Downlink synchronization

Abstract

The present invention provides an apparatus and method for downlink synchronization. [Solution] The device includes a non-transient memory containing instructions stored thereon for performing the configuration of an initial access signal in a 5G network, and a processor operably coupled to the non-transient memory and capable of executing instructions for monitoring the transmission of DL sweep subframes, including beam sweep blocks that carry downlink (DL) initial access signals. The processor includes instructions for detecting a DL initial access signal that carries a synchronization signal, and instructions for determining the identification of a beam sweep block associated with the DL initial access signal based on the synchronization signal. And then execute.

Description

[Technical Field]

[0001] (Citation of related applications) This application is a U.S. Provisional Patent Application No. 62 / 325,323 (filed April 20, 2016, title: Downlink Synchronization for 5G Networks ), U.S. Provisional Patent Application No. 62 / 373,662 (filed August 11, 2016, title "Be amforming Sweeping and Training in a Flesh "Xible Frame Structure for New Radio", USA Provisional patent application No. 62 / 401,055 (filed September 28, 2016, title "Methods") for Dynamic Transmission Mode Switching (and Initial Access in New Radio), and the United States National Provisional Patent Application No. 62 / 417,162 (filed November 3, 2016, title "Beam B") ased Mobility and Beam Management in NR” Claiming priority rights to the above applications, all of the above applications are referred to herein by reference in their entirety. It is used.

[0002] (Field) This application relates to a device and method for downlink synchronization. [Background technology]

[0003] (background) Downlink synchronization (DL synchronization) is not limited to, but is an extended mobile broadband (e MBB), Mass Machine Type Communications (mMTC), and Ultra-High Reliability / Low Latency Communications (UR / LL) This is important for 5G applications, including DL synchronization. Symbols, slots, and subframe / frame timing for applications It is a provisioning mechanism for that purpose.

[0004] Propagation delay depends on the deployment scenario. For example, the maximum propagation delay for an outdoor deployment scenario. The delay is 4.0 μs. On the other hand, the maximum propagation delay for indoor deployment scenarios is approximately 0.4 μs. s. However, existing systems such as 3GPP LTE / LTE-A cells are developing Regardless of the open scenario, the same cycle prefix duration will be adopted. Therefore, this is undesirable for handling diverse applications.

[0005] 5G systems utilize various technologies such as transmission time interval (TTI) and subcarrier spacing. It supports numerology, supports 5G user devices (UE), and during the cell search phase. The protocol for obtaining DL symbols, frame timings, and cell identification is: Unavailable. Based on the current DL synchronization design, 5G UE supports numerology. It is not possible to blindly detect the technique.

[0006] Separately, the UE is in the Wireless Resource Control (RRC) - Idle or RRC - Connected state. To re-select a cell, it is necessary to perform neighbor cell measurements. Re-selection is performed by comparing neighbor cell DL (Digital Range). It requires knowledge of the numerology of the period signal. However, in 5G systems, different DL synchronization signals Number occultism can be used in different cells. Improving neighbor cell measurements within 5G systems. A method is desired.

[0007] Applications such as eMBB, mMTC, and UR / LL have different latency requirements. and presents power saving requirements. DL synchronization signal design and cell search procedures are required to support these requirements within the 5G system. This is required to support these requirements within the 5G system.

[0008] The new radio (NR) access technology helps to identify and develop the technical components required for the system to operate at frequencies up to 100 GHz. For example, see 3GPP TR38.913, Study on Scenarios and Requirements for Next Generation Access Technologies; (Release 14), V0.3.0 as well as RP-161214, Revision of SI: Study on NR Access Technology, NTT DOCOMO. Beamforming is expected to be widely used to compensate for the increased path loss within these high frequency NR (HF-NR) systems. However, existing initial access signal designs such as DL synchronization, reference signals, and PBCH design based on omnidirectional or sector-based transmission do not support the functions required for beamforming-based access (e.g., beam sweeping, beam pairing, beam training, etc.). The new radio (NR) access technology helps to identify and develop the technical components required for the system to operate at frequencies up to 100 GHz. For example, see 3GPP TR38.913, Study on Scenarios and Requirements for Next Generation Access Technologies; (Release 14), V0.3.0 as well as RP-161214, Revision of SI: Study on NR Access Technology, NTT DOCOMO. Beamforming is expected to be widely used to compensate for the increased path loss within these high frequency NR (HF-NR) systems. However, existing initial access signal designs such as DL synchronization, reference signals, and PBCH design based on omnidirectional or sector-based transmission do not support the functions required for beamforming-based access (e.g., beam sweeping, beam pairing, beam training, etc.). PP TR38.913, Study on Scenarios and Requirements for Next Generation Access Technologies; PP TR38.913, Study on Scenarios and Requirements for Next Generation Access Technologies; (Release 14), V0.3.0 as well as RP-161214, Revision of SI: Study on NR Access Technology, NTT DOCOMO. Revision of SI: Study on NR Access Technology, NTT DOCOMO. (Release 14), V0.3.0 as well as RP-161214, Revision of SI: Study on NR Access Technology, NTT DOCOMO. These high frequency NR (HF-NR) systems. To compensate for the increased path loss within these high frequency NR (HF-NR) systems, beamforming is expected to be widely used. However, existing initial access signal designs such as DL synchronization, reference signals, and PBCH design based on omnidirectional or sector-based transmission do not support the functions required for beamforming-based access (e.g., beam sweeping, beam pairing, beam training, etc.). systems. To compensate for the increased path loss within these high frequency NR (HF-NR) systems, beamforming is expected to be widely used. However, existing initial access signal designs such as DL synchronization, reference signals, and PBCH design based on omnidirectional or sector-based transmission do not support the functions required for beamforming-based access (e.g., beam sweeping, beam pairing, beam training, etc.). systems. To compensate for the increased path loss within these high frequency NR (HF-NR) systems, beamforming is expected to be widely used. However, existing initial access signal designs such as DL synchronization, reference signals, and PBCH design based on omnidirectional or sector-based transmission do not support the functions required for beamforming-based access (e.g., beam sweeping, beam pairing, beam training, etc.). systems. To compensate for the increased path loss within these high frequency NR (HF-NR) systems, beamforming is expected to be widely used. However, existing initial access signal designs such as DL synchronization, reference signals, and PBCH design based on omnidirectional or sector-based transmission do not support the functions required for beamforming-based access (e.g., beam sweeping, beam pairing, beam training, etc.). systems. To compensate for the increased path loss within these high frequency NR (HF-NR) systems, beamforming is expected to be widely used. However, existing initial access signal designs such as DL synchronization, reference signals, and PBCH design based on omnidirectional or sector-based transmission do not support the functions required for beamforming-based access (e.g., beam sweeping, beam pairing, beam training, etc.).

[0009] Current network access procedures are based on omnidirectional or sector-based transmission. For example, this may include the cell search procedure and subsequent physical broadcast channel (PBCH) acquisition. However, some of the functions for beamforming-based access are not supported by the existing omnidirectional or sector-based transmission access procedures. Current network access procedures are based on omnidirectional or sector-based transmission. For example, this may include the cell search procedure and subsequent physical broadcast channel (PBCH) acquisition. However, some of the functions for beamforming-based access are not supported by the existing omnidirectional or sector-based transmission access procedures. Current network access procedures are based on omnidirectional or sector-based transmission. For example, this may include the cell search procedure and subsequent physical broadcast channel (PBCH) acquisition. However, some of the functions for beamforming-based access are not supported by the existing omnidirectional or sector-based transmission access procedures. Current network access procedures are based on omnidirectional or sector-based transmission. For example, this may include the cell search procedure and subsequent physical broadcast channel (PBCH) acquisition. However, some of the functions for beamforming-based access are not supported by the existing omnidirectional or sector-based transmission access procedures. This is not supported. One of these features is beamforming in idle state. Includes pair determination. Other features include beamformation training feedback and beamformation training criteria. Should signal (BT-RS) transmission, for example, be performed before, during, or after RRC connection setup? This includes beamforming (BF) training, which is time- and frequency-dependent. Includes uplink (UL) channel resources for feedback. Further features This includes beamformation-based PBCH detection. [Overview of the project] [Means for solving the problem]

[0010] (summary) This summary describes a series of concepts, which will be further explained in the following embodiments for carrying out the invention. Provided for implementation in a simplified form. This summary covers the scope of the claimed subject matter. This is not intended to limit the process. The aforementioned necessity is for DL ​​synchronization. This application, which applies to the device, largely satisfies the requirements.

[0011] In one aspect of this application, a device on a 5G network is disclosed. The instructions stored therein for performing the configuration of the initial access signal in the work, Includes non-transient memory. The device is also operably coupled to the non-transient memory and downlink Downlink sweep subframe including beam sweep block that carries initial access signal Includes a processor capable of executing commands to monitor the transmission of synchronous signals. It is also possible to execute a command to detect the downlink initial access signal that carries the signal. The processor, based on the synchronization signal, uses the B that is associated with the downlink initial access signal. It is also possible to execute an instruction to determine the identification of a sweep block.

[0012] In another aspect of this application, devices on a 5G network will perform major numerology within the 5G network. Non-transient, including instructions stored on it for assigning to a node that is synchronized with the cell. It is described as having memory. The device is also operably coupled to non-transient memory. It includes a processor. The processor transmits the cell's master information block to the node. Instructions can be executed. The processor also takes into account network load, node location, and node Based on the network slicing configuration and the criteria selected from combinations thereof Therefore, it is possible to assign major numerology elements to the nodes.

[0013] From another perspective, the DL initial access signal is the DL synchronization channel (signal), BEE The DL initial access signal includes a reference signal and a PBCH channel, and the DL beam sweep The beams are transported by blocks, and each beam sweep block is a single orthogonal frequency division multiplexer (OF The DL beam sweep subframe includes either a DM or multiple OFDM symbols. It includes multiple beam sweep blocks, and the DL synchronous channels PSS and SSS are different O It can be installed in the FDM symbol, and the beam sweep block has only one DL synchronous channel. Including the channel, the beam reference signal and PBCH may be the same OFDM symbol or different OFDM symbols. The PBCH can coexist within the FDM symbol, and differs from the DL synchronization channel and beam reference signal. It has a transmission period. The DL synchronization channel carries both cell and beam IDs. In addition, the UE detects the DL beam sweep blocks that should be detected, and the detected beam sweep blocks It is possible to calculate the timing offset between the lock and the DL sweep subframe. If the DL synchronization channel carries only the cell ID, the UE will use the beam ID as the beam base. It can be detected from the quasi-signal. Therefore, the UE is the DL beam sweep that should be detected. The blocks can be identified, and the detected beam sweep blocks and DL sweep subframes can be identified. It is possible to calculate the timing offset between these two points.

[0014] Therefore, in order for the detailed explanation to be more deeply understood, and for the book on the relevant technical field In order for the contribution to be more deeply recognized, one embodiment of the present invention has been outlined in a fairly broad sense. .

[0015] To facilitate a more solid understanding of this application, similar elements are shown here using the same numbering. Refer to the accompanying drawings, which are to be used as references. These drawings are to be construed as limiting the present application. It is not meant to be a 'should,' but rather as an example. [Brief explanation of the drawing]

[0016] [Figure 1] Figure 1 illustrates the time-domain locations of narrowband primary and narrowband secondary synchronous signal transmission for narrowband IoT. [Figure 2A] Figure 2A illustrates an exemplary scalable transmission time interval in 5G. [Figure 2B] Figure 2B illustrates multiple numerology systems multiplexed on a time-frequency resource grid. [Figure 3A] Figure 3A illustrates an exemplary communication system according to one embodiment of the present invention. [Figure 3B] Figure 3B illustrates an exemplary device configured for wireless communication according to one embodiment of the present invention. [Figure 3C]Figure 3C illustrates a diagram of a wireless access network and a core network according to one embodiment of the present invention. [Figure 3D] Figure 3D illustrates a diagram of the wireless access network and core network according to another embodiment of the present application. [Figure 3E] Figure 3E illustrates a diagram of the wireless access network and core network according to yet another embodiment of the present application. [Figure 3F] Figure 3F illustrates a block diagram of an exemplary computing system according to one embodiment of the present invention that communicates with one or more networks shown in Figures 3A, 3C, 3D, and 3E. [Figure 4] Figures 4A-B illustrate exemplary downlink synchronous sequence frequency allocation for different subcarrier spacings according to one embodiment of the present invention. [Figure 5] Figure 5 illustrates an exemplary secondary synchronization signal detection function according to one embodiment of the present invention. [Figure 6] Figures 6A-D illustrate an exemplary secondary synchronous signal downlink synchronous sequence frequency distribution according to one embodiment of the present invention. [Figure 7A] Figure 7A illustrates an exemplary initial synchronization procedure in 5G that supports a scalable subcarrier spacing coefficient incorporated into the primary synchronization signal, according to one embodiment of the present invention. [Figure 7B] Figure 7B illustrates an exemplary initial synchronization procedure in 5G that supports a scalable subcarrier spacing coefficient incorporated into a secondary synchronization signal, according to one embodiment of the present invention. [Figure 8] Figure 8 illustrates an exemplary CAZAC sequence according to one embodiment of the present invention. [Figure 9] Figure 9 illustrates a new flexible frame structure in wireless communication according to one embodiment of the present invention. [Figure 10A] Figures 10A-C illustrate a beam sweeping technique according to one embodiment of the present invention. [Figure 10B]Figures 10A-C illustrate a beam sweeping technique according to one embodiment of the present invention. [Figure 10C] Figures 10A-C illustrate a beam sweeping technique according to one embodiment of the present invention. [Figure 11] Figure 11 illustrates two beamforming training reference signals (BT-RS) in a novel radio using two different numerology, according to one embodiment of the present invention. [Figure 12] Figure 12 illustrates a novel in-wire shared BT-RS using two different numerology methods according to one embodiment of the present invention. [Figure 13A] Figure 13A illustrates a predetermined BT-RS configuration within a self-contained subframe according to one embodiment of the present invention. [Figure 13B] Figure 13B illustrates a semi-static BT-RS configuration within a self-contained subframe according to one embodiment of the present invention. [Figure 14] Figures 14A-B illustrate exemplary initial access for single (a) and multi-beam (b) implementations. [Figure 15] Figure 15 illustrates an exemplary DL sweep block and subframe for initial DL access. [Figure 16A] Figures 16A-B illustrate an exemplary sweep block with one OFDM and one of several OFDM symbols. [Figure 16B] Figures 16A-B illustrate an exemplary sweep block with one OFDM and one of several OFDM symbols. [Figure 17] Figures 17A-B illustrate an exemplary sweep subframe with multiple beams enabled per sweep block. [Figure 18] Figure 18 illustrates an exemplary DL self-contained sweep subframe structure. [Figure 19] Figure 19 illustrates an exemplary TSS used for beam ID detection. [Figure 20] Figure 20 illustrates the exemplary timing offset from the detected beam sweep block to the beam sweep subframe. [Figure 21A] Figure 21A illustrates exemplary DL sweep blocks and bursts for initial DL access. [Figure 21B-1] Figures 21B(i)-(iii) illustrate a DL sweep block with one of the OFDM symbols according to one embodiment of the present application. [Figure 21B-2] Figures 21B(i)-(iii) illustrate a DL sweep block with one of the OFDM symbols according to one embodiment of the present application. [Figure 21B-3] Figures 21B(i)-(iii) illustrate a DL sweep block with one of the OFDM symbols according to one embodiment of the present application. [Figure 21C] Figures 21C(i)-(iii) illustrate a DL sweep block with multiple OFDM symbols according to one embodiment of the present invention. [Figure 22] Figure 22 illustrates a network with multiple cells having common synchronous numerology according to one embodiment of the present invention. [Figure 23] Figure 23 illustrates an exemplary procedure for detecting the primary numerology according to one embodiment of the present invention. [Figure 24] Figure 24 illustrates a signal flow synchronization procedure with a neighboring cell according to one embodiment of the present invention. [Figure 25] Figures 25A-B illustrate a DL sweep block with multiple OFDM symbols (without association with NR-PBCH) according to one embodiment of the present invention. [Figure 26] Figures 26A-C illustrate exemplary demodulated reference signals for NR-PBCH according to one embodiment of the present application. [Figure 27] Figures 27A-C illustrate an exemplary BT-RS used for beam ID detection according to one embodiment of the present invention. [Figure 28] Figure 28 illustrates an exemplary embodiment of the BT-RS beam identification and association beam sequence within a self-contained subframe of the present invention. [Figure 29]Figure 29 illustrates an embodiment of the BT-RS beam identification decoding and synchronization detection according to the present invention. [Figure 30] Figure 30 illustrates the cell target range with a sector beam and multiple high-gain narrow beams. [Figure 31] Figure 31 illustrates an exemplary embodiment of the user equipment (UE) initial access procedure for beamforming training when a PBCH is paired with beam transmission, according to the present invention. [Figure 32] Figure 32 illustrates the location of the BT-RS and PBCH within the frame structure according to one embodiment of the present invention. [Figure 33] Figure 33 illustrates various subcarrier interval-dependent downlink synchronous broadcast periods according to one embodiment of the present invention. [Modes for carrying out the invention]

[0017] (Detailed description of exemplary embodiments) Modes for carrying out the invention can be found by referring to the various figures, embodiments, and aspects of this specification. This will be discussed. This description provides detailed examples of possible implementations, but details will be discussed in detail. It should be understood that this is intended as an example and therefore does not limit the scope of this application.

[0018] In this specification, "one embodiment," "a certain embodiment," "one or more embodiments," and "a References such as "aspects" refer to specific features, structures, or characteristics described in relation to the embodiments. This means that it is included in at least one embodiment of the present disclosure. Furthermore, various The term "embodiment" in this context does not necessarily refer to the same embodiment. That is, it can be demonstrated by some embodiments, but not by other embodiments. Various characteristics are then explained.

[0019] In general, this application relates to the efficient DL of at least one numerology in a 5G system. This concerns mechanisms for the period. In one aspect, frequency resource allocation methods and systems are These mechanisms are used for 5G DL synchronization. It helps to support. In one embodiment, the DL sync channel is supported by the 5G cell. A method for adopting the minimum subcarrier interval to be ported is described. For example, each Three 5G applications that support subcarrier spacing Δf, 2Δf, and 4Δf. If a synchronization exists, DL synchronization will be performed for those applications, Δf=mi The smallest subcarrier interval among n{Δf, 2Δf, 4Δf} will likely be used.

[0020] In another embodiment, DL synchronization uses cells with their own default subcarrier intervals. The method of porting is explained. For example, this is a deployment scenario, e.g., indoor vs. outdoor. This can depend on factors such as small cells versus picocells. As a result, 5G UE is

number

[0021] According to another aspect of this application, a method for designing DL synchronization channels using common denominator numerology. And the architecture is provided. That is, the common denominator is all of the in the network. It is supported across cells. As a result, all other numerology is derived from common denominator numerology. It can be output. According to one embodiment, the number of other supported systems in the cell The information of the secret arts, such as subcarrier interval, symbol duration, and TTI length, is physically Within the Master Information Block (MIB) in the Loadcast Channel (PBCH) It can be cast. Depending on the successful acquisition of DL timing and frequency, the UE By decoding PBCH(MIB), other supported systems of numerology They will obtain information on neighboring cells. According to another embodiment, the 5G system will obtain a list of neighboring cells. It is assumed that this will be adopted and that information on DL synchronization signal numerology of neighboring cells can be provided to the UE.

[0022] According to yet another aspect of this application, evolved node base stations have DL synchronous signals with different periodicities. Methods and architectures are envisioned that can transmit signals. Periodicity is a timing requirement. It may depend. Furthermore, on yet another level, 5G UE implements appropriate detection procedures. Furthermore, it processes DL synchronization signals received from eNBs with different periodicities, and its DL type You will obtain the ming and frequency.

[0023] In one aspect of this invention, a device on a 5G network may cause a cell downtime within the 5G network. Includes non-transient memory, including instructions stored thereon for performing link synchronization. The device also includes a processor, which is operably coupled to non-transient memory. The processor is capable of executing instructions to perform cell searches in a 5G network. The processor can also detect the cell's primary synchronization signal. The secondary synchronization signal can be detected. The processor can also synchronize with the cell. Furthermore, Rossessa can decode the physical broadcast channel of a cell using synchronous numerology. It is possible. In particular, the subcarrier spacing coefficient is the detected primary synchronization signal or the detected primary It is obtained from one of the two synchronization signals.

[0024] Another aspect of this invention is the instructions stored thereon for performing synchronization with neighboring cells. The target devices on a 5G network that have non-transient memory, including the following: It also includes a processor operably coupled to non-transient memory. The processor is the first The processor can implement instructions that provide devices connected to the cells. The system information block can be decoded. The processor can also synchronize the number of neighboring cells. It is possible to determine system information blocks, including secret techniques. The processor also determines one of the neighboring cells. Next and secondary synchronization signal detection is possible. Furthermore, the processor can synchronize with neighboring cells. It is Noh.

[0025] (Definition / Acronym) Table 1 below provides definitions for terms and phrases commonly used in this application. . [Table 1-1] [Table 1-2]

[0026] (Support for shorter TTI in 3GPP Release 14) Current 3GPP 4G / 4.5G systems support shorter TTI resolutions. This is for the purpose of: A shorter TTI length is equal to the duration of multiple OFDM symbols. It is defined as follows. Therefore, the shorter general formula for TTI in 3GPP Release 14 is: It can be expressed as follows:

number

[0027] In the formula, x = 1, 2, 3, 4, 7, 14, and for the usual CP case, Tcp = (z = 1) = For 4.7 μs and the extended CP case, Tcp = (z = 2) = 16.67 μs, then In 4G, the subcarrier spacing Δf = 15 kHz.

[0028] (Cell search for NB-IoT) NB-IoT is a work item in 3GPP Release 13, and the NB-IoT is The details of the DL synchronization design are still under discussion in 3GPP Release 14. Path forwarding for DL ​​synchronization signals in NB-IoT is Narrowband PSS (NB-PSS) This does not provide cell identification information as in LTE. NB-PSS is time It provides synchronization. This is used to estimate and compensate for frequency offset (FO). NB-PSS is generated within the frequency domain and in time N PSS OFDM symbol It spreads across the network. NB-PSS is long N ZC and Zadof with root Uj It consists of f-Chu(ZC) sequences, and each NB-PSS(n) is expressed as follows: It is possible.

number

[0029] In the formula, N ZC is the sequence length, N ZC = 11. The OFDM symbol is Each carries a sequence corresponding to a unique root index. PSS (N ZC Regarding =11), the symbol is the i-th symbol (i=1) for NB-PSS transmission. ,2,...,N PSS Each time, it is transmitted within a subframe, and its root index is , uj. N PSS The NB-PSS sequence for the symbol is 10ms in time. This is repeated each time. The time domain locations for NB-PSS and NB-SSS transmissions are shown in Figure 1. This is illustrated. Regarding NB-SS, this is still under discussion in R14. One of the NB-SSS design methods is a ZC sequence using a scrambling sequence. Based on Kens masking.

[0030] (Nearby cell search) When UE performs measurements to facilitate cell reselection and handover, the system You may use SIB information to obtain information about neighboring cells. For example, in LTE, SIB -4 and SIB-5 provide information about neighboring cells within the same frequency band and inter-frequency band. Further information on SIB-4 is provided in Tables 2, 3, and 4 below. .

[0031] IE SystemInformationBlockType4 is a cell regeneration within frequency Includes neighboring cell-related information relevant only for selection. IE provides specific re-selection parameters. It includes the accompanying cells and blacklist cells.

Table 2

Table 3

Table 4

[0032] (SystemInformationBlockType5(SIB-5)) The IE SystemInformationBlockType5 contains information relevant only for inter-frequency cell reselection, i.e., other E-UTRA frequencies and information on neighboring cells between frequencies relevant for cell reselection. The IE contains common cell reselection parameters and cell-specific reselection parameters for the frequencies. This is shown in Table 5 below. for cell reselection and other E-UTRA frequencies and information on neighboring cells between frequencies relevant for cell reselection. A frequencies and information on neighboring cells between frequencies. The IE contains common cell reselection parameters and cell-specific reselection parameters for the frequencies. cell reselection parameters and cell-specific reselection parameters. This is shown in Table 5 below. as shown in the following Table 5.

Table 5-1

Table 5-2

Table 5-3

[0033] (5G TTI) The 5G system needs to support generalized scalable numerology and TTI, i.e., optimized multiple access for different user cases. Therefore, the generalized scalable TTI in 5G consists of a scalable symbol time factor x, a scalable subcarrier spacing factor y, and a guard interval T - cases. Therefore, the generalized scalable TTI in 5G consists of a scalable symbol time factor x, a scalable subcarrier spacing factor y, and a guard interval T in 5G consists of a scalable symbol time factor x, a scalable subcarrier spacing factor y, and a guard interval T (z) (which is guard (z) (which is Three scalers (which may be called cyclic prefixes in relation to OFDM symbol waveforms) It can be expressed as a variable parameter. Therefore, the duration of 5G TTI is as follows: It can be expressed in terms of a formula.

number

[0034] In the formula, x, y, and z can be positive integers, and Δf is the most used in 5G. This is a small subcarrier spacing. As an example, the minimum subcarrier spacing Δf = 7.5 kHz is used. When setting the symbol interval,

number

[0035] FFT size, subcarrier interval, CP size (or guard interval), pulse 5G transmitters using various (scalable) numerology such as molded filters and TTI length. An example of this is shown in Figure 2A.

[0036] Based on Table 2B above, 5G numerology is multiplexed within the time-frequency resource grid. An example is illustrated in Figure 2B. Specifically, multiplexing is performed within different subbands, or There are three numerological systems that either partially overlap within the frequency resources. In addition, 5G will enable different numerology systems to be multiplexed in the time domain as well. It is possible.

[0037] (General architecture) The Third Generation Partnership Project (3GPP) focuses on wireless access, core transformers, and more. Port network and service capabilities (codecs, security, and services) Technical regulations for cellular telecommunications network technology, including work related to quality. They are developing a standard. Recent wireless access technology (RAT) standards include WCDMA (registered trademark). LTE (commonly referred to as 3G), LTE (commonly referred to as 4G), and LTE-Ad Includes Bandst standards. 3GPP is called the new wireless (NR), also known as "5G". Work has begun on standardizing next-generation cellular technology. 3GPP NR standard development It is expected that this will include a definition of next-generation wireless access technology (new RAT), which is 6 Providing new flexible wireless access below GHz and new wireless access above 6GHz It is expected to include the provision of ultra-mobile broadband wireless access. The robust wireless access is new in backward compatibility in the new spectrum below 6GHz. It is expected to consist of wireless access, multiplexed together within the same spectrum, and diverse requirements Different operating modes can address a wide range of 3GPP NR use cases involving multiple issues. It is expected to include. Ultra mobile broadband is ultra mobile broad Band access, for example, provides opportunities for indoor applications and hotspots. It is expected to include cm wave and mm wave spectra. In particular, Ultramobil Il Broadband uses a common design frame with design optimizations specific to CmWave and MWave. The work is expected to be shared with flexible wireless access below 6GHz.

[0038] 3GPP is a standard for data rates, latency, and various user experience requirements for mobility. Identifying various use cases that NR is expected to support, which will result in [the issue]. The use cases fall into the following general categories: augmented mobile broadband. For example, broadband access in high-density areas, indoor ultra-high broadband access S, broadband access in crowds, 50+ Mbps everywhere, ultra-low power Street broadband access, mobile broadband in vehicles, critical communications, large-scale machine Network type communication, network operation (e.g., network slicing, routing, Transition and interworking, energy saving, and extended vehicles and all This includes communication between (eV2X) devices. Specific services and applications in these categories. Some examples of applications include monitoring and sensor networks, and remote device networks. Remote control, two-way remote control, personal cloud computing, video streaming Wireless cloud-based office, emergency responder connectivity, automotive e-call, disaster Harm alerts, real-time games, multi-person video calls, autonomous driving, augmented reality, haptic input This includes Internet and virtual reality. All of these use cases and others are included in this specification. It will be considered in writing.

[0039] Figure 3A shows an exemplary illustration of how the methods and apparatus described and claimed herein may be embodied. An embodiment of the communication system 100 is illustrated. As shown, the exemplary communication system 10 0 refers to the Wireless Transmission / Receiving Unit (WTRU) 102a, 102b, 102c, and / or Or 102d (which may be generally or collectively referred to as WTRU102) and wireless accessories The RAN network (RAN) 103 / 104 / 105 / 103b / 104b / 105b, Core networks 106 / 107 / 109 and Public Switched Telephone Network (PSTN) 1 08 may include the Internet 110 and other networks 112, but are disclosed. The embodiments include any number of WTRUs, base stations, networks, and / or networks You will understand that we will examine the elements. WTRU102a, 102b, 102c, 1 02d and 102e are configured to operate and / or communicate in a wireless environment, respectively. , which may be any type of apparatus or device. Each WTRU102a, 102b, 10 2c, 102d, and 102e are depicted in Figure 3E as handheld wireless communication devices, Each WTRU is an example of the various use cases being considered for 5G wireless communication. However, user equipment (UE), mobile station, fixed or mobile subscriber unit, Pagers, cellular phones, personal digital assistants (PDAs), smartphones, laptops, etc. Bullet, netbook, notebook computer, personal computer, wireless Wearable devices such as consumer electronics, smartwatches, or smart clothing. Medical or e-health devices, robots, industrial equipment, drones, cars, trucks, trains, or vehicles such as airplanes, etc., are configured to transmit and / or receive wireless signals. Having, or being able to embody, any type of device or apparatus. They will understand.

[0040] The communication system 100 may also include base station 114a and base station 114b. 114a wirelessly communicates with at least one of WTRU102a, 102b, or 102c. The interface is taken up, with core network 106 / 107 / 109 and internet 11 Access to one or more communication networks, such as 0 and / or other networks 112. It may be any type of device configured to facilitate the operation. Base station 114b is , RRH (Remote Radio Head) 118a, 118b and / or TRP (Transmission and Reception) (Point) At least one of 119a, 119b and wired and / or wireless interface Take the face, core network 106 / 107 / 109, internet 110, and To facilitate access to one or more communication networks, such as and / or other networks 112. It may be any type of device configured to do so. RRH118a, 118b It wirelessly interfaces with at least one of the WTRU102c and core network Network 106 / 107 / 109, Internet 110, and / or other networks It is configured to facilitate access to one or more communication networks, such as Work 112. It can be any type of device. TRP119a, 119b are WTRU102d It wirelessly interfaces with at least one of the core networks 106 / 1 07 / 109, Internet 110, and / or other network 112, etc. Any type of device configured to facilitate access to the above communication network It could be a chair. For example, base stations 114a and 114b are transceiver base stations (BTS) Node-B, eNodeB, Home Node B, Home eNode B, Site This could be a controller, access point (AP), wireless router, etc. Base station 114a, 1 Each 14b is described as a single element, but base stations 114a and 114b can be any number Please understand that this may include interconnected base stations and / or network elements. .

[0041] Base station 114a may be part of RAN103 / 104 / 105, and base station control Other base stations such as the Radio Station (BSC), Wireless Network Controller (RNC), and relay nodes. It may include and / or network elements (not shown). Base station 114b is RAN10 This could be part of 3b / 104b / 105b, and this is also the base station controller (BSC). , other base stations such as wireless network controllers (RNCs), relay nodes and / or It may include network elements (not shown). Base station 114a is referred to as a cell (not shown). It may be configured to transmit and / or receive radio signals within a specific geographical area. Base station 114b may be called a cell (not shown), which provides wired and The cell may be configured to transmit and / or receive wireless signals. It can be divided into cell sectors. For example, a cell associated with base station 114a can be divided into three cells. It can be divided into units. Therefore, in one embodiment, the base station 114a is, for example, a cell. It may include one transceiver and three receivers per sector. In one embodiment, base station 114a, Multiple Input Multiple Output (MIMO) technology can be employed, and therefore multiple transmit and receive operations can be performed for each sector of the cell. Opportunities can be utilized.

[0042] Base station 114a connects to any suitable wireless communication link (e.g., radio frequency (RF), mi This can include Kuro waves, infrared (IR), ultraviolet (UV), visible light, cm waves, mm waves, etc. via interface 115 / 116 / 117, WTRU102a, 102b, It can communicate with one or more of the 102c. Air interface 115 / 116 / 117 can be established using any suitable radio access technology (RAT).

[0043] Base station 114b can use any suitable wired (e.g., cable, optical fiber, etc.) or wireless connection. Communication links (e.g., radio frequency (RF), microwave, infrared (IR), ultraviolet (UV)) ), visible light, cm wave, mm wave, etc., wired or air interface 115b via / 116b / 117b, RRH118a, 118b and / or TRP11 It can communicate with one or more of 9a and 119b. Air interface 115b / 116b / 117b can be established using any suitable radio access technology (RAT). ru.

[0044] RRH118a, 118b and / or TRP119a, 119b are any suitable Wireless communication links (e.g., radio frequency (RF), microwave, infrared (IR), ultraviolet) (UV), visible light, cm wave, mm wave, etc.) may be air interface 115c / 11 Communicate with one or more WTRU102c and 102d via 6c / 117c. It is possible. The air interface 115c / 116c / 117c can be any suitable wireless interface. This can be established using RAT (Real-Action Technique).

[0045] More specifically, as mentioned above, the communication system 100 is a multiple access system. It can be obtained from one or more types of DMA such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, etc. A network access scheme can be employed. For example, RAN103 / 104 / 105 and WT Base stations 114a or RAN103b / 104b within RU102a, 102b, and 102c RRH118a, 118b and TR in / 105b and WTRU102c, 102d. P119a and P119b each use broadband CDMA (WCDMA®). Then, the air interface 115 / 116 / 117 or 115c / 116c / 117 c can establish Universal Mobile Telecommunications System (UMTS) terrestrial radio access. Wireless technologies such as (UTRA) can be implemented. WCDMA (registered trademark) is a high-speed packet handling technology. Includes communication protocols such as HSPA and / or evolved HSPA (HSPA+). It is possible. HSPA stands for High-Speed ​​Downlink Packet Access (HSDPA) and / or This may include High-Speed ​​Uplink Packet Access (HSUPA).

[0046] In one embodiment, RAN103b / 104b / 105b and WTRU102c, 1 Base stations 114a and WTRU 102a, 102b, 102c or RRH1 within 02d 18a, 118b and TRP119a, 119b are, respectively, Long Term Evolution Using LTE and / or LTE-Advanced (LTE-A), Establish an interface 115 / 116 / 117 or 115c / 116c / 117c. It is possible to implement wireless technologies such as advanced UMTS terrestrial wireless access (E-UTRA). In the future, the Air Interface 115 / 116 / 117 may implement 3GPP NR technology. ru.

[0047] In one embodiment, base stations 114a and RAN103 / 104 / 105 are located within RAN103 / 104 / 105. WTRU102a within 03b / 104b / 105b and WTRU102c, 102d 102b, 102c or RRH118a, 118b and TRP119a, 119b are IEEE 802.16 (for example, Worldwide Interoperability Standards) Microwave access (WiMAX), CDMA2000, CDMA2000 1X, CDMA2000 EV-DO, Interim Standard 2000 (IS-2000), Interim Standard 95 (IS-95), provisional standard 856 (IS-856), global systems for mobile communications TEM (GSM® registered trademark), GSM® Advanced High-Speed ​​Data Rate (EDGE) It can implement wireless technologies such as GSM (registered trademark) and EDGE (GERAN).

[0048] In Figure 3A, base station 114c is, for example, a wireless router, home Node B, home eNode B, or access point, can be located in a company, home, vehicle, campus, etc. Any suitable RAT to facilitate wireless connectivity within a local area such as a location It can be used. In one embodiment, base station 114c and WTRU102e are IEEE80 Implement wireless technologies such as 2.11 to establish a wireless local area network (WLAN). It is possible. In one embodiment, base station 114c and WTRU102d are IEEE802 Implementing wireless technologies such as .15 to establish a Wireless Personal Area Network (WPAN) It is possible. In a further embodiment, the base station 114c and WTRU102e are cellular RAT (e.g., WCDMA(registered trademark), CDMA2000, GSM(registered trademark)) Picocells or femtocells can be established using LTE, LTE-A, etc. (Figure) As shown in 3A, base station 114b may have a direct connection to the internet 110. Therefore, base station 114c connects via core network 106 / 107 / 109. You may not be asked to access Internet 110.

[0049] RAN103 / 104 / 105 and / or RAN103b / 104b / 105b are , via Internet Protocol (VoIP) service, WTRU102a, 10 One or more of 2b, 102c, and 102d contain voice, data, and applications. , and / or any type of network configured to provide voice It can communicate with core networks 106 / 107 / 109. For example, core network 106 / 107 / 109 are call control, billing services, and mobile location-based services. It provides services such as prepaid calls, internet connectivity, and video distribution. And / or high-level security features such as user authentication can be implemented.

[0050] Although not shown in Figure 3A, RAN103 / 104 / 105 and / or RAN10 3b / 104b / 105b and / or core network 106 / 107 / 109 are Same as RAN103 / 104 / 105 and / or RAN103b / 104b / 105b One RAT or different RATs can communicate directly or indirectly with other RANs. It will be understood. For example, RAN103 / 10 can utilize E-UTRA wireless technology. In addition to being connected to 4 / 105 and / or RAN103b / 104b / 105b The core networks 106 / 107 / 109 also employ GSM® wireless technology. It can communicate with another RAN (not shown).

[0051] Core networks 106 / 107 / 109 also include WTRU102a, 102b, and 10 It serves as a gateway for 2c, 102d, and 102e, and PSTN108 , it may have access to the Internet 110 and / or other networks 112. STN108 is a circuit-switched power supply that provides conventional analog telephone line services (POTS). It may include a communication network. The Internet 110 uses the Transmission Control Protocol (TCP), User Datagram Protocol (UDP), and TCP / IP Internet Protocol The suite uses common communication protocols such as the Internet Protocol (IP). This includes a global system of interconnected computer networks and devices. It is possible. Network 112 is owned and / or operated by other service providers. This may include wired or wireless communication networks that are in operation. For example, network 112 is , RAN103 / 104 / 105 and / or RAN103b / 104b / 105b Another core connected to one or more RANs, which may employ the same RAT or different RATs. This may include networking.

[0052] Some of WTRU102a, 102b, 102c, and 102d within the communication system 100 All of these may include multimode capability, for example, WTRU102a, 102b, 102 c, 102d, and 102e are different wireless networks via different wireless links. It may include multiple transceivers for communication. For example, the WTRU102 shown in Figure 3A. e can employ cellular-based wireless technology, such as base station 114a and IEEE 802 wireless. The technology can be adopted and configured to communicate with base station 114c.

[0053] Figure 3B shows a wireless communication according to an embodiment illustrated herein, such as WTRU102. This is a block diagram of an exemplary apparatus or device configured for a signal, as shown in Figure 3B. As shown, the exemplary WTRU102 includes a processor 118, a transceiver 120, and a transmission / reception unit. Element 122, speaker / microphone 124, keypad 126, display / Touchpad / indicator 128, non-removable memory 130, removable memory Mori 132, power supply 134, Global Positioning System (GPS) chipset 136, and others It may include peripheral devices 138. WTRU102 remains consistent with the embodiment, as described above. It should be understood that the embodiments may include any secondary combination of elements. Furthermore, the embodiments are not limited to However, in particular, the following are important: the transceiver station (BTS), Node-B, and service bases. Controller, Access Point (AP), Home Node-B, Advanced Home Node -B (eNodeB), Home evolved Node-B (HeNB), Home evolved Node - Base stations 114a and 114b and / ma such as gateways and proxy nodes. The nodes that base stations 114a and 114b may represent are depicted in Figure 32B and specified herein. It is assumed that it may include some or all of the elements described therein.

[0054] Processor 118 is a general-purpose processor, special-purpose processor, conventional processor, digital processor A DSP (Digital Signal Processor), multiple microprocessors, associated with DSP cores One or more microprocessors, controllers, microcontrollers, application-specific Integrated circuits (ASICs), field-programmable gate arrays (FPGAs), arbitrary Other types of integrated circuits (ICs), state machines, etc., may be used. The processor 118 is a signal Coding, data processing, power control, input / output processing, and / or WTRU102 It can perform any other functions that enable it to operate in a wireless environment. 118 can be coupled to the transceiver 120, which can be coupled to the transmission / reception element 122. Figure 3 B describes the processor 118 and the transceiver 120 as separate components, The processor 118 and the transceiver 120 are integrated together in an electronic package or chip. It will be understood that they can be combined.

[0055] The transmission / reception element 122 is transmitted via the air interfaces 115 / 116 / 117, It transmits signals to a base station (for example, base station 114a) or receives signals from it. It can be configured as follows. For example, in one embodiment, the transmission / receiving element 122 transmits an RF signal. This may be an antenna configured to transmit and / or receive. (Not shown in Figure 3A) However, RAN103 / 104 / 105 and / or core network 106 / 107 / 109 employs either the same RAT as RAN103 / 104 / 105 or a different RAT. It will be understood that communication with other RANs may occur directly or indirectly. For example, E-UTR In addition to being able to utilize wireless technology and being connected to RAN103 / 104 / 105, the core Networks 106 / 107 / 109 also employ GSM® wireless technology. It can communicate with the RAN (not shown).

[0056] Core networks 106 / 107 / 109 also include WTRU102a, 102b, and 10 It serves as a gateway for 2c, 102d, and PSTN108, inter Access to network 110 and / or other networks 112. PSTN10 8 is a circuit-switched telephone network that provides conventional analog telephone line services (POTS). It may include the Internet 110, Transmission Control Protocol (TCP), User Data The Taggram Protocol (UDP) and the TCP / IP Internet Protocol Suite Interoperability using common communication protocols such as the Internet Protocol (IP) This may include a global system of connected computer networks and devices. Network 112 is owned and / or operated by other service providers. This may include wired or wireless communication networks. For example, network 112 is RAN1 One or more RANs may employ the same RAT as 03 / 104 / 105 or a different RAT. It may include another core network connected to it.

[0057] Some of WTRU102a, 102b, 102c, and 102d within the communication system 100 All of these may include multimode capability, for example, WTRU102a, 102b, 102 c and 102d communicate with different wireless networks via different wireless links. It may include multiple transceivers for this purpose. For example, the WTRU102c shown in Figure 3A is a cell Base stations 114a and IEEE 802 wireless technology can be used. It may be configured to communicate with base station 114b.

[0058] Figure 3B shows a wireless communication according to an embodiment illustrated herein, such as WTRU102. This is a block diagram of an exemplary apparatus or device configured for use in a trust. (Figure 32B) As shown, the exemplary WTRU102 includes a processor 118, a transceiver 120, and a transmission / reception unit. Signal element 122, speaker / microphone 124, keypad 126, display / Touchpad / Indicator 128, non-removable memory 130, removable Memory 132, power supply 134, Global Positioning System (GPS) chipset 136, It may include other peripheral devices 138. WTRU102 remains consistent with the embodiment as described above. It will be understood that the embodiments may include any secondary combination of elements. While not limited to these, in particular, the Transceiver Station (BTS), Node-B, and Service Site controller, access point (AP), home node-B, evolved home node-B ode-B (eNodeB), Home-evolved Node-B (HeNB), Home-evolved N Base stations 114a and 114b such as ODE-B gateways and proxy nodes The nodes that base stations 114a and 114b may represent are depicted in Figure 3B. It is assumed that this may include some or all of the elements described in the details.

[0059] Processor 118 is a general-purpose processor, special-purpose processor, conventional processor, digital processor A DSP (Digital Signal Processor), multiple microprocessors, associated with DSP cores One or more microprocessors, controllers, microcontrollers, application-specific Integrated circuits (ASICs), field-programmable gate arrays (FPGAs), arbitrary Other types of integrated circuits (ICs), state machines, etc., may be used. The processor 118 is a signal Coding, data processing, power control, input / output processing, and / or WTRU102 It can perform any other functions that enable it to operate in a wireless environment. 118 can be coupled to the transceiver 120, which can be coupled to the transmission / reception element 122. Figure 3 B describes the processor 118 and the transceiver 120 as separate components, The processor 118 and the transceiver 120 are integrated together in an electronic package or chip. It will be understood that they can be combined.

[0060] The transmission / reception element 122 is transmitted via the air interfaces 115 / 116 / 117, It transmits signals to a base station (for example, base station 114a) or receives signals from it. It can be configured as follows. For example, in one embodiment, the transmission / receiving element 122 transmits an RF signal. It may be an antenna configured to transmit and / or receive. In one embodiment, The transmission / reception element 122 transmits and / or transmits IR, UV, or visible light signals, for example. This can be an emitter / detector configured to receive. In a further embodiment, transmission The receiving element 122 may be configured to transmit and receive both RF and optical signals. The transmission / reception element 122 transmits and / or transmits any combination of wireless or wired signals. It will be understood that it can also be configured to receive.

[0061] In addition, although the transmission / reception element 122 is depicted as a single element in Figure 3B, WT RU102 may include any number of transmission / reception elements 122. More specifically, WTRU 102 may employ MIMO technology. Therefore, in an embodiment, WTRU102 is Transmits and receives radio signals via air interfaces 115 / 116 / 117. It may include two or more transmission / reception elements 122 (e.g., multiple antennas).

[0062] The transceiver 120 modulates the signal transmitted by the transmission / receiving element 122. It may also be configured to demodulate the signal received by the transmission / reception element 122. As noted, the WTRU102 may have multimode capability. Therefore, transceiver 1 20 is that WTRU102 supports multiple R standards such as UTRA and IEEE802.11. It may include multiple transceivers to enable communication via AT.

[0063] The WTRU102 has a processor (118), a speaker / microphone (124), and a keypad (1). 26, and / or display / touchpad / indicator 128 (e.g., LCD) Display (LCD) display unit or organic light-emitting diode (OLED) It is coupled to the display unit and can receive user input data from there. Processor 118 also stores user data in speaker / microphone 124, keypad 126, and It can output to the display / touchpad / indicator 128. In addition, Rosser 118 includes non-removable memory 130 and / or removable memory 13 Information can be accessed from any suitable type of memory, such as 2, and data can be stored within it. Non-removable memory 130 is random access memory (RAM). Read-only memory (ROM), hard disk, or any other type of memory storage The device may include a removable memory 132, a subscriber identification module (S This may include IM cards, Memory Sticks, Secure Digital (SD) memory cards, etc. In one embodiment, the processor 118 is a server or home computer (not shown). Accessing information from memory that is not physically located on the superior WTRU102, and within that, It is possible to remember data.

[0064] The processor 118 can receive power from the power supply 134, and other components within the WTRU 102 Power supply 134 may be configured to distribute and / or control power to the conductor. Any suitable device for supplying power to TRU102 may be. For example, power supply 134 is This may include one or more dry cell batteries, solar cells, fuel cells, etc.

[0065] The processor 118 also provides location information about the current location of the WTRU 102 (for example, It can be coupled to a GPS chipset 136, which can be configured to provide degrees and latitude. In addition to information from GPS chipset 136, or instead, WTRU102 It is transmitted via air interfaces 115 / 116 / 117 to a base station (for example, a base station Location information is received from 114a, 114b) and / or from two or more nearby base stations. The location can be determined based on the timing of the received signal. WTRU102 is Location information can be obtained through any preferred location determination method while remaining consistent with the embodiment. They will understand this.

[0066] The 118 processor also offers additional features, functionality, and / or wired or wireless connectivity. One or more software and / or hardware models that provide connectivity It may be coupled to other peripheral devices 138, which may include joules. For example, peripheral device 138 is Accelerometers, biometric (e.g., fingerprint) sensors and various other sensors, e-compass, Satellite transceivers, digital cameras (for photos or videos), Universal Serial Bus (U SB) port or other interconnection interface, vibration device, television transmitter / receiver, Headphone-free headset, Bluetooth® module, frequency modulation (F M) Wireless unit, digital music player, media player, video game player This may include Joule, internet browsers, etc.

[0067] WTRU102 is used in sensors, consumer electronics, smartwatches, or smart clothing, etc. Wearable devices, medical or e-health devices, robots, industrial equipment, drones , embodied in other devices or equipment such as cars, trucks, trains, or airplanes. It is possible. WTRU102 may have an interconnection interface that includes one of the peripheral devices 138. Such devices or devices via one or more interconnection interfaces such as faces It can be connected to other components, modules, or systems of the chair.

[0068] Figure 3C is a diagram of the RAN103 and core network 106 according to one embodiment. As mentioned above, RAN103 employs UTRA wireless technology and air interface It can communicate with WTRU102a, 102b, and 102c via -115. AN103 can also communicate with the core network 106. As shown in FIG. 3C, R AN103 may each include one or more transceivers for communicating with WTRU102a, 102b, 102c via air interface 115, Node-B14 0a, 140b, 140c may be included. Node-B140a, 140b, 140c may each be associated with a particular cell (not shown) within RAN103. RAN103 may also include RNC142a, 142b. It will be understood that RAN103 may include any number of Node-Bs and RNCs while remaining consistent with the embodiments.

[0069] As shown in FIG. 3C, Node-B140a, 140b can communicate with RNC142a In addition, Node-B140c can communicate with RNC142b. Node-B 140a, 140b, 140c can communicate with individual RNC14 2a, 142b via the Iub interface. RNC142a, 142b can communicate with each other via the Iur interface. RNC142a, 142b may each be configured to control the individual Node-Bs connected to them, 140a, 140b, 140c. In addition, RNC142a, 142b may each be configured to perform or support other functionality such as outer loop power control, load control, admission control, packet scheduling, handover control, macro-diversity, security functions, data encryption, etc. As shown in FIG. 3C, the core network 106 includes a media gateway (MGW) 144

[0070] , a mobile switching center (MSC) 146, a serving GPRS support node (SG ​SN)148, and / or Gateway GPRS Support Node (GGSN)150 This may include the aforementioned elements, each of which is described as part of the core network 106. Any one of these elements is an entity other than the core network operator. It will be understood that it may be owned and / or operated by.

[0071] RNC142a within RAN103 connects to the core network via the IuCS interface. It can be connected to MSC146 in workpiece 106. MSC146 is connected to MGW144. MSC146 and MGW144 are compatible with WTRU102a, 102b, and 102c. , provides access to circuit exchange networks such as PSTN108, WTRU102a, This can facilitate communication between 102b, 102c and conventional terrestrial communication devices.

[0072] RNC142a within RAN103 also communicates via the IuPS interface to the core network. It can be connected to SGSN148 in network 106. SGSN148 is GGSN15 It can be connected to 0. SGSN148 and GGSN150 are WTRU102a, 102 b, 102c provides access to packet-switched networks such as the Internet 110. This facilitates communication between WTRU102a, 102b, 102c and IP-enabled devices. obtain.

[0073] As mentioned earlier, core network 106 is also owned by other service providers. Network 1 may include other wired or wireless networks operated by and / or other such networks. It can be connected to 12.

[0074] Figure 3D is a diagram of the RAN104 and core network 107 according to one embodiment. As mentioned above, RAN104 employs E-UTRA wireless technology and air interface It can communicate with WTRU102a, 102b, and 102c via face 116. RAN104 can also communicate with core network 107.

[0075] RAN104 may include eNode-B160a, 160b, and 160c, but RAN 104 understands that it may include any number of eNode-B, while remaining consistent with the embodiment. It will be. eNode-B160a, 160b, and 160c are, respectively, air interfaces. To communicate with WTRU102a, 102b, and 102c via face 116 It may include more than one transceiver. In one embodiment, eNode-B160a, 160b, 160c can implement MIMO technology. Therefore, eNode-B160a can, for example Then, using multiple antennas, the wireless signal is transmitted to the WTRU102a, and from there the wireless signal You can receive the number.

[0076] eNode-B160a, 160b, and 160c are each specific cells (as shown in the illustration) (and) may be associated with, wireless resource management decisions, handover decisions, uplink and / or configured to handle user scheduling, etc., in the downlink. This can be achieved. As shown in Figure 3D, eNode-B160a, 160b, and 160c are They can communicate with each other via the X2 interface.

[0077] The core network 107 shown in Figure 3D is a Mobility Management Gateway (MME). 162, a serving gateway 164, and a packet data network (PDN) gateway 166 may be included. Each of the foregoing elements is depicted as part of the core network 107, but it will be understood that any one of these elements may be owned and / or operated by an entity other than the core network operator. The MME 162 may be connected to each of the eNode-Bs 160a, 160b, and 160c within the RAN 104 via the S1 interface and may serve as a control node. For example, the MME 162 may be responsible for authenticating users of the WTRU 102a, 102b, 102c, activating / deactivating bearers, selecting a particular serving gateway during the initial attach of the WTRU 102a, 102b, 102c, etc. The MME 162 may also provide control plane functions for switching between the RAN 104 and another RAN (not shown) that employs another radio technology such as GSM (registered trademark) or WCDMA (registered trademark). The serving gateway 164 may be connected to each of the eNode-Bs 160a, 160b, and 160c within the RAN 104 via the S1 interface. The serving gateway 164 may generally route and transfer user data packets to / from the WTRU 102a, 102b, 102c. The serving gateway 164 may also be an anchor for the user plane during eNodeB handover and a paging target when downlink data is available for the WTRU 102a, 102b, 102c. The PDN gateway 166 may be connected to the serving gateway 164 via the S5 / S8 interface. The PDN gateway 166 may generally route and transfer user data packets between the WTRU 102a, 102b, 102c and the packet data network. The PDN gateway 166 may also be responsible for allocating IP addresses to the WTRU 102a, 102b, 102c and may provide other functions such as policy enforcement and charging. It should be noted that the above description is only an example, and the specific implementation may vary depending on the network architecture and requirements.

[0078] The MME 162 can be connected to each of the eNode-Bs 160a, 160b, and 160c within the RAN 104 via the S1 interface and can play the role of a control node. For example, the MME 162 can be responsible for authentication of users of the WTRU's 102a, 102b, 102c, activation / deactivation of bearers, selection of a specific serving gateway during the initial attach of the WTRU's 102a, 102b, 102c, etc. The MME 162 can also provide control plane functions for switching between the RAN 104 and other RANs (not shown) that employ other radio technologies such as GSM (registered trademark) or WCDMA (registered trademark). The serving gateway 164 can be connected to each of the eNode-Bs 160a, 160b, and 160c within the RAN 104 via the S1 interface. The serving gateway 164 can generally route and transfer user data packets to / from the WTRU's 102a, 102b, 102c. The serving gateway 164 can also be the anchor for the user plane during eNodeB handover and the paging target when downlink data is available for the WTRU's 102a, 102b, 102c. The PDN gateway 166 can be connected to the serving gateway 164 via the S5 / S8 interface. The PDN gateway 166 can generally route and transfer user data packets between the WTRU's 102a, 102b, 102c and the packet data network.

[0079] The PDN gateway 166 can also be responsible for allocating IP addresses to the WTRU's 102a, 102b, 102c and can provide other functions such as policy enforcement and charging. It should be noted that the above description is only an example, and the specific implementation may vary depending on the network architecture and requirements. The MME 162 may be connected to each of the eNode-Bs 160a, 160b, and 160c within the RAN 104 via the S1 interface and may serve as a control node. For example, the MME 162 may be responsible for authenticating users of the WTRU 102a, 102b, 102c, activating / deactivating bearers, selecting a particular serving gateway during the initial attach of the WTRU 102a, 102b, 102c, etc. The MME 162 may also provide control plane functions for switching between the RAN 104 and another RAN (not shown) that employs another radio technology such as GSM (registered trademark) or WCDMA (registered trademark). The serving gateway 164 may be connected to each of the eNode-Bs 160a, 160b, and 160c within the RAN 104 via the S1 interface. Other context management and storage for Riga, WTRU102a, 102b, and 102c The function can be implemented.

[0080] Serving gateway 164 also provides to WTRU102a, 102b, and 102c. Provides access to packet-switched networks such as Internet 110, and WTRU10 PDN gates can facilitate communication between 2a, 102b, 102c and IP-enabled devices. It can be connected to way 166.

[0081] The core network 107 can facilitate communication with other networks. For example, the core network Network 107 is used with WTRU102a, 102b, 102c, and PSTN108, etc. It provides access to the road switching network and follows WTRU102a, 102b, 102c and It can facilitate communication with the next-generation terrestrial communication device. For example, the core network 107, It serves as an interface between core network 107 and PSTN108. Therefore, an IP gateway (for example, an IP Multimedia Subsystem (IMS) server) It may include or communicate with. In addition, the core network 107 is WTRU10 2a, 102b, 102c are owned and / or operated by other service providers. Access to network 112 may include other wired or wireless networks. It can be provided.

[0082] Figure 3E is a diagram of the RAN105 and core network 109 according to one embodiment. The RAN105 employs IEEE 802.16 wireless technology and uses an air interface. Access communicates with WTRU102a, 102b, and 102c via S117. It could be an ASN (Service Network). Furthermore, as will be discussed below... WTRU102a, 102b, 102c, RAN105 and different functional entities and The communication link with network 109 can be defined as a reference point.

[0083] As shown in Figure 3E, RAN105 is connected to base stations 180a, 180b, and 180c. This may include the ASN gateway 182, but RAN 105 remains consistent with the embodiment. It will be understood that this may include any number of base stations and ASN gateways. Local stations 180a, 180b, and 180c are each associated with a specific cell within RAN105. It can be used via air interface 117 to WTRU102a, 102b, 102c It may include one or more transceivers for communicating with base station 180a, 180b and 180c can implement MIMO technology. Therefore, base station 180a is an example. For example, multiple antennas are used to transmit a wireless signal to the WTRU102a, and from there wireless Signals can be received. Base stations 180a, 180b, and 180c also have a handoff trigger. Channel establishment, wireless resource management, traffic classification, and enforcement of Quality of Service (QoS) policies. It can provide mobility management functions such as traffic aggregation. The ASN gateway 182 aggregates traffic. It can serve as a point, paging, subscriber profile caching, etc. They may be responsible for routing to network 109, etc.

[0084] Air interface between WTRU102a, 102b, 102c and RAN105 117 can be defined as an R1 reference point that implements the IEEE 802.16 specification. In addition WTRU102a, 102b, and 102c are logical interfaces, respectively. A (not shown) can be established with the core network 109. WTRU102a, 102b, 10 The logical interface between 2c and core network 109 is used for authentication, authorization, and IP hosting. It can be used as a fixed R2 reference point for configuration management and / or mobility management. It can be justified.

[0085] The communication links between base stations 180a, 180b, and 180c are between base stations See R8, which includes protocols for facilitating WTRU handover and data transfer. It can be defined as a point. Base stations 180a, 180b, 180c and ASN gateway 18 The communication link between 2 and WTRU10 can be defined as the R6 reference point. The R6 reference point is WTRU10 Based on the mobility events associated with 2a, 102b, and 102c respectively, This may include protocols to facilitate quality management.

[0086] As shown in Figure 3E, RAN105 can be connected to the core network 109. The communication link between RAN105 and core network 109 is, for example, used for data transfer and This may be defined as an R3 reference point, including protocols for promoting mobility management capabilities. The core network 109 is a Mobile IP Home Agent (MIP-HA) 18 This may include 4, an authentication, authorization, and billing (AAA) server 186, and a gateway 188. Each of the aforementioned elements is described as part of the core network 109, but these elements Any one of the elements is owned by an entity other than the core network operator. It will be understood that it may and / or be operated.

[0087] MIP-HA may be responsible for IP address management, including WTRU102a, 102b, etc. 102c and 102c roam between different ASNs and / or different core networks. This may make it possible to do so. MIP-HA184 is compatible with WTRU102a, 102b, and 102c It provides access to packet-switched networks such as Internet 110, and WTR This can facilitate communication between U102a, 102b, 102c and IP-enabled devices. AAA Server 186 may be responsible for supporting user authentication and user services. Gateway 188 can facilitate interworking with other networks. For example, Gateway 188 connects to WTRU102a, 102b, 102c, and PSTN108 It provides access to the circuit exchange network, including WTRU102a, 102b, and 102 c can facilitate communication between and conventional terrestrial communication devices. In addition, gateway 188 WTRU102a, 102b, 102c, owned by other service providers Network 112 may include and / or other wired or wireless networks that are operated. It may provide access to this.

[0088] Although not shown in Figure 3E, RAN105 may be connected to other ASNs, forming a core network. It will be understood that RAN 109 can be connected to other core networks. The communication link between 105 and other ASNs is the WTRU between RAN105 and other ASNs. This may include protocols for coordinating the mobility of 102a, 102b, and 102c, R 4. Can be defined as reference points between core network 109 and other core networks. The communication link is an interface between the home core network and the visited core network. It can be defined as an R5 reference point, which may include protocols for facilitating communication.

[0089] The core network described herein and illustrated in Figures 3A, 3C, 3D, and 3E The entity is given to those entities in an existing 3GPP specification. Although identified by name, in the future, those entities and functionalities may be different from others. An entity or function that may be identified by its name may conform to future 3GPP NR specifications. It is understood that these may be combined in future specifications published by 3GPP. Therefore, the special features described and illustrated in Figures 3A, 3B, 3C, 3D, and 3E are described and illustrated in Figures 3A, 3B, 3C, 3D, and 3E. The specific network entities and functionalities provided are for illustrative purposes only and are not described herein. Whether the subject matter shown and claimed is currently defined or will be defined in the future. Regardless, it is understood that it can be realized or implemented in any similar communication system. I want to.

[0090] Figure 3F shows RAN103 / 104 / 105 and core network 106 / 107 / 109. , PSTN108, Internet110, or some other network112 Communication networks, such as the D or functional entities, as illustrated in Figures 3A, 3C, 3D, and 3E. An exemplary computing system 90 in which one or more devices of the work can be realized This is a diagram of a lock. The computing system 90 includes a computer or server. This may also apply, primarily to the location or means by which such software is stored or accessed. Regardless, by computer-readable instructions which may be in the form of software It can be controlled. Such computer-readable instructions are computer systems The system 90 can be run within the processor 91. The processor 91 is a general-purpose processor. Processors, special-purpose processors, conventional processors, digital signal processors (DS) P) Multiple microprocessors, one or more microprocessors associated with a DSP core Processors, controllers, microcontrollers, application-specific integrated circuits (ASICs), Field-programmable gate array (FPGA) circuits, any other type of integrated circuit ( It may be an IC, a state machine, etc. The processor 91 performs signal coding, data processing, Power control, input / output processing, and / or computing system 90 communicates via a network It can perform any other functionality that enables it to operate within the network. 81 performs additional functions or assists the processor 91, distinct from the main CPU 91. These are indeed different, arbitrary processors. Processor 91 and / or coprocessor 81 This involves receiving, generating, and processing data related to the methods and apparatus disclosed herein. It is possible.

[0091] During operation, processor 91 fetches, decodes, and executes instructions, and computes Information is transmitted to other resources via the system bus 80, which is the main data transfer path of the system. To, and from there, transfer. Such a system bus is a computing system The system bus connects the components within the M90 ​​and defines the medium for data exchange. 80 is typically a data line for sending data and a line for sending addresses. The address line, for sending interrupts, and for operating the system bus. This includes control lines. An example of such a system bus 80 is PCI (peripheral components It is a bus (interconnection).

[0092] The memory connected to the system bus 80 includes random access memory (RAM) 82, It includes read-only memory (ROM) 93. Such memory stores and reads information. Includes circuitry that allows it to be extracted. ROM93 is generally easy to modify. This includes stored data that cannot be processed by the processor. 91 or other hardware devices may read or modify Yes, it is possible. Access to RAM82 and / or ROM93 is via the memory controller 92. It can be controlled by the memory controller 92 when an instruction is executed, the virtual address It can provide an address translation function that converts to a physical address. (Memory controller 92) It also isolates processes within the system and separates system processes from user processes. This may provide a memory protection function. Therefore, a program that starts in the first mode can Accessing only the memory mapped by its own process virtual address space. This is possible, and unless inter-process memory sharing is configured, the virtual address of another process It is not possible to access memory within the space.

[0093] In addition, the computing system 90 includes a processor 91, a printer 94, and a key Responsible for communicating commands to peripherals such as board 84, mouse 95, and disk drive 85. It may include a peripheral device controller 83.

[0094] The display 86, controlled by the display controller 96, is a computer It is used to display the visual output generated by the display system 90. Visual output may include text, graphics, video graphics, and video. Visual output may be provided in the form of a graphical user interface (GUI). The Display 86 is a CRT-based video display, an LCD-based flat panel display. Flat panel displays, gas plasma-based flat panel displays, or touch panels It can be implemented with a Nell. The display controller 96 transmits to the display 86. Includes electronic components required to generate the video signal.

[0095] Furthermore, the computing system 90 is To enable communication with other nodes or functional entities in their network. RAN103 / 104 / 105, Core Network 106 / 107 / 109, PST N108, Internet 110, or other figures 3A, 3B, 3C, 3D, and 3E Connect the computing system 90 to an external communication network such as network 112. It may include, for example, a communication circuit such as a network adapter 97, which can be used for that purpose. The communication circuit, either alone or in combination with the processor 91, is described herein. To perform the transmission and reception steps of a device, node, or functional entity It can be used.

[0096] Any of the apparatus, systems, methods, and processes described herein or It all boils down to computer-executable instructions stored on a computer-readable storage medium. It can be embodied in the form of (for example, program code), and its instructions are to the processor 118 When executed by a processor such as 91, the processor receives the following instructions as described herein. Please understand how to implement and / or carry out the system, method, and process. Specifically, any of the steps, operations, or functions described herein may not be performed. It is implemented in the form of computer executable instructions, such as wireless and / or wired networks. On the processor of a device or computing system configured for network communication It is possible. Computer-readable storage media can store information in any non-transient manner. (i.e., volatile and non-volatile media implemented by tangible or physical) methods or techniques. This includes bodies, both removable and non-removable media, but such computer readable media Computer-readable storage media do not contain signals. Computer-readable storage media are R AM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, Digital multipurpose discs (DVDs) or other optical disc storage devices, magnetic cassettes, magnetic A magnetic tape, magnetic disk storage device, or other magnetic storage device, or a device that records the desired information. It can be used to store information and can be accessed by a computer. This includes, but is not limited to, any other tangible or physical medium.

[0097] (NR-SS signal design) Aspects of this application describe a scalable DL synchronous channel design. This design is As shown in Figure 3A-E and described above, a 5G UE is related to the subcarrier spacing. This allows for blind timing and frequency acquisition. It may be used for a secondary synchronization channel. According to this application, DL synchronization design method It is assumed that it will be possible to support different numerology. As a result, 5G UE is based on either a specific subcarrier interval for y × Δf or common DL synchronization. And it is possible to perform timing synchronization and acquisition for all 5G numerology. It should.

[0098] According to one embodiment, the DL synchronization protocol supports minimum subcarrier interval It is provided for the purpose of enabling certain 5G applications across various subcarriers. If intervals such as Δf, 2Δf, ...MΔf are supported, DL synchronization is the minimum sub Carrier interval will be used. Preferably, the DL synchronous design is based on the ZC sequence. It then carries the scalable interval coefficient y. Minimum sub-capacity for 5G applications. An exemplary sequence for PSS frequency allocation based on rear spacing is illustrated in Figure 4A.

[0099] According to another embodiment, the DL synchronization architecture is deployed in, for example, indoors / outdoors, and in the street. Based on the square cell / picocell etc., the default subcarrier interval = y × Δf Designed to support cells with scalable subcarrier spacing. The number is

number

[0100] According to one embodiment, the scalable subcarrier spacing coefficient is carried on the PSS signal. The PSS signal can be BPSK, QPSK, or quadrature amplitude modulation (QAM). Using one of the higher-order modulations, such as the scalable subcarrier spacing coefficient y It can carry excess information. For example, the PSS signal is generated as shown in the following equation. It is possible to do so.

number

[0101] In the formula, d is a BPSK, QPSK, or QAM symbol. The amount of information is the modulation order. It is limited by number. For example,

number

[0102] According to another embodiment, the scalable subcarrier spacing coefficient is transported on the SSS. This is possible. An exemplary design of an SSS sequence structure is given below.

number

[0103] In the formula, a u(p) ,p={0,1} can be expressed as follows: square root u(p), scale An alternative form of ZC sequence with a tangleable subcarrier spacing coefficient y and length N. ru.

number

[0104] ZC sequence a with odd length N and root u(p) u(p) (n), relatively prime to N If that is the case, a u(p) (yn) is shown as a u(p) Decimation with coefficient y of (n) The sequence that has been recoded is still a ZC sequence. a u(p) (yn) will have the following properties:

number

number

[0105] For example, if N=31, u(0)=23, and y=2, the decimated sce Kens a u(0)=23 (n) is the square root of v(0) = 30 = mod (23 × 2, 2, N) This is equivalent to the ZC sequence accompanied by, i.e., the following:

number

[0106] Sequence b y(n) is a sequence of length N consisting of cyclic shifts of the base sequence b(n). This is a scrambling (or masking) sequence, where y is a cyclic shift.

number

number

number

number

number

[0107] According to an exemplary embodiment, the SSS detection function architecture is illustrated in Figure 5. Therefore, SSS resource mapping can be a block interleaver. Alternative Therefore, SSS resource mapping can be a subcarrier interleaver. In one embodiment, SSS resource mapping can follow the technique described above. According to the implementation method, Figure 6A shows the minimum subcarrier spacing using symbol interleaving. The SSS DL synchronous sequence frequency distribution for the 2Δf subcarrier spacing shown above is illustrated. Figure 6B shows the 2Δf subcarrier interval on the minimum subcarrier spacing using block interleaving. Figure 6C illustrates the SSSDL synchronous sequence frequency allocation for carrier spacing. This is a 2Δf subcarrier with a 2Δf subcarrier spacing using symbol interleaving. Figure 6D illustrates the SSS DL synchronous sequence frequency distribution for rear spacing. 2Δf subcarrier spacing with 2Δf subcarrier spacing using quinterleaving The SSS DL synchronous sequence frequency distribution for this purpose is illustrated.

[0108] In yet another embodiment, UE synchronization using a scalable subcarrier spacing coefficient Rosilla is explained. Here, the scalable subcarrier spacing coefficient is PSS. It is incorporated into either SSS. In the first step, the UE detects the primary synchronization signal. The UE then performs the following: In the second step, the UE performs secondary synchronization signal detection. This performs cell identification detection. This is followed by verification. Finally, the UE performs PBCH Decode We will implement the procedure.

[0109] According to one embodiment, for example, as shown in Figure 7A, a scalable subcarrier If the interval coefficient y is transmitted over the PSS, the following protocol follows. Arabic numerals indicate the Listed for the steps. For example, in the PSS detection stage (step 1), the UE receives The given PSS is related to Q possible PSS sequences. Here, Q is the number of possible PSS sequences. This is the maximum number of different PSS sequences that can be ported. UE also relates to the maximum correlation result. Select the strongest peak in the sequence and respond accordingly.

number

[0110] Next, in the SSS detection phase, the UE receives the signal and P possible SSS sequences. Step 3 involves relating them to each other. P is the maximum number that can be supported. These are different SSS sequences. Next, the UE selects the strongest peak and the corresponding

number

number

number

number

number

[0111] According to another embodiment, as shown in Figure 7B, for example, a scalable subcarrier The interval coefficient y can be derived via SSS. The following protocol is used in this scenario. It is adopted. Specifically, in the PSS detection stage, the UE receives the received signal and processes it into Q possible values. The PSS sequence can be related to each other (Step 1). Q is the maximum that can be supported. It is a PSS sequence of several. Next, the UE selects the strongest peak and its root sequence. Correspondence with u

number

[0112] Next, in the SSS detection phase, the UE receives the signal and P possible SSS sequences. Step 3 involves relating them to each other. P is the maximum number that can be supported. These are different SSS sequences. Next, the UE selects the strongest peak and the corresponding route. The sequence v is obtained. The corresponding scalable subcarrier spacing coefficient y is also derived. (Prior to step 4). The square root of v and the scalable subcarrier spacing coefficient y are After acquisition, the square root u is obtained (via equation (6)), and the corresponding

number

number

number

number

number

[0113] (Enhanced DL-synchronous Channel preamble recognition) DL synchronous preamble design is intended to carry more preamble identification. Proposed to expand preamble ID design. The DL synchronous channel signal is CAZA Two combinations of C or ZC sequences can be used. AZAC sequences are either subcarrier interleaved or block interleaved. This is possible. Figure 8 shows two CAZACs as subcarrier interleaves within FD. The sequence is shown.

[0114] According to aspects of this application, initial access to the beamforming base for NR systems is improved. The solution to provide this will be explained. Another aspect is RRC_Conne Beamform training in the CTED state is described, and in another aspect, the NR system A flexible frame structure designed for this purpose is described.

[0115] In one embodiment, a device on a network is used for beamforming training within the network. It is described as including non-transient memory, along with instructions stored on it. The device also , operably coupled to non-transient memory, (i) from node, beamforming training reference signal (ii) receive, determine some beams in the beamforming training reference signal, and (iii) Select a beam from several beams, (iv) the symbol timing of the selected beam, Calculate the subframe and frame timing, and (v) the beam for the selected beam. Includes a processor capable of executing instructions to decode a system identifier.

[0116] In one aspect, the processor further involves physical broadcasting associated with beam identification. The processor can execute instructions to decode the channel. On another level, the processor can also, Beam identification feedback employing uplink transmission beamforming is being applied to the new wireless node. The instructions to be transmitted can be executed. Another aspect is that the processor can also obtain the beam. It is possible to execute a command to receive an acknowledgment from a new radio node. The processor then further considers the physical broadcast channel associated with beam identification. The command to decode it is executable.

[0117] In one embodiment, BF sweep and BF training are performed at NR nodes, transmission and reception points (T It is assumed that this may be done in the RP, or in the Remote Radio Head (RRH). As a result, NR-nodes, TRPs, and RRHs may be interchangeable. Furthermore, D Time intervals including L and / or UL transmissions are flexible for different numerology. The RAN slice can be configured statically or semi-statically. Tarval is referred to as a subframe.

[0118] (Initial access to the beamforming base) In one embodiment, the NR node uses a periodic beamforming training reference signal (BT-RS) It can be transmitted to the UE and initial access can be performed. Periodic BT-RS is for initial access During the development phase, services can be provided for two main functions for the UE.

[0119] One of these features includes DL timing-frequency synchronization and PBCH demodulation. BT-RS uses N (wide) bitwise BT-RS in each periodic initial access DL transmission interval. It is transmitted via sweep through the beam. The initial access DL transmission duration for each beam is Q. Set to the OFDM symbol, K beams, DL for each beam transmission duration When beam sweeping is performed simultaneously, the total transmission duration for all N beams is:

number

number

number

number

[0120] BT-RS transmission periodicity P, number of symbol durations Q for beam transmission duration, beam The number of simultaneous transmissions K is each multiple numerology or RAN slices within the NR system. It can be configured independently to support numerology, as shown in Figure 10C. Each 3RAN slice subband contains its own BT-RS within its respective frequency range.

[0121] There are two possible options for BT-RS configuration. One option is: Each supported numerology or RAN slice has its own BT-RS settings / configuration. This is what it is. Another option is that multiple numerology or RAN slices are the same BT- This is for sharing RS settings / configurations.

[0122] In the following example, we assume that two different numerology systems are supported within the NR system. Without losing generality, one type of numerology (Numerology 1) has a broader range of sub-characters than the other (Numerology 2). Assume there is a rear interval. Therefore, numerology 1 has a shorter symbol time than numerology 2. In this embodiment shown in Figure 11, with respect to Numerology 1, N1=5, K1=1, and For Numerology 2, we use Q1=1, and for Numerology 2, we use N2=3, K2=1, and Q2=2. Let's assume it's broadcasting. The periodicity of numerology 1BT-RS is two in this embodiment. Set to the subframe (i.e., P=2), the periodicity of numerology 2BT-RS is 5 It is set to the subframe (i.e., P=5). Different numerology also have initial access. Therefore, the same BT-RS settings can be shared, meaning that the UE can support all For numerology to be performed, it is only necessary to detect the shared BT-RS settings.

[0123] Figure 11 shows the shared BT-RS using two supported numerology systems. In the example, the NR-Node / TRP uses two numerology tools and the UE performs initial access. It only supports shared BT-RS settings. BT-RS has latency and device capabilities. Depending on the BF sweep requirements, etc., it may be allocated to one of the numerology subbands.

[0124] Furthermore, BT-RS can be supported within a self-contained subframe. In a self-contained subframe, BT-RS is a known frequency-time interval x. It can be installed in the DL resource i. In Figure 12, NR BT-RS starts D It is installed in the L symbol, and its periodicity is set to a P=5 interval. BT-RS setting The configuration can be predefined with a fixed configuration, as shown in Figure 13A, or Figure 13 As shown in B, when the interval is reconstructed using different numerology, semi-static It can be configured. Reconfiguration by NR-Node or TRP is to the UE, RRC or MAC. This information may be indicated via system information broadcasts such as messages or high-level signaling. ru.

[0125] (Cell (or sector or RAN slice) synchronization and timing acquisition) In one embodiment, the UE is in the initial access phase, and the cell / sector / RAN slider When the UE does not have knowledge of the timing information, it monitors the periodic transmission BT-RS, Symbol timing, subframe timing, and frame timing can be obtained. The UE uses or does not use RX beamforming to correlate N beams (and Timing synchronization can be performed based on N assumptions. N is the number of UEs B The BT-RS can be associated with a counter so that the number of beams in the T-RS can be determined. Therefore, it may be known to UE.

[0126] The DL initial access signal consists of the DL synchronization channel (signal), beam reference signal, and PBC. It includes an H channel, and the DL initial access signal is carried by the DL beam sweep block. Each beam sweep block contains either a single OFDM or multiple OFDM symbols. Furthermore, the DL beam sweep subframe may include multiple beam sweep blocks, and the DL synchronization channel Nell PSS and SSS can be installed on different OFDM symbols and beam sweep. The pull block contains only one DL synchronization channel, and the beam reference signal and PBCH are, PBCH may coexist within the same OFDM symbol or within different OFDM symbols, and DL is the same The transmission period may differ from that of the channel and beam reference signal.

[0127] If the DL synchronous channel carries both cell and beam IDs, the UE is detected. It is possible to identify the DL beam sweep block that should be swept, and the detected beam sweep block and It is possible to calculate the timing offset between the DL sweep subframe and the subframe.

[0128] If the DL synchronization channel only carries the cell ID, the UE uses the beam ID as the beam reference. It can be detected from the signal. Therefore, the UE detects the DL beam sweep. The lock can be identified, and the detected beam sweep block and DL sweep subframe can be identified. It is possible to specify a timing offset between these two points.

[0129] In NR, the initial access procedure consists of the following four subprocedures and signals. It becomes.

[0130] 1. Initial synchronization and cell search DL Synchronization Channels: PSS and SSS

[0131] 2. Beam training and tracking Beam reference signal

[0132] 3. MIB System Information Delivery PBCH channel

[0133] 4. Random Access UL PRACH channel

[0134] NR refers to LF-NR (i.e., below 6 GHz) and HF-NR (i.e., below 6 GHz). It supports both deployments (above GHz). In LF-NR, a single, wider beam is used. , which may be sufficient for the target range. However, in HF-NR, a wider beam than a single one is The beam may not be sufficient for the target area. Therefore, multiple narrow beams are used. This is a preferred solution for improving the coverage area in F-NR. Therefore, N R is single-beam-based (or single-sector) and for initial access signal transmission. It can support both multi-beam (multi-sector) based approaches. Initial access The signal is a DL synchronization channel (e.g., PSS / SSS, beamforming reference signal, and P Includes BCH channels. Single and multi-beam implementations for initial access signal transmission are available. This is illustrated in Figure 14. In Figure 14A, the DL initial access signal is a single, wider beam. It is transmitted using [this method]. In Figure 14B, the DL initial access signal is transmitted using each narrow beam. Each narrow beam is transmitted and aimed at a different horizontal angle for the 2D beam moment.

[0135] Transmitting a large number of beams simultaneously may be limited in NR nodes, One possible solution is to use a beam sweep method for the DL initial access signal. The objective is to transmit multiple beams. A sweep block is a time unit for sweeping the beams. A single OFDM symbol, for example, or multiple OFDM symbols, is defined. Sweep either a beam or multiple beams in a sweep block (time). In addition, A beam sweep subframe can consist of multiple sweep blocks. Figure 15 shows a DL sweep subframe. Examples of frames and blocks are shown. The DL beam sweep subframe is at time T. This can be transmitted periodically. This periodic time T is URLLC, mMTC, or eMBB This can vary depending on the application, such as the service. In addition, single or multiple sweeps Subframes can be used within the NR system.

[0136] The beam sweep block includes a DL synchronization channel (PSS / SSS), a beam tracking reference signal, It can also carry DL initial access signals such as PBCH channels. OFDM symbols When one of these is used per beam sweep block, the DL synchronous channel, beam base Quasi-signals and PBCH should coexist within the OFDM symbol. In this case, DL is the same. The phase channel, beam reference channel, and PBCH are FDMs within the OFDM symbol. If multiple OFDM symbols are used per beam sweep block, each beam The sweep block may have the following options:

[0137] (i) DL synchronization channels PSS / SSS must be placed on different OFDM symbols. It is possible.

[0138] (ii) If there is only one DL synchronization channel in the beam sweep block, the PSS is Located in either the last OFDM symbol or the first symbol within the beam sweep block. .

[0139] (iii) The beam reference signal and PBCH may have the same OFDM symbol or different OF They can coexist within a DM symbol. Or

[0140] (iv) The PBCH has a different transmission period from the DL synchronous channel and the beam reference signal. obtain.

[0141] An exemplary beam sweep block with a single OFDM symbol is shown in Figure 16A. In this embodiment, DL synchronization and PBCH coexist. A bee with multiple OFDM symbols. An example of the sweep block is shown in Figure 16B. In this exemplary figure, DL synchronization and PBC are used. H and the beam reference signal can be set to different OFDM symbols. Meanwhile, only one DL synchronization exists within the beam sweep block.

[0142] To perform beam sweeping, the NR node performs beam subsetting between each sweep block. Enable the beam sweep block. Either a single beam or multiple beams are selected. They can be associated. Figure 17A shows a single sector consisting of four beams sweeping An example is shown in which each lock is enabled. In this example, a full set of 12 beams The data is swept within three sweep blocks. Figure 17B shows that one beam in each sector is swept within the sweep block. An example is shown in which each lock is enabled. In this example, a full set of 12 beams It is swept within four sweep blocks.

[0143] Sweep blocks can be used for self-contained subframes. Figure 18 shows The DL sweep block is separated by a guard period to allow Rx / Tx switching. An example of a self-contained sweep subframe structure is shown.

[0144] (DL-synchronous channel design within beam sweep block) As mentioned above, only a single DL synchronization channel (signal) exists for each beam sweep block. It is possible. However, the DL sweep subframe contains several sweep blocks. Therefore, the UE may detect multiple DL synchronization channels during the DL sweep subframe. Hence Those detected multiple DL synchronization channels are OFDM symbols or subframes. This can lead to ambiguity in timing. Therefore, timing offsets are compensated for, and DL synchronization chain This timing ambiguity caused by multi-beam transmission of the NEL (signal) needs to be resolved. This can be accomplished by the following:

[0145] If the DL synchronous channel carries both cell and beam IDs, the UE will carry the cell and beam IDs. The beam ID can be detected from the DL synchronization channel. Therefore, the UE can detect It is possible to identify the DL beam sweep block that should be swept, and the detected beam sweep block It is possible to calculate the timing offset from the C to the DL sweep subframe.

[0146] If the DL synchronization channel carries only the cell ID, the UE uses the beam ID as the beam reference. It can be detected from the signal. Therefore, the UE detects the DL beam sweep. The lock can be identified, and the DL sweep subframe can be detected from the beam sweep block. It is possible to calculate the timing offset up to a certain point. For example, the beam reference signal is While it may be linked to a cell ID, its frequency and / or time resources are different within the cell. This can differ with respect to the beam. This is because the UE uses a beam reference signal to uniquely determine the beam. This is one way to make identification possible.

[0147] A unique beam ID may be used for each beam within a cell, which is the beam of a given TRP. This allows multiple TRPs within the same TRP to be distinguished from each other. These beams are separated so that they can be distinguished from one another without ambiguity. It should have a unique beam ID. The design of a unique beam ID is important for beam measurement and This is necessary to enable in-beam handoff. In particular, in >6GHz deployments, cells It is expected that it will support hundreds of beams through TRP. Beam ID It is desirable to minimize the number of assumptions and lookups in the decision-making process. Therefore The beam can be identified in a two-step process outlined below, beam identification An alternative procedure is proposed.

[0148] Step 1: Determine the cell ID - The cell ID is identified in the first step, and It is proposed to minimize the number of times the cell ID is searched. This is because the cell ID is determined If a device is blacklisted, the UE will stop searching for beams within that cell. Therefore, this is an important step. For example, the cell ID is similar to that of LTE. This can be determined using S and SSS. However, this step is PSS and S Because SS occurs on the beam at different times within the subframe / frame, the frame Please note that we are unable to provide timing information.

[0149] Step 2: Determine the beam ID - The beam ID is determined after the cell ID knowledge has been acquired. It is acquired. One way to do this is to fix the third synchronization signal (TSS) within the frame. The goal is to provision in a fixed location. The TSS sequence is the beam ID (or beam The cell ID and resource used by the reference signal resource of the system are determined by the resource. It is possible. When the UE obtains the cell ID, it resolves the number of possible assumptions about the beam, and the beam The ID is detected. Then, the TSS and the location of the detected beam sweep block are used. Then, obtain the frame timing. The relative location of the detected beam sweep block is its This indicates the beam ID.

[0150] An exemplary embodiment is shown in Figure 19, in which the PSS and SSS are beam sweeping. There are three beams transmitted within different symbols in different forms. The TSS resource is It is allocated within the 0th symbol of the subframe. The TSS on each beam is illustrated. Therefore, different resources can be shared. A TSS (Transmission System) allows different beams to share the same resources. The possibility is not excluded, especially when the beams do not overlap spatially. UE is best PSS / S When SS is detected, it provides the best SINR or highest received signal strength based on the beam. ), and determine the cell ID. In this embodiment, the UE makes three assumptions regarding the time-location of the TSS. If a number is found, the process proceeds to decoding the TSS and selecting the one with the highest SINR.

[0151] Furthermore, regarding the aforementioned scheme, the beam reference signal is linked to the cell ID and beam ID. It is proposed that they be attached. Similarly, all transmissions on the beam, cell ID and beam It will be linked to both MIDs. For example, PBCH, DCI, and PDSCH. Scrambling sequences used to scramble PHY channels such as The signal is generated using both the cell ID and the beam ID.

[0152] Figure 20 shows the DL beam sweep block sweeping four beams within the beam sweep subframe. To enable, illustrate the scenario. The sweep beam needs to be associated with a beam ID. Therefore, this beam ID does not use a beam reference signal to transport the beam ID, P It can be combined with DL synchronous channel sequences such as SS / SSS. If the channel carries both cell and beam IDs, the UE will download the best beam. Detected from the synchronization signal. This allows the UE to identify the DL beam sweep block that should be detected. This is equivalent to doing so. Therefore, the UE uses DL sweep subframes from the detected sweep blocks. It is possible to understand the timing offset to the floor.

[0153] Aspects for initial access to the beamforming base are described in detail below. The DL synchronous channel for initial signal design within the R system is addressable. NR is LF-NR (i.e., below 6GHz) and HF-NR (i.e., below 6GHz) It supports both (exceeding) deployment. In LF-NR, a single, wider beam targets the range. It may be sufficient for the enclosure. However, in HF-NR, a single, wider beam is, It may not be sufficient for the target area. Therefore, multiple narrow beams are used to cover the target area. This is a preferred solution for improving [something]. Therefore, the NR system is a preferred solution for initial access. For signal transmission, single-beam-based (or single-sector) and multi-beam-based It can support both the (multi-sector) approach and the initial access signal. This includes the periodic channels, namely PSS / SSS and PBCH channels. Furthermore, DL is also included. It can be treated as a unit of beam sweep time for broadcasting a channel. The DL initial access beam sweep block and the NR-PBCH for initial access are Defined: Each sweep block may consist of at least one CP-OFDM symbol. Multiple blocks can form a beam sweep burst. Here, sweep burst The length of a burst refers to the number of beam sweep blocks within that burst. For example, beam sweep blocks If the burst length is equal to M, then there are N sweep blocks within the burst. In Figure 21A, DL synchronous channel and DL sweep burst and block implementation for NR-PBCH An example is described. DL beam sweep bursts are transmitted periodically with a periodic time T. This is possible. During this period T, different services such as URLLC, mMTC, or eMBB services may be used. In conjunction with the application, or with different frequency bands (or frequency ranges) and numerology Consequently, it may fluctuate.

[0154] NR-PSS is primarily used for detecting symbol timing and / or subcarrier spacing. It can be used for the following: NR-SSS derives the subframe index and the symbol / NR-SSS can be used to derive subframe indices. Identification is done using partial cell ID NID(2) and symbols as subframe counters / indexes. It carries both Nloc. UE is DL sweep subframe and several sweep blocks. Because it includes a buck, multiple DL synchronization channels can be detected during a DL sweep burst. Therefore, Those detected multiple DL synchronization channels are CP-OFDM symbol / subframe Timing can be made ambiguous. Therefore, in this specification, timing offset is used for DL ​​synchronization. Compensation to resolve this timing ambiguity caused by multibeam transmission of channels (signals). It is recognized that this may be necessary. In one embodiment, the DL synchronization channel is the cell ID When transporting the index / counter from a symbol to a subframe, the UE will: Detect the cell ID and synchronize the index / counter from the symbol to the subframe via DL synchronization. It is possible to fetch from only the channel. Therefore, the UE is the DL that should be detected. The beam sweep block can be identified, and detected from the counter value from NR-SSS. Calculate the timing offset from the beam sweep block to the DL sweep subframe. It is possible for a cell to possess multiple TRPs, in which case different TRPs from the same cell may be generated. The Tx-TRP transmits the same cell ID via NR-PSS and NR-SSS. obtain.

[0155] In addition, periodic beam sweep bursts for DL ​​synchronization and NR-PBCH are used in NR-PBCH It can be applied within a stem. For example, different NR cells can have different sweep burst lengths. The burst length can be set according to the frequency band (or frequency range) or numerology. It can fluctuate. PBCH is for the initial access block, the CP-OFDM symbol is If so, NR-PSS / NR-SSS may have the same OFDM symbol or a different O They can coexist within FDM symbols. In some cases, NR-PBCH is DL synchronous. It may have a channel BW different from the channel. NR-PSS, NR-SSS, and NR- The subcarrier spacing for PBCH can be the same or different.

[0156] In the exemplary beam sweep block, DL-synchronous channels (NR-PSS / SSS) and N The R-PBCH channel can be transported. The beam sweep block is a single CP-OFDM system. When associated with a m, DL sync channel (NR-PSS, NR-SSS) and NR -PBCH may need to coexist within OFDM symbols. In this case, DL synchronization channel Nell and NR-PBCH are frequency-division multiplexed (FDM) within OFDM symbols. In some cases, NR-SSS needs to be the demodulation reference signal for NR-PBCH. In this case, the REs of NR-SSS and NR-PBCH are interposed in the allocated RB. It can be left. In one embodiment, RE of NR-SSS and NR-PBCH Interleaved in the allocated RB for NR-SSS and NR-PBCH In another embodiment, NR-SSS and NR-PBCH are different resource blocks. Located in the , the resource locations for NR-PBCH and NR-SSS are in the frequency band / range. It can be dependent.

[0157] Referring now to Figure 21B, in particular Figures 21B(i) and 21B(ii), a single O An example of a sweep block with FDM symbols is presented. In this example, NR-SS S and NR-PBCH can be allocated to the same RB, but they are RE interleaved As shown in Figure 21B(iii), NR-SSS and NR-PBCH are, They can be located in different resource blocks. The locations of NR-SSS and NR-PBCH are as follows: This may depend on the wavenumber bandwidth / range. In some cases, the sweep block may involve multiple CP-OFDM systems. In the case of a compound of nvol, NR-PSSS, NR-SSS, and NR-PBCH are, They can be placed in different CP-OFDM symbols. Figures 21C(i)-(iii) show examples. The target DL sweep block is depicted. The NR-PBCH resource is the same as NR-SSS. It can be P-OFDM.

[0158] According to another aspect of this application, eNB in ​​a 5G network for PHY channel transmission It is adopted to support multiple major numerology systems. "Major numerology" refers to DL control and CP length, subcarrier interval, and symbol duration for the data channel, and possible As a characteristic, a set of PHY channel parameters defines several system information. Let me explain. For example, eNB signals DL sync signal and channel (PBCH). It uses a "common synchronization signal numerology" to transport system information. , in particular, may contain important system information. eNBs within the network use the same synchronized numerology. They are used, but they may support different major numerology systems.

[0159] In one embodiment, the primary numerology of the eNB may be unknown to the UE before it synchronizes with the cell. However, UE understands synchronous numerology. By doing so, UE understands The parameters of the period signal numerology are adopted, and the initial cell search is performed. UE then, Decodes available system information for the application.

[0160] Furthermore, the system information transmitted using synchronous numerology is the k-th support of the cell. It carries the numerologyConfig-k field for major numerology. numerologyConfig-k is, for example, the kth supported cpConfig shows the CP length and subcarrier spacing for primary numerology (k≧1). It may include two fields, such as -k and subcarrierSpacing-k. Table 8 shows an example configuration for numerologyConfig-k. [Table 8]

[0161] The parameters for synchronized numerology are set in numerologyConfig-sync. It is given as follows. numerologyConfig-sync is, for example, cpCon It includes two fields, fig-K and subcarrierSpacing-k. Table 9 describes an exemplary configuration for numerologyConfig-sync. do. [Table 9]

[0162] Figure 22 shows that different cells have different configurations for major numerology, as disclosed in Figures 3A-F. An exemplary 5G system is illustrated. The cells have a common synchronization signal numerology. In essence, eNB assigns one of the major numerology systems to UE. The assignment is by eNB. Synchronization occurs after connecting to a cell through the initial cell search. The eNB is used to make the assignment. Different criteria can be used. One criterion is RAN slicing configured for UE. This may include. Here, UEs with low latency requirements have the maximum carrier interval and shortest symbol Major numerology calculations with durations may be assigned. Another criterion includes network load. In this case, if the RAN has high resource utilization, the eNB will be newly synchronized. UE can be assigned to the major numerology with the longest symbolic duration. Another criterion is UE This can include location. For example, if RAN recognizes that the UE is in an indoor location, the shortest distance is... Numerology involving CP can be assigned.

[0163] The primary numerology assignment is expected to be carried over to the cell's system information. The use case is that primary numerology is used through different blocks of system information, or RRC. The diagram illustrates different deployments that are assigned via the connection. In the first use case, a single primary We will consider 5G eNBs with numerology. The eNB will use its synchronous numerology to connect with MIB. It transmits. Major numerology transmits all other system information and controls the data channel. It is adopted for the purpose of: The UE starts a cell lookup procedure and identifies the physical cell of the cell (P Obtain the CI and decode the MIB using previously known synchronous numerology. The MIB is numerologyConfig defines the primary numerology supported within the cell. This includes the field. UE here uses primary numerology to decode the rest of the system information. Then, establish an RRC connection.

[0164] The second use case involves multiple major numerology methods, as described above in Figures 7C-F, etc. We will consider 5G eNB. eNB will use synchronous numerology to reduce the amount of system information. It also transmits a portion of it. MIB transmitted via synchronized numerology is supported by primary numerology. It carries information about the art. This is, for example, the network that is supported by the main numerology. This may include mapping of network slices. Preconfigured to belong to a certain network slice. The UE that is created will derive its primary numerology from this MIB. Table 10 below shows the numerology ologyConfig-k provides illustrative mappings for different network slices. ru. [Table 10]

[0165] According to this application, it is assumed that a 5G system / cell may be able to select synchronization signal numerology. In particular, the system is the lowest among all available numerology systems that can be supported. Sampling rate, minimum subcarrier interval, or minimum latency constraint (minimum DL symbol) It requests the duration of the result. Figure 23 is an illustrative example of a decision tree for detecting the primary numerology. It is proof.

[0166] Furthermore, according to yet another embodiment, numerology used by DL synchronization within neighboring cells Information about this is provided by the eNB / cell to the UE to which they are connected. It is assumed that this may be included in the information. When a cell reselection is requested, the UE will select a neighboring cell. It can seamlessly synchronize with the LTE network. For example, if nearby cell information is sent to the LTE network, When provided within SIBs such as SIB-4 and SIB-5, the number of DL synchronizations of neighboring cells Information about esoteric arts is in a field called syncNumerologyConfig. This will be provided through these SIBs. This field is within the SIB. The IntraFreqNeighCellInfo field or Inter This may be part of the FreqNeighCellInfo field. See Table 12 below. 13 each contains syncNumerologyConfig information for neighboring cells. Table 11 shows exemplary configurations of SIB-4 and SIB-5 for transport. The field is syncNumerology. [Table 11]

[0167] In yet another embodiment, a device on a 5G network performs synchronization with neighboring cells. It is assumed that this includes non-transient memory, along with instructions stored on it, for the purpose of performing the operation. The device is operably coupled to non-transient memory and (i) provides a device connected to a first cell. (ii) Decode the system information block of the first cell, (iii) System information The block determines that it includes the synchronous numerology of neighboring cells, and (iv) the primary and secondary numerology of neighboring cells. (v) A processor that performs synchronization signal detection and is capable of executing instructions that synchronize with neighboring cells. Includes.

[0168] In one aspect of this embodiment, the processor further uses neighboring cells as a criterion for cell reselection. It is possible to determine whether the condition is met. In yet another aspect of this embodiment, the processor is Furthermore, a handover from the first cell to a neighboring cell can be initiated.

[0169] Table 12 below is a proposal for information regarding the numerology of neighboring cells of DL synchronization signal information elements. Exemplary SystemInformationBlockT using the provided solution The type5 (SIB-5) information elements are illustrated. [Table 12-1] [Table 12-2] [Table 12-3] [Table 12-4]

[0170] The field syncNumerology is the symbol CP length, subcarrier interval, and sufficient information to fully explain the symbol duration of the DL synchronization signal of neighboring cells Includes. Table 13 below contains information about the syncNumerology of neighboring cells. I will explain the possible methods. [Table 13]

[0171] In one embodiment, Figure 24 shows the acquisition of synchronization signal numerology for neighboring cells and the implementation of cell reselection. A decision tree for this purpose is illustrated. All steps are indicated by Arabic numerals. In particular, U E is connected and camped in cell A (Step 0). In Step 1, Based on the above description, the UE will begin decoding SIB4 and SIB5, and neighboring cells Get the information. In step 2, UE retrieves syncNumer for neighboring cell B. Query whether a ology was found. If not, the UE proceeds to step 2b. They will proceed and find alternative solutions.

[0172] If the answer to Step 2 is "yes", UE proceeds to Step 3. Here, U E uses the syncNumerology parameter to determine the PSS for cell B and SSS detection is performed, and synchronization is obtained. Measurement may also be performed.

[0173] Next, in step 4, UE checks whether cell B meets the criteria for cell re-selection. Determine if this applies. If not, the UE returns to the symbol timing sector-ID merge point. Then proceed to step 3. If applicable, UE will begin the handover to cell B. Then proceed to step 5. As a result, UE moves from cell A to cell B (step 6).

[0174] Now, looking at NR-PBCH, in one embodiment, NR-PBCH is NR-P Compared to SS and NR-SSS, it may have the same or different transmission duration characteristics. This periodic transmission The interval can depend on the frequency band (or frequency range). For example, NR-PBC The H transmission duration is T=10ms when below 6GHz, and T= It can be set to 5ms. In the DL beam sweep block, NR-PBCH is NR-PSS And it can coexist with or not coexist with NR-SSS. See Figure 25A-B, An exemplary NR-PBCH, not bundled with NR-PSS and NR-SSS, is depicted. It is copied. NR-PBCH has the same or different transmission period as DL beam sweep burst T. It is possible. This may depend on the frequency band / range. NR-PBCH is presented as an example. Furthermore, it can transport the following system information, which is not limited to this: • Show PRACH resources • Shows the PRACH feedback method. For example, although not limited to the following, UL beam sweeping methods Beam sweeping Based on the best selected Tx beam. • Transports instructions / counters from symbols to subframes. • When the instruction or counter from the symbol to the subframe is ~ • TRP ID: Cell ID and TRP ID are used by the UE to derive the beam ID. Can provide assistance Supported Numerology • Number of ports for demodulation criteria for paging channel / DL control channel • Paging signal broadcast burst cycle and resources • Instructions for multiple beam associations or single beam associations o A 1-bit indication to show a DL beam sweep block, for one or more beams Associated

[0175] In one embodiment, NR-PBCH is used for NR-SSS and / or NR-PBCH demodulation. It can be demodulated via a dedicated beam reference signal. The demodulation reference signal is NR-PBCH If available for demodulation, similarly, it can be served as a Beam Training Reference Standard (BTRS). It may be provided. The demodulation reference signal for NR-PBCH is SFBC or maximum Z=2 m Po It can be designed to support other transmission versatility, such as Z-port. This can be set as 1, 2, 4, or 8. UE can, for example, consider transmission diversity. If the number of supported ports for is unknown to the UE, some assumptions are made. It may be necessary to decode it precisely and compare it with several demodulated reference signals. For example, support If the number of ports is specified, the UE will perform blind testing to support transmission diversity. This can avoid the need for output and reduce detection complexity. It also supports transmission diversity. The ports specified for this purpose use different frequency bands, numerology, or, for example, URLLC, MT It can be configured based on different applications such as C or EMBB. In some cases, the demodulation criterion for NR-PBCH defaults as Quasi-Coexistence (QCL). It is converted. For example, when a beam sweep block has multiple CP-OFDM symbols. The demodulation reference signal for NR-PBCH is the same as or different from the NR-PBCH. It can be positioned as a symbol. Figure 26A-B shows the demodulated signal configuration for NR-PBCH. An example for calculation is shown. When NR-SSS is used for NR-PBCH demodulation. NR-SSS needs to be designed to support NR-PBCH transmission diversity. For example, NR-PBCH has a maximum Z=2 m If the port is supported, NR-SSS Alternatively, part of the NR-SSS signal is Z=2 m It can be transmitted over the port. These Z ports are the default as QCLs, and their port locations are known to the UE. Figure 26C shows an example where the NR-SSS supports two ports.

[0176] Now, let's look at the beam training RS (BTRS) used to demodulate NR-PBCH. In this specification, the number of assumption lookups in the process of determining the beam ID is minimized. It is recognized that this may be desirable. Therefore, in the exemplary embodiment, the cell and An initial access identification procedure that can identify the beam is presented as an example, and is limited to No, it includes the following steps.

[0177] Step 1: Determine the cell ID - the cell ID minimizes the number of beam ID searches. Therefore, it is identified in the first step. This means that once the cell ID is determined, the black If placed in a Christo, the UE may stop searching for beams within that cell, so This could be a necessary step. For example, the cell ID is similar to that of LTE, with PSS and S This can be determined using SS. However, this step assumes that PSS and SSS are sub Because the beams occur at different times within a frame, the frame timing is Please note that we are unable to provide this service.

[0178] Step 2: Determine the beam ID - The beam ID is determined after the cell ID knowledge is obtained. It can be obtained. One way to do this is to fret the Beam Training Reference Signal (BTRS). The goal is to provision to a fixed location within the beam. The BTRS sequence is beam I The cell ID and resource used by D (or the beam reference signal resource) Therefore, it can be determined. When the UE obtains the cell ID, it can solve the number of possible assumptions about the beam. It then detects the beam ID. RTBS ​​is also used for demodulating NR-PBCH. It can be used.

[0179] Examples are shown in Figures 27A-C, where the NR-PSS and NR-SSS are There are three beams, transmitted within different symbols in a beam-sweeping manner. BTRS Resources are allocated within the xth symbol of the subframe. Setting the xth symbol. This may depend on the frequency band (or frequency range) or numerology. BTRS on each beam As can be seen in Figures 27A-C, they may share different resources. However, different The possibility of BTRS where beams share the same resources is also a possibility, especially when beams spatially overlap. If not present, it will be understood that it will not be excluded. UE is the best NR-PSS / SSS. When detected, the cell ID is determined, and this cell ID is used to derive the beam ID. In the example, the UE has three assumptions regarding the time-place of the BTRS, and the BTRS deco We proceed to demodulation and investigate what maximizes SINR.

[0180] Furthermore, in some cases, the BTRS signal is linked to the cell ID. Similarly, beam The above transmission can also be linked to both cell ID and beam ID. For example, NR-PB Used to scramble PHY channels such as CH, DCI, and PDSCH. The scrambling sequence used is based on both the cell ID and beam ID. It is generated by [this method].

[0181] In one embodiment, the UE selects a beam / cell based on the TXSS signal intensity, and initially Perform periodic network access and / or BF pairing. Each beam i=1, ...,N, associated with beam ID, each beam ID is associated with multiple sequences It can be done. The number of sequences associated with the beam ID is shown as J. The association of beam IDs with their corresponding beam sequences is determined in advance by the system. It can be defined as follows. For example, a beam sequence is an M-sequence with different shifts. By employing Kens or other (semi)orthogonal sequences, the UE can determine the beam ID and symbol. By simultaneously detecting subframe timings, it is possible to distinguish between beams i=1,...,N. This can be made possible. Each beam i=1,···,N has its own unique sequence It has a lance. Therefore, the UE sets up a J×N correlator and performs timing detection and beam ID Detection can be performed. Because BT-RS transmission is based on known periodicity, each bee The delay profiles for i=1,···,N are used along with the accumulation of each beam correlation output. Examples of BT-RS beam IDs and associated beam sequences can be found. This is shown in Figure 28. Specifically, there are N=3 beams, and each beam ID is 1 It is set as 2 and 3. For each beam ID, it is associated with the J=2 sequence. Therefore, when the UE performs timing and frequency synchronization during the initial access phase, J × N hypothetical numbers are detected for N beams. In this embodiment, each beam ID is , associated with the J=2 sequence, and each associated sequence is at a different time or It is transmitted at subframe intervals. Therefore, it is associated with the beam ID. These beam sequences can be used to distinguish frame timings. In Figure 28, each beam ID is associated with two sequences, and each beam sequence This is repeated by five subframes. In this approach, frame timing They can be distinguished.

[0182] UE assumes that the RX beamforming gain is equal in all directions, and the reception of BT-RS Based on the signal strength, determine the cell / sector beam to access. Since the ID is associated with a unique sequence, the UE is associated with the beam ID. It can be decoded from the beam sequence. In fact, the beam sequence is BT- The RS is selected based on the received signal strength. The UE performs an initial beam search procedure. Implement this and find the best beam for camping. Symbols and subframes in UE The timing, beam ID detection, and decoding functions are illustrated in Figure 29.

[0183] In another embodiment, the NR-node / TRP has its BT-RS and beam-formed PBCH is transmitted. Each beam of the PBCH is transmitted in the same way as the corresponding BT-FS. It should be formed. The BCH is the ID (beam ID) that is carried on the preceding BT-RS. Alternatively, it would serve the purpose of matching cell / TRP / RAN slice IDs. PBCH The content may include cell or TRP or RAN slice common PBCH content. The common part of the PBCH is broadened, following the beam-swept beam-specific BCH content. It can be cast. The content may include a beam ID. The beam ID is a ro It may have a flat structure using locally unique beam IDs within the area (Cell I (Does not transport D and TRP ID and / or RAN slice ID).

[0184] The content may also include a hierarchical structure. The hierarchical structure is represented by the cell ID / TRP ID (applicable). (If possible) / RAN slice ID (if applicable) / Beam ID. Also, see Figure 3. As illustrated in 0, it includes nested beams with more than one target range size. It can be seen. Here, the coarser the beam, the more the ratio increases with the refined antenna weight vector. It has a relatively wider target range and a high-gain narrow beam. In this case, two sizes of targets If range beams exist, one is indicated as a Type 1 beam and the other as a Type 2 beam. It will be shown as a beam. A Type 1 beam will include one or more Type 2 beams. It is a wider beam. The beam ID is the cell ID (and / or TRP ID and / Alternatively, it could be RAN slice + Level 1 beam ID + Level 2 beam ID.

[0185] When multiple beams are broadcast simultaneously, each beam is its own beam It has an ID. Type 1 beams are "essential" (or "primary" or "most important"). ) System information (e.g., LTE MIB, SIB1, and SIB2 NR equivalents) While Type 2 beams can be used for broadcasting, depending on demand, sys System information, for example, system information that is not essential for system access, for example, It can be used for the delivery of service-specific system information. PBCH setup for initial access. There are two options for the calculation, the first option is that PBCH will transmit according to demand. The second option is that the PBCH is paired with each beam transmission. It is.

[0186] (PBCH with each beam transmission) In another embodiment, during initial access, the PBCH constantly performs DL Tx beam sweeping. The DL BT-RS of each Tx beam in is then conducted. Thus, the UE is DL The system successfully detects active BT-RS (and corresponding beams) and decodes the beam ID. Then, the UE can begin decoding the corresponding beamformed PBCH. Before decoding the PBCH, the UE can access any beamforming feeds for the NR node. Back or Tx beam sweep / training will not be performed. UE Pro for this method The Seeja is illustrated exemplified in Figure 31. Figure 32 shows the BT-RS within the frame structure. Let me explain the location of PBCH.

[0187] In this option, the UE will not receive a beam acquisition ACK from the NR node until it receives a beam acquisition ACK from the PB. There will likely be no need to decode CH. The beam ID feedback resource is NR. It is reserved by the stem and known to the UE. In addition, multiple UEs are affected by the same beam. Or if the same ID is detected, a conflict may occur. However, U E is generally located in a different geometric location and will not receive the same beam, therefore it will compete. The probability is low. In addition, NR nodes absorb uplink propagation due to synchronization. The feedback mechanism obtains the proposed CAZAC sequence in the following equation. It can be used.

[0188]

number

[0189] In the formula, Q is the sequence length, and the root u of the CAZAC sequence is the beam ID. It can be set as a function of α, where α is a cyclic shift.

[0190] (NR-SS periodicity) According to further aspects of this invention, the periodicity of the DL synchronization signal is supported by various factors within the cell. It is anticipated that this may depend on 5G applications. For example, 5G applications This allows the use of different synchronization channel periodics. In one use case, three Consider cells that support different 5G services. Each service will be supported by a different subcarrier. The intervals can be, for example, Δf, 2Δf, and 4Δf. Therefore, DL synchronization for each service Loadcast periodicity will differ. For example, in apps with subcarrier spacing Δf. The application can have q ms DL synchronous channel periodicity. Alternatively, Applications with a subcarrier spacing of 2Δf can have a q / 2ms periodicity. It is possible. As an alternative, applications with a subcarrier spacing of 4Δf have a period of q / 4ms. It can have properties. This is shown, for example, in Figure 33.

[0191] In one embodiment, the DL synchronization procedure in the UE is a variety of DL synchronization broadcasts. It is blindly detected using the periodicity of the stash. Specifically, in the PSS detection stage, the UE is The step involves relating the received signal to Q possible PSS sequences. Q is the maximum number of PSS sequences that can be supported. UE also supports various PSS sequences. The cross-correlation results are stored in various storage buffers according to the broadcast periodicity. A step can be performed. The UE can also select the strongest peak from the storage buffer. Then, The corresponding root sequence u

number

[0192] In a further embodiment, during the SSS detection stage, the UE receives the signal and p possible The UE also performs a step to relate the SSS sequences to each other. The cross-correlation results are stored in various storage buffers according to loadcast periodicity. A peak can be implemented. Next, the UE selects the strongest peak and responds from there.

number

number

number

number

number

[0193] According to this application, any of the systems, methods, and processes described herein or All of these are computer executable instructions, for example, on a computer-readable storage medium. It can be embodied in the form of program code stored in a computer, and its instructions are sent to a computer, server. B, M2M terminal devices, M2M gateway devices, transit devices, etc. When performed by [the specified entity], the systems, methods, and processes described herein are implemented. And / or you should understand that this will be implemented. Specifically, the steps described above, Either the operation or the function is implemented in the form of such computer executable instructions. To obtain. Computer-readable storage media can store information in any way or technique. This includes volatile and non-volatile removable and non-removable media implemented in the technique. Such computer-readable storage media do not contain signals. While not limited to, the removable storage media include RAM, ROM, EEPROM, and flats. Shrink memory or other memory technologies, CD-ROMs, Digital Multipurpose Discs (DVDs) or other optical disc storage devices, magnetic cassettes, magnetic tapes, magnetic disk storage devices or Other magnetic storage devices, or can be used to store desired information, and can be computer-controlled. Examples include any other physical medium that can be accessed by the data provider.

[0194] According to yet another aspect of this application, computer-readable or executable instructions are written. A non-transient computer-readable or executable storage medium for memory is disclosed. The medium consists of multiple callfs according to Figures 7A / B, 14, 23-24, 29, and 31. The law may include one or more computer executable instructions as disclosed above. Computer executable instructions are stored in memory, as disclosed in Figures 3C and 3F above. , executed by a processor, including nodes such as base stations and end-user equipment. It can be adopted within a device, for example, as shown in Figures 3B and 3E. (i) perform cell search in the 5G network, and (ii) the primary synchronization signal of the cell. (iii) detect the secondary synchronization signal of the cell, (iv) synchronize with the cell, and synchronize numerology Use this to execute instructions to decode the cell's physical broadcast channel. It is configured as follows: Here, the subcarrier spacing coefficient is the detected primary synchronization signal or detected It is obtained from one of the second synchronization signals.

[0195] The UE is also configured to perform the configuration of the initial access signal in the 5G network. It is possible. Instructions executed by the processor include (i) downlink initial access signals. It monitors the transmission of downlink sweep subframes, including beam sweep blocks that carry them. (ii) Detect the downlink initial access signal that carries the synchronization channel, (iii) Based on the synchronization channel, the identification of the beam sweep block associated with the downlink is determined. This includes determining.

[0196] In another aspect of this invention, a UE on the first cell may wish to move to another cell. Here, the UE (i) decodes the system information block of the first cell, and (ii) (iii) Determine the system information block, including the synchronous numerology of the neighboring cell, and the primary of the neighboring cell. (iv) Perform the step of synchronizing with neighboring cells by detecting the secondary synchronization signal and performing the secondary synchronization signal detection and (iv) performing the step of synchronizing with neighboring cells. It is composed of the following.

[0197] In another respect, for example, a base station as shown in Figure 3B-3F is (i) the master of a cell. (ii) transmit information blocks to nodes, network load, node location, for the node Based on the network slicing configuration and the criteria selected from combinations thereof It is configured to execute commands that assign the primary numerology to the nodes.

[0198] The system and methods were described in terms of what are currently considered to be specific aspects. However, this application is not limited to the aspects disclosed. The spirit and scope of the claims include It is intended to cover various modifications and similar sequences, and its scope is to encompass all such The broadest possible interpretation should be given to encompass such modifications and similar structures. This includes any and all aspects of the following claims.

Claims

1. A device on a 5G network, wherein the device is Non-transient memory, wherein the non-transient memory is initially in the 5G network. Non-transient memory, including instructions stored thereon for performing the configuration of access signals, 、 A processor operably coupled to the aforementioned non-transient memory and Equipped with, The aforementioned processor, By monitoring transmission at the downlink sweep subframe boundary, including beam sweep blocks The beam sweep block has a physical broadcast channel and a downlink To carry the initial access signal, To detect the downlink initial access signal that carries the synchronization signal, Based on the synchronization signal, the B that is associated with the downlink initial access signal To determine the identification of the sweep block and A device capable of executing commands to perform a specific action.

2. The processor includes the detected beam sweep block and the downlink sweep subf Further configured to execute instructions that calculate the timing offset between the Rhehm boundary and the Rhehm boundary. The apparatus according to claim 1.

3. The processor further executes instructions to compensate for the timing offset. The apparatus according to claim 2, configured as described above.

4. The command to be determined above identifies one or more of the cell ID and beam ID. The apparatus according to claim 1, including the action of

5. The downlink access signal further includes a beam reference signal, as described in claim 4. Place.

6. The apparatus according to claim 1, wherein the beam sweep block is part of a beam sweep burst. 。

7. The beam sweep block extends to one or more OFDM symbols, as described in claim 6. Place.

8. The apparatus according to claim 7, wherein the beam sweep block includes one or more beams.

9. The synchronization signal includes primary and / or secondary synchronization signals, each of which is a symbol timing Detecting the sub-carrier interval, deriving the subframe index To do, derive symbols for subframe indices, the physical blow The methods employed to obtain a cast channel, or a combination thereof. The apparatus according to claim 7, having its own sequence.

10. The device is selected from a smartphone, tablet, and laptop, according to the claim. The apparatus described in 1.

11. A device on a 5G network, wherein the device is Non-transient memory, wherein the non-transient memory is initially in the 5G network. Non-transient memory, including instructions stored thereon for performing the configuration of access signals, 、 A processor operably coupled to the aforementioned non-transient memory and Equipped with, The aforementioned processor, To perform a cell search in the aforementioned 5G network, To detect the primary synchronization signal of the aforementioned cell, Identifying the secondary synchronization signal of the aforementioned cell, To synchronize with the aforementioned cell, Decode the physical broadcast channel of the cell using synchronous numerology. and It is possible to execute commands that perform the following actions: The subcarrier spacing coefficient is the detected primary synchronization signal or the detected second synchronization signal. A device that acquires signals from one of the period signals.

12. The aforementioned detection step is, The detected primary synchronization signal can be used as the primary synchronization signal. Interrelationship with synchronization sequences, Based on the aforementioned interrelated steps, cell identification is obtained, The subcarrier spacing coefficient is derived from the cell identification obtained. The apparatus according to claim 11, including the following:

13. The aforementioned identification step is, Several possible secondary synchronization signals used for the identified secondary synchronization signal Interrelationship with synchronization sequences, The strongest P obtained in the step of relating the subcarrier spacing coefficients to each other Derivation from the mark The apparatus according to claim 11, including the following:

14. The processor may further provide the node with synchronization numerology prior to the synchronization step. The apparatus according to claim 11, which is capable of performing the same function.

15. The aforementioned synchronous numerology includes subcarrier intervals and cyclic prefix lengths for primary numerology. The apparatus according to claim 14, wherein the primary numerology is 1 or more.

16. The aforementioned primary numerology involves cyclic prefix length, subcarrier interval, and symbol duration. The apparatus according to claim 15, including intermediate physical layer channel parameters.

17. The periodicity of the primary or secondary synchronization signal is determined by the application supported by the cell. The apparatus according to claim 11, which depends on the process.

18. The aforementioned physical broadcast channel is a numerology, physical random access channel resource It carries system information to support block timing instructions and demodulation. The apparatus according to claim 11.

19. A method for configuring a downlink initial access signal on a 5G network, the said The law is, The monitoring of the periodic transmission of the downlink sweep subframe, The unit includes a beam sweep block that carries the downlink initial access signal. 、 To detect the downlink initial access signal that carries the synchronization channel, Timing off between the beam sweep block and the downlink sweep subframe Calculating a set, To compensate for the aforementioned timing offset and Methods that include...

20. Based on the compensated timing offset, the downlink initial access signal Claim 1 further includes determining the identification of the beam sweep block associated with The method described in 9.

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