, other features and / or variations may also be provided. Furthermore, the above implementations may involve various combinations and subcombinations of the disclosed features, and / or combinations and subcombinations of several other features disclosed above. Other embodiments may be within the scope of the appended claims.

[0073] If desired, the different functions discussed herein may be performed in different orders and / or simultaneously with each other. In addition, if desired, one or more of the above functions may be optional or may be combined. Although various aspects of some embodiments are stated in the independent claims, other aspects of some embodiments include other combinations of features from the described embodiments and / or dependent claims with features of the independent claims, rather than just the combinations explicitly listed in the claims. It should also be noted herein that although example embodiments are described above, these descriptions should not be understood in a restrictive sense. Instead, various changes and modifications may be made without departing from the scope of some embodiments as defined in the appended claims. Other embodiments may be within the scope of the appended claims. The term "based on" includes "at least based on". Unless otherwise noted, the use of the phrase "such as" means "such as, for example".

Claims

1. A communication device, comprising: at least one processor; as well as at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processor, cause the apparatus to at least: receiving information indicating a start of one or more paging occasions within at least a portion of a frame; as well as monitoring the one or more paging occasions based on the received information, wherein the information comprises a bitmap indicating the start of the one or more paging occasions in at least a portion of a subframe, The bit length of the bitmap depends on the subcarrier spacing used, and the bitmap is provided based on the subcarrier spacing and a known time division duplex TDD mode length.

2. The apparatus of claim 1, wherein the bitmap indicates the start of the one or more paging occasions.

3. The apparatus according to claim 1 or 2, wherein the bitmap indicates a starting time slot of the one or more paging occasions.

4. The apparatus according to claim 1 or 2, wherein the bitmap indicates each time slot in a paging frame.

5. The apparatus according to claim 1 or 2, wherein the bitmap indicates each time slot in a subframe, a frame, an uplink-downlink mode and / or an uplink-downlink tandem mode. 6 . The apparatus according to claim 1 , wherein the one or more paging occasions include one or more PDCCH monitoring occasions.

7. The apparatus according to claim 1 or 2, wherein the apparatus comprises a user equipment or is included in a user equipment.

8. A communication method, comprising: receiving, by a user equipment, information indicating a start of one or more paging occasions within at least a portion of a frame; as well as monitoring, by the user equipment, the one or more paging occasions according to the received information, wherein the information comprises a bitmap indicating the start of the one or more paging occasions in at least a portion of a subframe, The bit length of the bitmap depends on the subcarrier spacing used, and the bitmap is provided based on the subcarrier spacing and a known time division duplex TDD mode length.

9. The method of claim 8, wherein the bitmap indicates the start of the one or more paging occasions.

10. The method according to claim 8 or 9, wherein the bitmap indicates a starting time slot of the one or more paging occasions.

11. The method according to claim 8 or 9, wherein the bitmap indicates each time slot in a paging frame.

12. The method according to claim 8 or 9, wherein the bitmap indicates each time slot in a subframe, a frame, an uplink-downlink mode and / or an uplink-downlink tandem mode.

13. The method of claim 8 or 9, wherein a physical downlink control channel configuration comprises the information indicating the start of the one or more paging occasions.

14. A non-transitory computer readable medium comprising program code, the program code causing operations when executed, the operations comprising: receiving, by a user equipment, information indicating a start of one or more paging occasions within at least a portion of a frame; as well as monitoring, by the user equipment, the one or more paging occasions according to the received information, wherein the information comprises a bitmap indicating the start of the one or more paging occasions in at least a portion of a subframe, The bit length of the bitmap depends on the subcarrier spacing used, and the bitmap is provided based on the subcarrier spacing and a known time division duplex TDD mode length.

15. A communication device, comprising: means for receiving information indicating the start of one or more paging occasions within at least a portion of a frame; as well as means for monitoring said one or more paging occasions based on said received information, wherein the information comprises a bitmap indicating the start of the one or more paging occasions in at least a portion of a subframe, The bit length of the bitmap depends on the subcarrier spacing used, and the bitmap is provided based on the subcarrier spacing and a known time division duplex TDD mode length.

16. The apparatus of claim 15, further configured to provide means for any of the functions of claims 9 to 13.

17. A communication device, comprising: at least one processor; as well as at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processor, cause the apparatus to at least: sending information indicating a start of one or more paging occasions within at least a portion of a frame to a user equipment; as well as triggering one or more paging occasions according to the information sent, wherein the information comprises a bitmap indicating the start of the one or more paging occasions in at least a portion of a subframe, The bit length of the bitmap depends on the subcarrier spacing used, and the bitmap is provided based on the subcarrier spacing and a known time division duplex TDD mode length.

18. The apparatus of claim 17, wherein the bitmap indicates the start of the one or more paging occasions.

19. The apparatus according to claim 17 or 18, wherein the bitmap indicates a starting time slot of the one or more paging occasions.

20. The apparatus of claim 17 or 18, wherein the bitmap indicates each time slot in a paging frame.

21. The apparatus according to claim 17 or 18, wherein the bitmap indicates each time slot in a subframe, a frame, an uplink-downlink mode and / or an uplink-downlink tandem mode.

22. The apparatus of claim 17 or 18, wherein a physical downlink control channel configuration comprises the information indicating the start of the one or more paging occasions.

23. The apparatus according to claim 17 or 18, wherein the triggered one or more paging occasions further cause the apparatus to: provide at least the one or more paging occasions to the user equipment via the information indicating the start of the one or more paging occasions.

24. The apparatus according to claim 17 or 18, wherein the apparatus comprises or is comprised in a network node.

25. A communication method, comprising: sending information indicating a start of one or more paging occasions within at least a portion of a frame to a user equipment; as well as The network node triggers one or more paging occasions according to the information sent, wherein the information comprises a bitmap indicating the start of the one or more paging occasions in at least a portion of a subframe, The bit length of the bitmap depends on the subcarrier spacing used, and the bitmap is provided based on the subcarrier spacing and a known time division duplex TDD mode length.

26. The method of claim 25, wherein the bitmap indicates the start of the one or more paging occasions.

27. The method of claim 25 or 26, wherein the bitmap indicates a starting time slot of the one or more paging occasions.

28. The method of claim 25 or 26, wherein the bitmap indicates each time slot in a paging frame.

29. The method according to claim 25 or 26, wherein the bitmap indicates each time slot in a subframe, a frame, an uplink-downlink mode and / or an uplink-downlink tandem mode.

30. The method of claim 25 or 26, wherein a physical downlink control channel configuration comprises the information indicating the start of the one or more paging occasions.

31. The method of claim 25 or 26, wherein the triggering comprises: The one or more paging occasions are provided to the user equipment via the information indicating the start of the one or more paging occasions.

32. A non-transitory computer readable medium comprising program code, the program code causing operations when executed, the operations comprising: sending information indicating a start of one or more paging occasions within at least a portion of a frame to a user equipment; as well as The network node triggers one or more paging occasions according to the information sent, wherein the information comprises a bitmap indicating the start of the one or more paging occasions in at least a portion of a subframe, The bit length of the bitmap depends on the subcarrier spacing used, and the bitmap is provided based on the subcarrier spacing and a known time division duplex TDD mode length.

33. A communication device, comprising: means for sending information indicating the start of one or more paging occasions within at least a portion of a frame to a user equipment; as well as means for triggering one or more paging occasions according to the information sent, wherein the information comprises a bitmap indicating the start of the one or more paging occasions in at least a portion of a subframe, The bit length of the bitmap depends on the subcarrier spacing used, and the bitmap is provided based on the subcarrier spacing and a known time division duplex TDD mode length.

34. The apparatus of claim 33, further configured to provide means for any of the functions of claims 26 to 31.

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