Apparatus and method for supporting sib1 transmission mode switching
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ALCATEL LUCENT SHANGHAI BELL CO LTD
- Filing Date
- 2026-02-06
- Publication Date
- 2026-08-07
Smart Images
Figure CN122534531A_ABST
Abstract
Description
Technical Field
[0001] Embodiments of this disclosure relate to the telecommunications field, and more particularly to methods, apparatus, and computer-readable storage media for supporting System Information Block Type 1 (SIB1) transmission mode switching. Background Technology
[0002] In 3GPP (3rd Generation Partnership Project) cellular networks, Network Energy Saving (NES) is crucial for optimizing energy consumption within the cellular network.
[0003] The Radio Access Network (RAN) considers the majority of the energy consumed by a typical mobile communication system, with the radio unit being the most significant factor in total power consumption. RAN energy consumption includes the energy used by NodeBs, eNodeBs, and gNodeBs, as well as the energy used by associated infrastructure such as air conditioning, inverters, and rectifiers. It also includes the energy used by repeaters and all energy consumption associated with backhaul transmission. Summary of the Invention
[0004] The scope of protection sought by the various example embodiments is defined by the claims. The subject matter of the independent claims is provided according to some aspects. Other aspects are defined in the dependent claims. Example embodiments and features (if any) described in this specification that are not within the scope of the claims should be interpreted as examples helpful in understanding the various embodiments.
[0005] Other features and advantages of embodiments of this disclosure will also become apparent when read in conjunction with the accompanying drawings, which illustrate by way of example the principles of embodiments of this disclosure. Attached Figure Description
[0006] The embodiments disclosed herein are presented by way of example, and their advantages will be explained in more detail below in conjunction with the accompanying drawings.
[0007] Figure 1 An example of a wireless communication network is shown.
[0008] Figure 2 This is a schematic diagram illustrating the deployment of a cell including the example embodiments of this disclosure, in which NES cells may be implemented.
[0009] Figure 3 This is a schematic flowchart used to explain the SIB1 transmission mode with regard to subcarrier indexing.
[0010] Figure 4 The timing for switching between SIB broadcast mode and on-demand SIB1 transmission mode is shown.
[0011] Figure 5This is a schematic flowchart illustrating an example embodiment of an aspect of this disclosure.
[0012] Figure 6 and Figure 7 One embodiment of an aspect of this disclosure is shown.
[0013] Figure 8 An example of the device is shown.
[0014] Figure 9 An example of the device is shown.
[0015] In all the accompanying drawings, the same or similar reference numerals may denote the same or similar elements. Detailed Implementation
[0016] The following embodiments are merely exemplary. The principles of this disclosure will now be described with reference to some exemplary embodiments. It should be understood that these embodiments are described for illustrative purposes only and to assist those skilled in the art in understanding and implementing this disclosure, and do not imply any limitation on the scope of this disclosure. This disclosure described herein can be implemented in various ways other than those described below.
[0017] In the following description and claims, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.
[0018] References to "an embodiment," "embodiment," "example embodiment," etc., in this disclosure indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it should be understood that, whether explicitly described or not, it is within the knowledge of those skilled in the art to affect such a feature, structure, or characteristic in conjunction with other embodiments.
[0019] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of the exemplary embodiments, a first element may also be referred to as a second element, and similarly, a second element may also be referred to as a first element. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.
[0020] As used herein, “at least one of the following: ” and “at least one of ” and similar wording, where the list of two or more elements is connected by “and” or “or”, means at least any one element, or at least any two or more elements, or at least all elements.
[0021] As used herein, unless otherwise expressly stated, the “responding to A” execution step does not indicate that the step is executed immediately after “A” occurs, and one or more intermediate steps may be included.
[0022] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments. As used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that, when used herein, the terms “comprising,” “including,” “having,” “having,” “including,” and / or “containing” specify the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.
[0023] As used in this application, the term "circuit system" may refer to one or more of the following: (a) Hardware circuit implementation only (such as implementation only in analog and / or digital circuit systems) and (b) A combination of hardware circuitry and software, such as (if applicable): (i) A combination of (multiple) analog and / or digital hardware circuits and software / firmware, and (ii) Any part of a hardware processor (including (multiple) digital signal processors), software, and (multiple) memories, which work together to enable a device (such as a mobile phone or server) to perform various functions and (c) (Multiple) hardware circuits and / or (multiple) processors (such as (multiple) microprocessors or a portion of (multiple) microprocessors) that require software (e.g., firmware) to operate, but may not exist when operation does not require software.
[0024] This definition of "circuit system" applies to all uses of the term in this application, including in any claim. As another example, as used in this application, the term "circuit system" also covers only the implementation of hardware circuitry or a processor (or multiple processors) or portions thereof and their accompanying software and / or firmware. For example, if applicable to a particular claim element, the term "circuit system" also covers baseband integrated circuits or processor integrated circuits for mobile devices or similar integrated circuits in servers, cellular network devices, or other computing or network devices.
[0025] As used herein, the term "communication network" refers to a network that conforms to any suitable communication standard, such as New Radio (NR), Long Term Evolution (LTE), LTE-A Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), Narrowband Internet of Things (NB-IoT), etc. Furthermore, communication between terminal devices and network devices in a communication network can be performed according to any suitable generation of communication protocols, including, but not limited to, fourth-generation (4G), 4.5G, fifth-generation (5G), sixth-generation (6G) communication protocols and / or any other protocols currently known or to be developed in the future. Embodiments of this disclosure can be applied to various communication systems. Given the rapid development of communications, there will certainly be future types of communication technologies and systems that this disclosure can utilize. This should not be construed as limiting the scope of this disclosure to the systems described above.
[0026] As used herein, the term "network device" refers to a node in a communications network through which terminal devices access the network and receive services. Depending on the terminology and technology applied, a network device can refer to a network entity, base station (BS), or access point (AP), such as a Node B (NodeB or NB), evolved Node B (eNodeB or eNB), NR NB (also known as gNB), Radio Access Network (RAN) node, Next Generation RAN (NG-RAN) node, Remote Radio Unit (RRU), Radio Header (RH), Remote Radio Header (RRH), relay, Integrated Access and Backhaul (IAB) node, low-power node (such as femtoseconds, picoseconds), Non-Terrestrial Network (NTN) equipment or non-terrestrial network equipment (such as satellite network equipment, Low Earth Orbit (LEO) satellites, and Geosynchronous Orbit (GEO) satellites), airborne network equipment, and so on. In some example embodiments, the Radio Access Network (RAN) decoupled architecture includes a centralized unit (CU) and a distributed unit (DU) located at the IAB donor node. The IAB node includes a mobile termination (IAB-MT) portion, which behaves similarly to the UE to its parent node; and the DU portion of the IAB node behaves similarly to the base station to the next-hop IAB node.
[0027] The term "user equipment" refers to any terminal device capable of wireless communication. By way of example and not limitation, user equipment may also be referred to as communication equipment, user equipment (UE), subscriber station (SS), portable subscriber station, mobile station (MS), terminal equipment, or access terminal (AT). User equipment may include, but is not limited to, mobile phones, cellular phones, smartphones, Voice over IP (VoIP) phones, wireless local loop phones, tablets, wearable terminal devices, personal digital assistants (PDAs), portable computers, desktop computers, image capture terminal devices (such as digital cameras), gaming terminal devices, music storage and playback devices, in-vehicle wireless terminal devices, wireless endpoints, mobile stations, laptop embedded devices (LEEs), laptop-mounted devices (LMEs), USB dongles, smart devices, wireless client devices (CPEs), Internet of Things (IoT) devices, watches or other wearables, head-mounted displays (HMDs), vehicles, drones, medical devices and applications (e.g., remote surgery), industrial devices and applications (e.g., robots and / or other wireless devices operating in the context of industrial and / or automated processing chains), consumer electronics devices, devices operating on commercial and / or industrial wireless networks, etc. User equipment may also correspond to the mobile termination (MT) portion of an IAB node (e.g., a relay node). In the following description, the terms "user equipment," "communication equipment," "terminal," "terminal equipment," "user device," and "UE" may be used interchangeably.
[0028] As used herein, “resource,” “transmission resource,” “resource block,” “physical resource block” (PRB), “uplink resource” or “downlink resource,” “sidelink resource,” and “channel” can refer to any resource used to perform communication, such as communication between a user equipment and a network device, including time-domain resources, frequency-domain resources, spatial-domain resources, code-domain resources, or any other resources used to implement communication. In the following, unless otherwise expressly stated, resources in both the frequency and time domains will be used as examples of transmission resources used to describe some exemplary embodiments of this disclosure. It should be noted that the exemplary embodiments of this disclosure are equally applicable to other resources in other domains.
[0029] 1. Overview of Wireless Communication Networks
[0030] Figure 1 A simplified example of a wireless communication network is depicted, showing some physical and logical network entities. Figure 1 The connection shown can be a physical connection or a logical connection. It will be apparent to those skilled in the art that the wireless communication network may also include… Figure 1 Other physical and logical entities besides those shown.
[0031] However, the exemplary embodiments described herein are not limited to the wireless communication networks given as examples, but those skilled in the art can apply the embodiments described herein to other wireless communication networks that provide the necessary properties.
[0032] Figure 1 The example wireless communication network shown includes an access network (such as a radio access network (RAN)) and a core network 110.
[0033] Figure 1 User equipment (UEs) 100 and 102 are illustrated, configured to wirelessly connect to an access node (AN) 104 of an access network on one or more communication channels within a radio cell. AN 104 may be an evolved NodeB (eNB or eNodeB), a next-generation evolved NodeB (ng-eNB), or a next-generation NodeB (gNB or gNodeB), providing the radio cell. The wireless connection from the UE to the access node 104 (e.g., a radio link) may be referred to as an uplink (UL) or reverse link, and the wireless connection from the access node to the UE (e.g., a radio link) may be referred to as a downlink (DL) or forward link. UE 100 may also communicate directly with UE 102 via a wireless connection commonly referred to as a sidelink (SL), and vice versa. It should be understood that the access node 104, or its functionality, may be implemented using any entity suitable for providing such functionality, such as a node, host, server, or access point.
[0034] An access network may include more than one access node, in which case the access nodes may be configured to communicate with each other via wired or wireless links. These links between access nodes may be used to send and receive control plane signaling, and may also be used to route data from one access node to another.
[0035] An access node may include a computing device configured to control the access node's radio resources. An access node may also be referred to as a network entity, base station, base transceiver station (BTS), access point, cell site, radio access node, or any other type of node capable of wirelessly connecting to a UE (e.g., UE 100, 102). An access node may include or be coupled to a transceiver. From the transceiver of the access node, a connection may be provided to an antenna element that establishes a bidirectional radio link to UE 100, 102. The antenna element may include one or more antennas or antenna elements.
[0036] Access node 104 can also be connected to core network (CN) 110. Core network 110 may include evolved packet core (EPC) and / or fifth-generation core network (5GC). EPC may include network entities such as serving gateway (S-GW, for routing and forwarding data packets), packet data network gateway (P-GW) for providing UE connectivity to external packet data networks, and mobility management entity (MME). 5GC may include network functions such as user plane functions (UPF), access and mobility management functions (AMF), and location management functions (LMF).
[0037] The core network 110 can also communicate with one or more external networks 113, such as the public switched telephone network or the Internet, or utilize services provided by them. For example, in a 5G wireless communication network, the UPF of the core network 110 can be configured to communicate with an external data network via the N6 interface. In an LTE wireless communication network, the P-GW of the core network 110 can be configured to communicate with an external data network.
[0038] The illustrated UEs 100 and 102 are devices for which resources on an air interface can be allocated and assigned. UEs 100 and 102 may also be referred to as wireless communication devices, subscriber units, mobile stations, remote terminals, access terminals, user terminals, terminal equipment, or user equipment, to name just a few. A UE may be a computing device operating with or without a Subscriber Identity Module (SIM), including but not limited to the following types of computing devices: mobile phones, smartphones, personal digital assistants (PDAs), handheld devices, computing devices including wireless modems (e.g., alarms or measuring devices), laptop computers, desktop computers, tablets, game consoles, multimedia devices, redcap devices, wearable devices with radio components (e.g., watches, headphones, or glasses), sensors including wireless modems, or any computing device including a wireless modem integrated into a vehicle.
[0039] It should be understood that a UE can also be an almost entirely uplink-only device, an example of which could be a camera or camcorder that uploads images or video clips to the network. A UE can also be a device capable of operating in an Internet of Things (IoT) network, a scenario in which objects can be provided with the ability to transmit data over the network without human-to-human or human-to-computer interaction. User equipment can also leverage the cloud. In some applications, computation can be performed in the cloud or within another UE.
[0040] Wireless communication networks can also support the use of cloud services; for example, at least a portion of the core network operation can be performed as a cloud service (this is in...). Figure 1(Described by “Cloud” 114). Wireless communication networks may also include a central control entity, providing facilities for collaboration between wireless communication networks of different operators, such as spectrum sharing.
[0041] 5G enables the use of multiple-input multiple-output (MIMO) antennas in access nodes 104 and / or UEs 100, 102, far more base stations or access nodes than LTE networks (the so-called small cell concept), including macro base stations cooperating with smaller base stations, and employing a variety of radio technologies depending on service requirements, use cases, and / or available spectrum. 5G wireless communication networks can support a wide range of use cases and related applications, including video streaming, augmented reality, different data sharing methods, and various forms of machine-type applications such as (massive) machine-type communication (mMTC), including vehicle safety, various sensors, and real-time control.
[0042] In 5G wireless communication networks, access nodes and / or UEs can have multiple radio interfaces, namely sub-6GHz, cmWave, and mmWave, and can also be integrated with existing legacy radio access technologies such as LTE. Integration with LTE can be implemented, for example, in a system where macro coverage is provided by LTE, while 5G radio interface access can be aggregated from small cells to LTE. In other words, 5G wireless communication networks can support inter-RAT interoperability (such as LTE-5G) and inter-RI interoperability (interface interoperability between radios, such as sub-6GHz-cmWave-mmWave). One concept to consider for use in 5G wireless communication networks could be network slicing, where multiple independent and dedicated virtual subnets (network instances) can be created within essentially the same infrastructure to run services with different requirements for latency, reliability, throughput, and mobility.
[0043] In some example embodiments, an access node (e.g., access node 104) may include: a radio unit (RU) including a radio transceiver (TRX), i.e., a transmitter (Tx) and a receiver (Rx); one or more distributed units (DUs) 105, which may be used for so-called Layer 1 (L1) processing and real-time Layer 2 (L2) processing; and a central unit (CU) 108 (also referred to as a centralized unit), which may be used for non-real-time Layer 2 and Layer 3 (L3) processing. The CU 108 may be connected to one or more DUs 105, for example, via an F1 interface. Such embodiments of an access node can enable the centralization of the CU relative to the cell site and the DU, while the DU can be more distributed, or even retained at the cell site. The CU and DU together may also be referred to as a baseband or baseband unit (BBU). The CU and DU together may also be included in a radio access point (RAP).
[0044] CU 108 can be a logical node hosting the Radio Resource Control (RRC), Serving Data Adaptation Protocol (SDAP), and / or Packet Data Convergence Protocol (PDCP) for the NR protocol stack used by the access node. DU 105 can be a logical node hosting the Radio Link Control (RLC), Media Access Control (MAC), and / or Physical (PHY) layers for the NR protocol stack used by the access node. The operation of the DU can be at least partially controlled by the CU. It should also be understood that the functional allocation between DU 105 and CU 108 may vary depending on the implementation. CU may include a control plane (CU-CP), which can be a logical node hosting the control plane portions of the RRC and PDCP protocols for the NR protocol stack used by the access node. CU may also include a user plane (CU-UP), which can be a logical node hosting the user plane portion of the PDCP protocol and the SDAP protocol for the CU used by the access node.
[0045] Cloud computing systems can also be used to provide CU 108 and / or DU 105. CUs provided by cloud computing systems can be referred to as virtualized CUs (vCUs). In addition to vCUs, virtualized DUs (vDUs) provided by cloud computing systems can also exist. Furthermore, combinations can exist where DUs can be implemented on so-called bare-metal solutions, such as application-specific integrated circuits (ASICs) or customer-specific standard product (CSSP) system-on-chips (SoCs).
[0046] By leveraging Network Functions Virtualization (NFV) and Software-Defined Networking (SDN), edge cloud can be introduced into the access network (e.g., RAN). Using edge cloud may mean that access node operations are performed, at least partially, in a computing system coupled to the remote radio heads (RRHs) or radio units (RUs) of the access nodes. Access node operations can also be performed on distributed computing systems or cloud computing systems located at the access nodes. The application of cloud RAN architecture enables real-time RAN functions to be performed at the access network (e.g., in DU 105), while non-real-time functions can be performed centrally (e.g., in CU108).
[0047] It should also be understood that the allocation of functions between core network operations and access node operations in future wireless communication networks may differ from, or even not exist, compared to LTE, 5G, or 6G. Other technological advancements that may be used include big data and all-IP, which could transform how wireless communication networks are built and managed. 5G (or New Radio, NR) wireless communication networks can support multi-layered architectures, where multi-access edge computing (MEC) servers can be placed between the core network 110 and access nodes 104. It should be noted that MEC can also be applied to LTE wireless communication networks.
[0048] 5G wireless communication networks (“5G networks”) can also include non-terrestrial communication networks, such as satellite communication networks, to enhance or supplement the coverage of 5G radio access networks. For example, satellite communications can support the transmission of data between the 5G radio access network and the core network, thereby enabling wider network coverage. Possible use cases could be providing service continuity for machine-to-machine (M2M) or Internet of Things (IoT) devices or in-vehicle passengers, or ensuring the availability of services for critical communications and future rail / sea / air transport communications. Satellite communications can utilize geostationary orbit (GEO) satellite systems or low Earth orbit (LEO) satellite systems, particularly mega-constellations (systems in which hundreds of (nano) satellites are deployed). A given satellite 106 in a mega-constellation can cover several network entities supporting the satellites, which create terrestrial cells. Terrestrial cells can be created by ground relay access nodes or by access nodes 104 located on the ground or on satellites.
[0049] It is obvious to those skilled in the art that Figure 1 The access node 104 shown is merely an example of a portion of an access network (e.g., a radio access network), and in practice, an access network may include multiple access nodes, UEs 100 and 102 may have access to multiple radio cells, and the access network may also include other devices, such as physical layer relay access nodes or other entities. At least one of the access nodes may be a home eNodeB or a home gNodeB. A home gNodeB or a home eNodeB is an access node that can be used to provide indoor coverage in homes, offices, or other indoor environments.
[0050] In addition, within the geographical area of the access network (e.g., a radio access network), various types of radio cells and multiple radio cells can be provided. Radio cells can be macrocells (or umbrella cells), which can be large areas with diameters of up to tens of kilometers, or smaller cells such as microcells, femtocells, or picocells. Figure 1 Multiple access nodes can provide any type of these cells. A cellular wireless network can be implemented as a multi-layered access network comprising several types of wireless cells. In a multi-layered access network, one access node can provide one or more wireless cells, therefore multiple access nodes may be needed to provide such a multi-layered access network.
[0051] To meet the need for improved access network performance, the concept of "plug-and-play" access nodes can be introduced. Access networks capable of using "plug-and-play" access nodes, in addition to home eNodeBs or home gNodeBs, can also include home Node B gateways or HNB-GWs (Host Node B Gateways). Figure 1(Not shown in the image). An HNB-GW, which can be installed in the operator's access network, can aggregate traffic from a large number of home eNodeBs or home gNodeBs back to the operator's core network.
[0052] 2. Network Energy Saving (NES)
[0053] Figure 2 This is a schematic diagram illustrating the deployment of a cell including the example embodiments of this disclosure, in which NES cells may be implemented.
[0054] This disclosure may be based on the progress and discussions regarding version 19 (Rel-19) of the NES enhancements. References Figure 2 UE100 can obtain the UL WUS configuration from cell A. UE100 can then transmit uplink (UL) WUS on the NES cell based on this WUS configuration. UE100 can also receive on-demand SIB1 (OD-SIB1) from the NES cell.
[0055] Meanwhile, network device 104a can periodically transmit its own SIB1 at least on cell A. Network device 104b can manage and / or control NES cells. An NES cell is a cell that can transmit SIB1 in response to an uplink WUS from UE 100.
[0056] In this example, OD-SIB1 transmission is supported for UEs in idle / inactive mode. UL WUS can be transmitted using existing signals / channels (e.g., Physical Random Access Channel PRACH or Msg1).
[0057] NES cells can operate in one of the SIB1 transmission modes, such as SIB1 broadcast mode and on-demand SIB1 (OD-SIB1) transmission mode.
[0058] NES cells operating in OD-SIB1 transmission mode will not periodically broadcast SIB1 as in the traditional process. Instead, SIB1 will be provided on demand, i.e., based on a UE's request for transmission (either in an RRC idle or RRC inactive state). For example, UE100 will trigger SIB1 transmission by sending a Wake-Up Signal (WUS). This requires UE100 to be configured with resources and information for sending the WUS. Figure 2 The scenario is disclosed when UE 100 (e.g., a UE that supports NES) obtains UL WUS configuration from cell A (e.g., a normal cell that does not support NES), where cell A is an anchor cell or a coverage cell (a cell with regular SIB1 transmission).
[0059] NES cells operating in SIB broadcast mode will periodically broadcast SIB1 according to the conventional process. Therefore, UE 100 can receive SIB1 according to a predetermined period.
[0060] The embodiments disclosed herein are applicable to Figure 2 The non-independent cases shown are also applicable to the independent cases.
[0061] 3. Synchronization Signal Block (SSB)
[0062] Cell search is the process by which user equipment 100 (e.g., UE) obtains time and frequency synchronization with a cell and detects the cell physical layer cell identifier (PCI ID).
[0063] Cell search operations can be performed at: 1) when the user equipment is powered on; 2) in connected mode; 3) in idle mode (e.g., reselection); 4) between RATs to the NR system, etc. During the cell search process, the user equipment 100 can use NR synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)) and the physical broadcast channel (PBCH) to obtain the necessary information for accessing the cell.
[0064] The synchronization signal block (SSB) can also be referred to as the synchronization signal / PBCH (SS / PBCH) block. The SSB primarily includes the PSS, SSS, PBCH, and demodulation reference signal (DM-RS). The SSB can be used by user equipment for RSRP and RSRQ measurements.
[0065] In the time domain, the SSB may include four OFDM symbols, which are numbered in ascending order from 0 to 3 within the SSB, wherein the PSS, SSS, and PBCH of the associated DM-RS are mapped to the symbols, as given in Table 7.4.3.1-1 of TS 38.211.
[0066] In the frequency domain, an SSB can comprise 240 consecutive subcarriers, numbered in ascending order from 0 to 239 within the SSB. k and l This corresponds to the frequency and time index within an SSB.
[0067] quantity From public resource blocks The subcarrier offset from subcarrier #0 to the SSB, or, if applicable, the subcarrier offset of the smallest numbered subcarrier in the punched SSB, where, From higher-level parameters offsetToPointA Obtain.
[0068] Operations for shared spectrum channel access in FR2-2 (e.g., the range between 52,600 MHz and 71,000 MHz) and operations for non-shared spectrum channel access, The four least significant bits are determined by higher-level parameters. ssb- SubcarrierOffset (Given via MIB); and for FR1, The highest effective bit is determined by the PBCH payload. As defined in Clause 7.1.1 of TS 38.212.
[0069] For the operation of shared spectrum channel access in FR1 The four least significant bits are determined by higher-level parameters. ssb-SubcarrierOffset Give, and The highest effective bit is determined by the PBCH payload. Provided, as defined in Clause 7.1.1 of TS 38.212. If ,but ;otherwise, .
[0070] if ssb-SubcarrierOffset If not provided, The frequency difference between the SS / PBCH block and point A can be used to determine this.
[0071] The general characteristics of the Master Message Block (MIB) are as follows. Detailed information about the MIB is disclosed in section 5.2.1 of TS 38.331 and section 4.1 of TS 38.213.
[0072] The MIB is transmitted via the PBCH (which is transmitted as part of the SSB). The MIB is transmitted using an 80 ms period. For initial cell selection, UE 100 may assume that half-frames with SSBs occur at 2-frame periods. The MIB may include parameters required for decoding System Information Block Type 1 (SIB1).
[0073] Therefore, UE 100 can assume that the MIB Transmission Time Interval (TTI) is 80ms. However, this does not prevent the cell from transmitting SSB more frequently, for example, 20ms, within an 80ms time window, while the MIB payload remains constant. In embodiments of this disclosure, the MIB TTI may be referred to as the MIB transmission period or MIB transmission periodicity.
[0074] MIB can include the corresponding k SSBThe ssb-subcarrieroffset parameter, and the pdcchConfigSIB1 parameter which defines the bandwidth, common control resource set (CORESET), common search space, and necessary PDCCH parameters for PDCCH / SIB.
[0075] 4. SIB1 transmission mode and its switching
[0076] In the following sections, various aspects of this disclosure are explained in more detail. For the purpose of explaining these aspects, please refer to the following: Figure 1 and Figure 2 The disclosed technical features and their descriptions, as well as those described in sections 1 to 3 above, can be applied.
[0077] For OD-SIB1 operation, the switching between SIB1 broadcast mode and OD SIB1 transmission mode should be supported in version 19 (or later). Additionally, how the UE checks the current SIB1 broadcast mode and detects or is notified of the broadcast status for OD-SIB1 needs to be discussed.
[0078] For the switching of SIB1 transmission mode (or state) in NES cells, the following points can be considered: 1) If SIB1 is currently being broadcast or provided on demand, the UE will provide K in the NES cell. SSB The expected value; 2) How can the UE check the SIB1 transmission mode before requesting SIB1 for the cell; and / or 3) The MIB TTI is 80ms. This means that the MIB payload will not change every 80ms. However, the same MIB can be repeated every 20ms.
[0079] For point 1) and point 2). Figure 3 Provided. Figure 3 This is a schematic flowchart used to explain the subcarrier indexing of the SIB1 transmission mode.
[0080] exist Figure 3 In this context, it is assumed that UE 100 supports NES. Therefore, UE 100 has received WUS configuration (or SIB1 request configuration) from cell A (see [link to documentation]). Figure 2 ). NES-enabled UE 100 (hereinafter referred to as NES UE) can check the SIB1 transmission mode by using SSB based on the subcarrier offset parameter.
[0081] For example, refer to Figure 3 (A) When the subcarrier offset value (k) is obtained from the MIB of the received SSB SSB ) is smaller than the first reference value used for FR1 (e.g., k) SSB<24) or smaller than the second reference value used for FR2 (e.g., k SSB When <12), the SIB1 transmission mode of the NES cell is determined to be the same as that of traditional systems (e.g., 4G LTE or 5G), which is SIB1 broadcast mode. Then, the NES UE will obtain SIB1 using traditional methods. For example, the NES UE can obtain SIB1 by monitoring the SIB1 transmission period.
[0082] refer to Figure 3 (B) When the subcarrier offset value is larger than the first reference value used for FR1 (e.g., k SSB >23) or greater than the second reference value used for FR2 (e.g., k SSB When >11), UE 100 can determine that the current SIB1 transmission of the NES cell is in OD-SIB1 transmission mode. Therefore, UE 100 needs to monitor SIB1 to check whether it has been broadcast within a limited time window before requesting SIB1 for the cell. If the UE does not detect SIB1, the UE requests OD-SIB1 for the cell. This limited time window can be defined by the network device. For example, when the network device defines the time window as Y time slots, UE 100 can check whether SIB1 has been sent within Y time slots before the ULWUS timing.
[0083] For point 3), TS 38.212 specifies that data arrives at the coding unit in blocks of at most one every 80 ms, while TS 38.331 specifies that the SSB period is at least 80 ms and repeats within 80 ms. According to TS 38.331 and TS 38.212, UE100 can expect that the PBCH payload will not change during the same MIB transmission period (e.g., within 80 ms). Based on this, conventional UEs (primarily cell-edge UEs) can apply combination for SSB detection / decoding. For example, the UE can perform coherent combination or chase combination between PBCHs received during a single MIB transmission period.
[0084] To address the above considerations, a solution that does not affect legacy UEs (e.g., UEs that do not support NES) is recommended. To avoid impacting legacy UEs, network equipment can ensure the MIB transmission time (e.g., MIB TTI of 80ms). Due to k SSB As part of the MIB, network device 104 cannot switch between SIB1 broadcast mode and OD-SIB1 transmission mode with a period smaller than 80ms. This means that when the NES cell (see...) Figure 2 The operation is in OD-SIB1 transmission mode and the subcarrier offset value of SSB satisfies FR1 k. SSB >23 or FR2 of k SSBWhen the condition is >11, UE 100 assumes that during the MIB transmission period (e.g., 80ms), the subcarrier offset value (k) of the SSB is... SSB )same.
[0085] To avoid impacting traditional UEs and to ensure MIB transmission time (e.g., 80ms or 8 radio frames), network devices may consider using specific timing for switching from SIB1 broadcast mode to OD SIB1 transmission mode. Figure 4 The switching timing points between SIB broadcast mode and OD SIB1 transmission mode are shown.
[0086] refer to Figure 4 The duration of a MIB transmission period can be 80ms. A frame consists of 10 subframes, and each subframe is 1ms in size. Therefore, a frame is 10ms in size. Frame numbers (or indices) are in SFN units. SSB burst sets span half a frame. Figure 4 The first MIB transmission period comprises 8 frames (e.g., SFN #0 to SFN #7), and the second MIB transmission period comprises 8 frames (e.g., SFN #8 to SFN #15). Multiple MIB transmission periods exist within the radio resources allocated to the user equipment.
[0087] To determine the specific timing point, the system frame number (SFN) and the size or duration (M) of the MIB transmission period can be considered. More specifically, the starting timing point can be calculated as follows: (SFN) mod (M) = 0, where M = the size or duration of the MIB transmission period.
[0088] For example, when M=80ms, SFN mod 8=0. Therefore, the starting timing point (in SFN units) can be SFN #0, SFN #8, SFN #16, etc. Thus, the starting timing point can distinguish MIB transmission periods. The NES UE can determine and validate the SIB1 transmission mode of the NES cell for each MIB transmission period.
[0089] Therefore, an NES UE with an SIB1 request configuration intended to send a request to OD-SIB1 should check at least every 80ms based on k derived from the MIB. SSB The SIB1 transmission mode is used. This means that network devices in an NES cell may change the SIB1 transmission mode at the initial timing point. However, the SIB1 transmission mode is maintained during each MIB transmission period.
[0090] In one embodiment of this disclosure, if the NES UE has an SIB1 request configuration (e.g., WUS configuration) for the NES cell, the NES UE is expected to reacquire the MIB at least every 80ms (i.e., the MIB transmission period).
[0091] In one embodiment of this disclosure, if the NES UE has an SIB1 request configuration for the NES cell, the NES UE may expect the OD-SIB1 transmission mode to be switched (or changed) in multiples of 80ms.
[0092] Alternatively, the switching duration of the OD-SIB1 transmission mode may not be the same as the OD-SIB1 transmission window (or MIB transmission period). For example, the switching duration of the OD-SIB1 transmission mode could be x. A specific time point (x is a predetermined integer value greater than or equal to 1).
[0093] In one embodiment of the present disclosure, if the NES UE has an SIB1 request configuration for the NES cell and the NES UE intends to send an SIB1 request to the NES cell within an 80ms MIB TTI (by sending WUS), the UE may assume that the cell's OD-SIB1 transmission mode cannot be changed during this window period (i.e., within the current MIB transmission period).
[0094] In one embodiment of this disclosure, the NES UE can reacquire the MIB to check the SIB1 transmission mode.
[0095] In one embodiment of this disclosure, the NES UE may assume that the number of time slots used for the OD-SIB1 transmission window is equal to the number of remaining time slots within 80ms of the current MIB TTI.
[0096] 4.1 Exemplary Embodiments of this Disclosure
[0097] Figure 5 This is a schematic flowchart illustrating an example embodiment of an aspect of this disclosure.
[0098] refer to Figure 5 User equipment 100, a first cell managed by network device 104a, and a second cell managed by network device 104b are disclosed. The first cell may be... Figure 2 Community A, and the second community can be Figure 2 NES cell. User equipment 100 can be Figures 1 to 4 UE 100 (e.g., 6G and / or NES-enabled UE). There can be more than one user equipment (not shown) in the cell. Network device 104b supports NES (see [link to network device 104b]). Figure 2In other words, this embodiment is applicable to... Figure 2 The situation explained in the text.
[0099] refer to Figure 5 Method A1 includes steps S505, S510, and S515, which are performed by a device (e.g., user equipment 100). The device performing method A1 may be or may be included in user equipment 100 supporting NES cells.
[0100] The apparatus 100 for performing method A1 may include at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to perform at least one of the following methods A1 to A10.
[0101] The apparatus 100 for performing method A1 may include one or more components for performing at least one of methods A1 to A10. Hereinafter, the apparatus is referred to as user equipment 100.
[0102] In step S505, user equipment 100 receives a wake-up signal (WUS) configuration from the first cell 104a.
[0103] At step S510, user equipment 100 receives from the second cell 104b a value including a subcarrier offset (e.g., k). SSB Synchronization signal block (SSB) related to information; and
[0104] At step S515, user equipment 100 determines (or checks) the System Information Block Type 1 (SIB1) transmission mode for the current Master Information Block (MIB) transmission period of the second cell. The SIB1 transmission mode is checked based on at least one of the following: System Frame Number (SFN), size of the MIB transmission period, duration, or subcarrier offset value. The SIB1 transmission mode can be SIB1 broadcast mode or on-demand (OD) SIB1 mode.
[0105] As method A2, the information related to the carrier offset value of A1 may include at least one of the following: - The SSB subcarrier offset field (ssb-SubcarrierOffset) of the MIB included in the SSB; or - Physical Broadcast Channel (PBCH) payload of SSB.
[0106] As method A3, determining the SIB1 transmission mode of A1 or A2 may further include the following steps: - Determine the SFN based on the PBCH of the SSB; and - Determine the time point of the MIB transmission period based on SFN and MIB transmission periods.
[0107] The SFN can be determined based on the PBCH. The PBCH payload includes the MIB payload and 8 bits. Some of these bits are used for timing. For example, 6 bits for the SFN are derived from the MIB, and 4 bits are derived from the 8 bits of the PBCH payload. Therefore, a total of 10 bits can indicate the SFN, ranging from 0 to 1023. The time point (or timing point, start timing point) can be determined based on... Figure 4 The embodiments described in the corresponding explanatory section are calculated.
[0108] As method A4, determining the SIB1 transmission mode using any of methods A1 to A3 may further include the following steps: - Determine whether the SIB1 transmission mode is valid during the current MIB transmission period from the point in time.
[0109] The validity of the SIB1 transmission mode can be determined by at least one MIB transmission period (80 ms) or by an integer multiple of the MIB transmission period (n). (80ms, n = a predetermined integer value greater than or equal to 1) is associated. User equipment 100 has a WUS configuration and may be camped in a second cell. Therefore, user equipment 100 assumes that the current SIB1 transmission mode is OD-SIB1 transmission mode. Therefore, user equipment 100 can determine whether the assumed SIB1 transmission mode (i.e., OD-SIB1 transmission mode) is valid.
[0110] As method A5, the SIB1 transmission mode of any of methods A1 to A4 can be further determined by comparing the subcarrier offset value with a first reference value (FR1) for frequency range 1 or a second reference value (FR2) for frequency range 2. The first reference value can be set to 24 or 23. The second reference value can be set to 12 or 11.
[0111] As method A6, the SIB transmission mode of any one of methods A1 to A5 can be maintained at least during the current MIB transmission period from that point in time.
[0112] As method A7, the SIB transmission mode of any one of methods A1 to A6 can be determined for the corresponding MIB transmission period.
[0113] As method A8, the user device 100 of any of methods A1 to A7 can also be made to perform the following steps: - Receive at least one SSB in each MIB transmission period.
[0114] As method A9, if the SIB transmission mode is OD SIB1 mode, then the user equipment 100 of any of methods A1 to A8 can also be made to perform the following steps: - Send an SIB1 request to the second cell 104b according to the WUS configuration (e.g., WUS); and - In response to the SIB1 request, receive on-demand SIB1 from the second cell 104b.
[0115] For example, in method A10, if the SIB1 transmission mode is SIB1 broadcast mode, the user equipment 100 of any of methods A1 to A8 can also be made to perform the following steps: - Receive SIB1 broadcast by the second cell.
[0116] To implement this disclosure, a computer program includes instructions that, when executed by a user device 100 (e.g., the apparatus), cause the user device 100 to perform any one of methods A1 to A10. In this case, a computer-readable storage medium may store the computer program. The computer-readable storage medium may be a non-transitory computer-readable medium.
[0117] Figure 6 and Figure 7 This is a schematic flowchart illustrating an example embodiment of an aspect of this disclosure.
[0118] In the following text, when aspects of this disclosure are applied... Figures 2 to 4 The example will be explained later.
[0119] User equipment 100 may be camped in the first cell (e.g., cell A).
[0120] At S605, user equipment 100 can receive WUS configuration (e.g., SIB1 request configuration) from network equipment 104a of the first cell.
[0121] User equipment 100 can obtain the pdcchConfigSIB1 parameter from the WUS configuration.
[0122] User equipment 100 can move to the second cell (i.e., NES cell) area and reselect the second cell.
[0123] At S610, user equipment 100 can receive an SSB, which includes parameters related to the subcarrier offset (e.g., k). SSB (Related information.)
[0124] User equipment 100 can determine (or derive) k based on this information. SSB .
[0125] At S615, user equipment 100 can determine the SFN based on the SSB. The method for determining the SFN can be found in [reference needed]. Figure 5 Step S515.
[0126] At S620, user equipment 100 can determine the start time point of the MIB transmission period. The determination of the start time point can be referenced... Figure 4 And its explanatory section.
[0127] At S625, User Equipment 100 can determine whether the SIB1 transmission mode is valid during the MIB transmission period. User Equipment 100 has now received the WUS configuration and is camped on a second cell supporting NES. Therefore, User Equipment 100 assumes that the SIB1 transmission mode of the NES cell is the OD-SIB1 transmission mode. Therefore, User Equipment 100 can determine whether the SIB1 transmission mode is valid during the current MIB transmission period after the start timing point.
[0128] User equipment 100 can use a device with k SSB The SSB is used to determine the SIB1 transmission mode of the second cell and the validity of the SIB1 transmission mode. For example, if the second cell's k SSB If FR1 is greater than 23 or FR2 is greater than 11, then user equipment 100 determines that the SIB1 transmission mode of the second cell is OD-SIB1 mode.
[0129] At step S705, if the second cell is in OD-SIB1 mode, the user equipment can send UL WUS to the network device 104b of the second cell.
[0130] In step S710, network device 104b may send a random access response message to user equipment 100.
[0131] At step S715, network device 104b may send OD-SIB1 in response to the received WUS.
[0132] When the second cell is in SIB1 broadcast mode, the user equipment 100 does not send WUS to the second cell and monitors SIB1 based on the SIB1 broadcast cycle.
[0133] After the current MIB transmission period, the user equipment 100 can reacquire the MIB in each MIB transmission period to check the SIB1 transmission mode for each MIB transmission period.
[0134] Figure 8An example of device 800 is shown, which includes components for performing one or more of the example embodiments described above. For example, device 800 may be, include, or be incorporated into user equipment 100. Device 800 can perform... Figures 1 to 7 The operation was made public in China.
[0135] The device 800 may include a circuit system or chipset suitable for implementing one or more of the example embodiments described above. For example, the device 800 may include at least one processor 810. The at least one processor 810 interprets instructions (e.g., computer program instructions) and processes data. The at least one processor 810 may include one or more programmable processors. The at least one processor 810 may include programmable hardware with embedded firmware and may alternatively or additionally include one or more application-specific integrated circuits (ASICs).
[0136] At least one processor 810 is coupled to at least one memory 820. The at least one processor is configured to read and write data from the at least one memory 820. The at least one memory 820 may include one or more memory cells. Memory cells may be volatile or non-volatile. It should be noted that there may be one or more non-volatile memory cells and one or more volatile memory cells, or alternatively, one or more non-volatile memory cells, or alternatively, one or more volatile memory cells. Volatile memory may be, for example, random access memory (RAM), dynamic random access memory (DRAM), or synchronous dynamic random access memory (SDRAM). Non-volatile memory may be, for example, read-only memory (ROM), programmable read-only memory (PROM), electrically erasable programmable read-only memory (EEPROM), flash memory, optical storage, or magnetic storage. Generally, memory may be referred to as a non-transitory computer-readable medium. As used herein, the term "non-transitory" refers to limitations inherent in the medium itself (i.e., tangible rather than tactile), rather than limitations on the persistence of data storage (e.g., RAM and ROM). At least one memory 820 stores computer-readable instructions that are executed by at least one processor 810 to perform one or more of the above embodiments. For example, non-volatile memory stores the computer-readable instructions, while at least one processor 810 uses volatile memory to temporarily store data and / or instructions to execute these instructions. The computer-readable instructions may refer to computer program code.
[0137] Computer-readable instructions may have been pre-stored in at least one memory 820, or alternatively, they may be received by means of an electromagnetic carrier signal, and / or copied from a physical entity such as a computer program product. At least one processor 810 executes the computer-readable instructions, causing the means 800 to perform one or more of the aspects of this disclosure described above. That is, at least one processor and at least one memory storing the instructions may provide components for providing or causing execution of any of the methods and / or blocks described above.
[0138] The device 800 may also include or be connected to an input unit 830. The input unit 830 may include one or more interfaces for receiving input. These interfaces may include, for example, one or more temperature, motion, and / or orientation sensors, one or more cameras, one or more accelerometers, one or more microphones, one or more buttons, and / or one or more touch detection units. Furthermore, the input unit 830 may include interfaces through which external devices can be connected.
[0139] The device 800 may also include an output unit 840. The output unit may include or be connected to one or more displays capable of displaying visual content, such as a light-emitting diode (LED) display, a liquid crystal display (LCD), and / or a liquid crystal on silicon (LCoS) display. The output unit 840 may also include one or more audio outputs. These audio outputs may be, for example, speakers.
[0140] Device 800 also includes a connection unit 850. Connection unit 850 enables wireless connectivity with one or more external devices. Connection unit 850 includes at least one transmitter and at least one receiver, which may be integrated into device 800 or connected to it. The at least one transmitter includes at least one transmitting antenna, and the at least one receiver includes at least one receiving antenna. Connection unit 850 may include an integrated circuit or a set of integrated circuits that provides wireless communication capabilities to device 800. Alternatively, the wireless connection may be a hardwired application-specific integrated circuit (ASIC). Connection unit 850 may also provide components for performing at least some of the blocks or functions in one or more of the example embodiments described above. Connection unit 850 may include one or more components controlled by a corresponding control unit, such as: a power amplifier, a digital front-end (DFE), an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), a frequency converter, a (de)modulator, and / or an encoder / decoder circuit system.
[0141] It should be noted that device 800 may also include Figure 8 Various components are not shown. These components can be hardware components and / or software components.
[0142] The device 800 can perform the above embodiments or can be applied using the above embodiments. More specifically, the device 800 can be a first user equipment 80 or a second user equipment 102, and the user equipment 100, 102 can be configured to perform operations using... Figures 1 to 7 One of the methods of explanation.
[0143] Figure 9 An example of apparatus 900 is shown, which includes components for performing one or more of the example embodiments described above. For example, apparatus 900 may be, or be included in, a network entity or network device 104, 104a or 104b, and supports the embodiments and examples described above.
[0144] This network equipment can also be referred to as, for example, network element, next-generation radio access network (NG-RAN) node, NodeB, eNB, gNB, base transceiver station (BTS), base station, NR base station, 5G base station, access node, access point (AP), cell site, relay node, repeater, integrated access and backhaul (IAB) node, IAB donor node, distributed unit (DU), central unit (CU), baseband unit (BBU), radio unit (RU), radio head, remote radio head (RRH), or transmit and receive point (TRP).
[0145] Apparatus 900 may include, for example, a circuit system or chipset suitable for implementing one or more of the example embodiments described above. Apparatus 900 may be an electronic device, including one or more electronic circuit systems. For example, apparatus 900 may include a communication control circuit system 910, such as at least one processor, and at least one memory 920 storing instructions 922 that, when executed by the at least one processor, cause apparatus 900 to perform one or more of the example embodiments described above. For example, such instructions 922 may include computer program code (software). The at least one processor and the at least one memory storing the instructions may provide components for providing or causing any of the methods and / or blocks described above.
[0146] A processor is coupled to memory 920. The processor is configured to read and write data from memory 920. Memory 920 may include one or more memory cells. Memory cells may be volatile or non-volatile. It should be noted that there may be one or more non-volatile memory cells and one or more volatile memory cells, or alternatively, one or more non-volatile memory cells, or alternatively, one or more volatile memory cells. Volatile memory may be, for example, random access memory (RAM), dynamic random access memory (DRAM), or synchronous dynamic random access memory (SDRAM). Non-volatile memory may be, for example, read-only memory (ROM), programmable read-only memory (PROM), electrically erasable programmable read-only memory (EEPROM), flash memory, optical storage, or magnetic storage. Generally, memory may be referred to as a non-transitory computer-readable medium. As used herein, the term "non-transitory" refers to the limitations of the medium itself (i.e., tangible, not tactile), rather than limitations on the persistence of data storage (e.g., RAM and ROM). Memory 920 stores computer-readable instructions that are executed by a processor to perform one or more of the above embodiments. For example, non-volatile memory stores computer-readable instructions, while the processor uses volatile memory to temporarily store data and / or instructions to execute those instructions.
[0147] The computer-readable instructions may have been pre-stored in memory 920, or alternatively, they may be received by the device via an electromagnetic carrier signal, and / or copied from a physical entity such as a computer program product. Execution of the computer-readable instructions causes the device 900 to perform one or more of the functions described above.
[0148] The memory 920 can be implemented using any suitable data storage technology, such as semiconductor memory devices, flash memory, magnetic storage devices and systems, optical storage devices and systems, fixed memory and / or removable memory.
[0149] The device 900 may also include or be connected to a communication interface 930, such as a radio unit, which includes hardware and / or software for establishing a communication connection with one or more wireless communication devices according to one or more communication protocols. The communication interface 930 includes at least one transmitter (Tx) and at least one receiver (Rx), which may be integrated into the device 900, or the device 900 may be connected to it. The communication interface 930 may provide components for performing some of the blocks in one or more of the above example embodiments. The communication interface 930 may include one or more components controlled by a corresponding control unit, such as: a power amplifier, a digital front end (DFE), an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), a frequency converter, a (de)modulator, and / or an encoder / decoder circuit system.
[0150] Communication interface 930 provides the device with wireless communication capabilities for communication within a wireless communication network. For example, the communication interface may provide a wireless interface to one or more wireless communication devices. The device 900 may also include or be connected to another interface toward the core network, such as a network coordinator device or AMF, and / or be connected to an access node of the wireless communication network.
[0151] The device 900 may also include a scheduler 940 configured to allocate radio resources. The scheduler 940 may be configured together with the communication control circuitry system 910, or it may be configured separately.
[0152] It should be noted that device 900 may also include Figure 9 Various components are not shown. These components can be hardware components and / or software components.
[0153] The device 900 can perform the above embodiments or be applied using the above embodiments. More specifically, the device 900 can be a network device 104, and the network device 104 can be configured to perform the use of... Figures 1 to 7 One of the methods of explanation.
[0154] The techniques and methods described herein can be implemented through components. For example, these techniques can be implemented in hardware (one or more devices), firmware (one or more devices), software (one or more modules), or a combination thereof. For hardware implementation, the apparatus(s) of the example embodiments can be implemented in one or more of the following: application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), graphics processing units (GPUs), processors, controllers, microcontrollers, microprocessors, other electronic units designed to perform the functions described herein, or combinations thereof. For firmware or software, the implementation can be executed by a module (e.g., program, function, etc.) of at least one chipset, which performs the functions described herein. Software code can be stored in memory cells and executed by a processor. The memory cells can be implemented inside the processor or outside the processor. In the latter case, it can be communicatively coupled to the processor via various means, as known in the art. In addition, the components of the systems described herein can be rearranged and / or supplemented by additional components to facilitate a view of the various aspects described herein, and these are not limited to the specific configurations shown in the given figures, as will be understood by those skilled in the art.
[0155] It will be apparent to those skilled in the art that the inventive concept can be implemented in various ways as technology advances. The embodiments are not limited to the exemplary embodiments described above, but can vary within the scope of the claims. Therefore, all words and expressions should be interpreted broadly and are intended to illustrate rather than limit the embodiments.
Claims
1. A device for communication, comprising: At least one processor; as well as At least one memory, the at least one memory storing instructions, the instructions, when executed by the at least one processor, cause the device to perform at least the following: WUS configuration to receive wake-up signal from the first cell; A synchronization signal block SSB is received from the second cell, the SSB including information related to the subcarrier offset value; as well as The system information block type 1 (SIB1) transmission mode of the current primary information block (MIB) transmission period of the second cell is determined. The SIB1 transmission mode is checked based on at least one of the following: system frame number (SFN), the size of the MIB transmission period, or the subcarrier offset value. The SIB1 transmission mode is one of the SIB1 broadcast mode and the on-demand (OD) SIB1 mode.
2. The apparatus of claim 1, wherein the information related to the carrier offset value includes at least one of the following: SSB subcarrier offset field; or The payload of the physical broadcast channel PBCH of the SSB.
3. The apparatus according to claim 1 or 2, wherein checking the SIB1 transmission mode further comprises: The SFN is determined based on the PBCH of the SSB; as well as Based on the SFN and the MIB transmission period, the time point of the MIB transmission period is determined.
4. The apparatus according to any one of claims 1 to 3, wherein checking the SIB1 transmission mode further comprises: Determine whether the SIB1 transmission mode is valid during the current MIB transmission period from the stated time point. The validity of the SIB1 transmission mode is associated with at least one MIB transmission period or an integer multiplied by the MIB transmission period.
5. The apparatus according to any one of claims 1 to 4, wherein the SIB1 transmission mode is further checked by comparing the subcarrier offset value with a first reference value for frequency range 1 FR1 or a second reference value for frequency range 2 FR2.
6. The apparatus according to any one of claims 1 to 5, wherein the SIB transmission mode is maintained at least during the current MIB transmission period from the point in time.
7. The apparatus according to any one of claims 1 to 6, wherein the SIB transmission mode is determined for a corresponding MIB transmission period.
8. The apparatus according to any one of claims 1 to 7, wherein the apparatus is further caused to perform: At least one SSB is received in each MIB transmission period within the MIB transmission period.
9. The apparatus according to any one of claims 1 to 8, wherein if the SIB transmission mode is the OD SIB mode, the apparatus is further configured to perform: According to the WUS configuration, a SIB1 request is sent to the second cell; and In response to the SIB1 request, receive on-demand SIB1 from the second cell.
10. The apparatus according to any one of claims 1 to 8, wherein if the SIB1 transmission mode is the SIB1 broadcast mode, the apparatus is further caused to perform: Receive SIB1 broadcast by the second cell.
11. The apparatus according to any one of claims 1 to 10, wherein the apparatus is a user equipment, the first cell is cell A, and the second cell is a network-efficient cell.
12. A method for communication, comprising: WUS configuration to receive wake-up signal from the first cell; A synchronization signal block SSB is received from the second cell, the SSB including information related to the subcarrier offset value; as well as The system information block type 1 (SIB1) transmission mode of the current primary information block (MIB) transmission period of the second cell is determined. The SIB1 transmission mode is checked based on at least one of the following: system frame number (SFN), the size of the MIB transmission period, or the subcarrier offset value. The SIB1 transmission mode is one of the SIB1 broadcast mode and the on-demand (OD) SIB1 mode.
13. The method of claim 12, wherein the information associated with the carrier offset value includes at least one of the following: SSB subcarrier offset field; or The payload of the physical broadcast channel PBCH of the SSB.
14. The method of claim 12 or 13, wherein checking the SIB1 transmission mode further comprises: The SFN is determined based on the PBCH of the SSB; as well as Based on the SFN and the MIB transmission period, the time point of the MIB transmission period is determined.
15. The method according to any one of claims 12 to 14, wherein checking the SIB1 transmission mode further comprises: Determine whether the SIB1 transmission mode is valid during the current MIB transmission period from the stated time point. The validity of the SIB1 transmission mode is associated with at least one MIB transmission period or an integer multiplied by the MIB transmission period.
16. The method according to any one of claims 12 to 15, wherein the SIB1 transmission mode is further checked by comparing the subcarrier offset value with a first reference value for frequency range 1 FR1 or a second reference value for frequency range 2 FR2.
17. The method according to any one of claims 12 to 16, wherein the SIB transmission mode is maintained at least during the current MIB transmission period from the point in time.
18. The method according to any one of claims 12 to 17, wherein the SIB transmission mode is determined for a corresponding MIB transmission period.
19. The method according to any one of claims 12 to 18, wherein the apparatus is further configured to perform: At least one SSB is received in each MIB transmission period within the MIB transmission period.
20. The method according to any one of claims 12 to 19, wherein if the SIB transmission mode is the ODSIB mode, the apparatus is further configured to perform: According to the WUS configuration, a SIB1 request is sent to the second cell; and In response to the SIB1 request, receive on-demand SIB1 from the second cell.
21. The method according to any one of claims 12 to 19, wherein if the SIB1 transmission mode is the SIB1 broadcast mode, the apparatus is further caused to perform: Receive SIB1 broadcast by the second cell.
22. The method according to any one of claims 12 to 21, wherein the apparatus is a user equipment, the first cell is cell A, and the second cell is a network-efficient cell.
23. A computer program product comprising instructions that, when executed by a device, cause the device to perform the method according to any one of claims 12 to 22.
24. A computer-readable storage medium having stored thereon a computer program product according to claim 23.
25. The computer-readable storage medium of claim 24, wherein the computer-readable storage medium is a non-transitory computer-readable medium.