Method and apparatus for wireless communication and memory
Patent Information
- Application Number
- BR112019008472
- Authority / Receiving Office
- BR · BR
- Patent Type
- Patents
- Current Assignee / Owner
- Publication Date
- 2026-08-25
Smart Images
Figure 00000051_0000 
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Abstract
Description
1 / 47 “METHOD AND APPARATUS FOR WIRELESS COMMUNICATION AND MEMORY CROSS-REFERENCE ON RELATED REQUEST
[0001] This Application claims priority to Non-Provisional Patent Application No. US 15 / 802,181, entitled DECOUPLING OF SYNCHRONIZATION RASTER AND CHANNEL RASTER, filed November 2, 2017, and to Provisional Application No. US 62 / 417,993, entitled DECOUPLING OF SYNCHRONIZATION RASTER AND CHANNEL RASTER, filed November 4, 2016, which are assigned to the assignee hereof and expressly incorporated herein by reference. BACKGROUND
[0002] Aspects of the present disclosure relate generally to communication systems and, more particularly, to the decoupling of a synchronization (sinc) channel raster and a channel raster in a wireless communication system.
[0003] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmission power). Examples of such multiple access technologies include code division multiple access (CDMA) systems, broadband CDMA systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, and multiple access systems. Petition 870240097116, dated 11 / 13 / 2024, page 6 / 121 2 / 47 by orthogonal frequency division (OFDMA), broadband single carrier frequency division multiple access systems and time division synchronous code division multiple access systems (TD-SCDMA).
[0004] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a municipal, national, regional, and even global level. For example, 5G NR (new radio) communications technology is expected to expand and support diverse use cases and applications compared to current mobile network generations. In one aspect, 5G communication technology includes enhanced mobile broadband that addresses human-centric use cases for accessing multimedia content, services, and data; ultra-reliable low-latency communications (URLLC) with requirements, especially in terms of latency and reliability; and massive machine-to-machine communications for a very large number of connected devices, typically transmitting a relatively low volume of delay-insensitive information.However, as the demand for mobile broadband access continues to increase, there remains a need for further enhancements in 5G and beyond communication technology. Ideally, these enhancements should be applicable to other multi-access technologies and to the telecommunications standards that employ these technologies.
[0005] During initial acquisition on a user device (UD) in long-term evolution (LTE) networks, the UD performs an initial scan of Petition 870240097116, dated 11 / 13 / 2024, page 7 / 121 3 / 47 Frequency. The UE searches for a central carrier frequency by scanning through configured frequency bands. For a given frequency band and channel raster (e.g., 100 kHz in LTE), the UE can detect a set of candidate central frequencies (e.g., by downlink power spectrum measurement or waveform detection) over which synchronization signals could be detected. However, such a frequency scanning procedure has some disadvantages in NR networks. For example, since NR is expected to be deployed in wide frequency bands, frequency scanning using channel rasters is not efficient. Additionally, there may be confusion between NR / LTE networks, since both NR and LTE employ OFDM-based waveforms in the downlink.Additionally, alien waveform confusion can occur when certain massive machine-type communication (mMTC) waveforms or on-demand signals exist in the frequency band.
[0006] Therefore, for NR communication technology and beyond (and with Evolution technology to In the long term (LTE communication technology), improvements in the decoupling of the synchronization channel raster and the channel raster may be desired. SUMMARY
[0007] The following is a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all aspects covered, and does not intend to identify key or critical elements. Petition 870240097116, dated 11 / 13 / 2024, page 8 / 121 4 / 47 of all aspects, nor to delineate the scope of any or all aspects. The sole purpose is to introduce some concepts of one or more aspects in a simplified way as a prelude to the more detailed description that is presented later.
[0008] According to one aspect, a method is described for decoupling a synchronization channel raster and a channel raster for wireless communications. The aspects described include determining, in a network entity, a synchronization channel raster corresponding to a set of frequencies. The aspects described further include transmitting, from the network entity, one or more synchronization signals and a physical broadcast channel (PBCH) at any frequency in the frequency set of the synchronization channel raster to at least one user equipment (UE).
[0009] In one aspect, an apparatus, such as a network entity, for decoupling a synchronization channel raster and a channel raster for wireless communications may include a transceiver, a memory, and at least one memory-coupled processor configured to determine, in the network entity, a synchronization channel raster corresponding to a set of frequencies. The described aspects additionally transmit, from the network entity, one or more synchronization signals and a PBCH at any frequency of the synchronization channel raster frequency set to at least one UE.
[0010] In one aspect, a computer-readable medium is described that can store computer-executable code for decoupling a channel raster from Petition 870240097116, dated 11 / 13 / 2024, p. 9 / 121 5 / 47 Synchronization and a channel raster for wireless communications. The aspects described include the code for determining, in a network entity, a synchronization channel raster corresponding to a set of frequencies. The aspects described further include the code for transmitting, from the network entity, one or more synchronization signals and a PBCH on any frequency of the synchronization channel raster frequency set to at least one UE.
[0011] In one aspect, an apparatus is described for decoupling a synchronization channel raster and a channel raster for wireless communications. The described aspects include means for determining, in a network entity, a synchronization channel raster corresponding to a set of frequencies. The described aspects further include means for transmitting, from the network entity, one or more synchronization signals and a PBCH at any frequency of the frequency set of the synchronization channel raster to at least one UE.
[0012] According to one aspect, a method for decoupling a synchronization channel raster and a channel raster for wireless communications. The described aspects include detecting, in a UE, one or more synchronization signals for time and frequency synchronization with a network entity and a physical cell identifier (ID) for each frequency of a synchronization channel raster. The described aspects further include retrieving, in the UE, a master information block (MIB) by decoding a PBCH transmitted from the entity. Petition 870240097116, dated 11 / 13 / 2024, p. 10 / 121 6 / 47 network. The aspects described additionally include searching, by the UE, for a central frequency based at least on the detection of one or more synchronization signals and the recovery of the MIB.
[0013] In one aspect, an apparatus, such as a UE, for decoupling a synchronization channel raster and a channel raster for wireless communications may include a transceiver, a memory, and at least one memory-coupled processor configured to detect, in a UE, one or more synchronization signals for time and frequency synchronization with a network entity and with a physical cell ID for each frequency of a synchronization channel raster. The described aspects further retrieve, in the UE, a MIB by decoding a PBCH transmitted from the network entity. The described aspects further search, by the UE, for a center frequency based at least on the detection of one or more synchronization signals and the retrieval of the MIB.
[0014] In one aspect, a computer-readable means is described that can store computer-executable code for decoupling a synchronization channel raster and a channel raster for wireless communications. The aspects described include code for detecting, in a UE, one or more synchronization signals for time and frequency synchronization with a network entity and a physical cell ID for each frequency of a synchronization channel raster. The aspects described further include code for retrieving, in the UE, a MIB by decoding a PBCH transmitted from the network entity. The aspects described include Petition 870240097116, dated 11 / 13 / 2024, p. 11 / 121 7 / 47 additionally the code to search, by the UE, for a central frequency based at least on the detection of one or more synchronization signals and the recovery of the MIB.
[0015] In one aspect, an apparatus is described for decoupling a synchronization channel raster and a channel raster for wireless communications. The described aspects include means for detecting, in a UE, one or more synchronization signals for time and frequency synchronization with a network entity and a physical cell ID for each frequency of a synchronization channel raster. The described aspects further include means for recovering, in the UE, a MIB by decoding a PBCH transmitted from the network entity. The described aspects further include means for searching, by the UE, for a central frequency based at least on the detection of one or more synchronization signals and the recovery of the MB.
[0016] According to one aspect, a method for decoupling a synchronization channel raster and a channel raster for wireless communications. The aspects described include determining, in a network entity, a synchronization channel raster corresponding to a set of frequencies. The aspects described further include transmitting, from the network entity, one or more synchronization signals and a PBCH at a frequency of the synchronization channel raster frequency set closest to a center frequency of a bandwidth for at least one UE.
[0017] In one aspect, a device, such as a network entity, for decoupling a synchronization channel raster and a communication channel raster. Petition 870240097116, dated 11 / 13 / 2024, p. 12 / 121 Wireless 8 / 47 may include a transceiver, a memory, and at least one memory-coupled processor configured to determine, on the network entity, a synchronization channel raster corresponding to a set of frequencies. The described aspects additionally transmit, from the network entity, one or more synchronization signals and a PBCH at a frequency of the synchronization channel raster frequency set closest to a center frequency of a bandwidth to at least one UE.
[0018] In one aspect, a computer-readable means is described that can store computer-executable code for decoupling a synchronization channel raster and a channel raster for wireless communications. The aspects described include the code for determining, in a network entity, a synchronization channel raster corresponding to a set of frequencies. The aspects described further include the code for transmitting, from the network entity, one or more synchronization signals and a PBCH at a frequency of the synchronization channel raster frequency set closest to a center frequency of a bandwidth for at least one UE.
[0019] In one aspect, an apparatus is described for decoupling a synchronization channel raster from a wireless communication channel raster. The described aspects include means for determining, in a network entity, a synchronization channel raster corresponding to a set of frequencies. The described aspects further include means for transmitting, from the network entity, one or more signals of Petition 870240097116, dated 11 / 13 / 2024, p. 13 / 121 9 / 47 synchronization and a PBCH at a frequency of the synchronization channel raster frequency set closest to a center frequency of a bandwidth for at least one UE.
[0020] For the purposes set forth above and related, the one or more aspects comprise the features described in full and, in particular, highlighted in the claims hereinafter. The following description and the accompanying drawings set forth certain illustrative features in detail of the one or more aspects. However, these features are indicative of only some of the various ways in which the principles of various aspects may be employed, and this description is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The disclosed aspects will be described hereinafter in this document in conjunction with the accompanying drawings, provided for illustrative purposes only and not to limit the disclosed aspects, wherein similar designations denote similar elements, and in which:
[0022] Figure 1 is a schematic diagram of an example of a wireless communication network that includes at least one base station that has a configuration component and at least one UE that has a synchronization component;
[0023] Figure 2A is a diagram that illustrates an example of a downlink (DL) subframe for a 5G / NR frame structure;
[0024] Figure 2B is a diagram illustrating an example of DL channels within the DL subframe for a Petition 870240097116, dated 11 / 13 / 2024, p. 14 / 121 10 / 47 frame structure 5G / NR;
[0025] Figure 2C is a diagram that illustrates an example of an uplink subframe (UL) for a 5G / NR frame structure;
[0026] Figure 2D is a diagram that illustrates an example of UL channels within the UL subframe, respectively, for a 5G / NR frame structure;
[0027] Figure 3 is a flowchart of an example of a method for decoupling a synchronization channel raster and a wireless communication channel raster into a network entity;
[0028] Figure 4 is a flowchart of an example of a method for decoupling a synchronization channel raster and a wireless communication channel raster in a UE;
[0029] Figure 5 is a flowchart of another example of a method for decoupling a synchronization channel raster and a wireless communication channel raster in a network entity;
[0030] Figure 6 is a schematic diagram of example UE components from Figure 1; and
[0031] Figure 7 is a schematic diagram of example components of the base station in Figure 1. DETAILED DESCRIPTION
[0032] The detailed description set forth below, together with the attached drawings, is intended to describe various configurations and is not intended to represent only the configurations in which the concepts described herein may be applied. The detailed description includes specific details with the Petition 870240097116, dated 11 / 13 / 2024, page 15 / 121 11 / 47 purpose of providing a complete understanding of various concepts. However, it will be apparent to those skilled in the art that these concepts can be practiced without these specific details. In some cases, well-known components are shown in block diagram form in order to avoid obscuring such concepts.
[0033] The present disclosure provides an exemplary method and apparatus for decoupling a synchronization channel raster and a channel raster for wireless communications. For example, during initial acquisition in an UE in LTE networks, the UE initially performs a frequency scan by searching for a central carrier frequency by scanning through the configured frequency bands. For a given channel raster and frequency band (e.g., 100 kHz in LTE), the UE can detect a set of central frequency candidates (e.g., by a downlink power spectrum measurement or waveform detection) over which synchronization signals can be detected. However, such a frequency scan procedure has some disadvantages in NR networks.For example, since NR is expected to be deployed in wide frequency bands, frequency scanning using channel rasters is not efficient. Additionally, confusion can exist between NR / LTE networks, as both NR and LTE employ OFDM-based waveforms in the downlink. Furthermore, alien waveform confusion can occur when some Massive Machine-type communication waveforms or some demand signals exist in the frequency band. Petition 870240097116, dated 11 / 13 / 2024, p. 16 / 121 12 / 47
[0034] The present disclosure introduces an efficient frequency scanning procedure by decoupling the channel raster and the synchronization channel raster. In one aspect, a 100 kHz channel raster indicates that the carrier frequency is a multiple of 100 kHz. Similarly, a 2 MHz synchronization trace indicates that the synchronization channel frequency is a multiple of 2 MHz. For example, in one aspect, the channel raster for a sub-6 GHz NR (Sub6) can be similar to the LTE channel raster (e.g., 100 kHz) to provide deployment flexibility. The synchronization channel raster is much less precise (e.g., higher in bandwidth) than the channel raster to reduce frequency scanning complexity and to achieve faster detection.In a deployment, the synchronization channel raster can be a multiple of the least common multiple of the channel raster and the reference resource (RB) block bandwidth in order to allow faster alignment of the synchronization channel raster with both the channel raster and the RB.
[0035] The present disclosure provides a method and an exemplary apparatus for decoupling a synchronization channel raster and a channel raster that may include determining, in a network entity, a synchronization channel raster corresponding to a set of frequencies, and transmitting, from the network entity, one or more synchronization signals and a PBCH at any frequency of the synchronization channel raster frequency set to at least one UE. The present disclosure provides another method and another apparatus for detecting, Petition 870240097116, dated 11 / 13 / 2024, p. 17 / 121 13 / 47 in a UE, one or more synchronization signals for time and frequency synchronization with a network entity and a physical cell identifier (ID) for each frequency of a synchronization channel raster, recover, in the UE, a MIB by decoding a PBCH transmitted from the network entity, and search, by the UE, for a center frequency based at least on the detection of the one or more synchronization signals and the recovery of the MIB. The present disclosure provides another method and another apparatus for determining, in a network entity, a synchronization channel raster corresponding to a set of frequencies, and transmitting, from the network entity, one or more synchronization signals and a PBCH at a frequency of the frequency set of the synchronization channel raster closest to a center frequency of a bandwidth for at least one.
[0036] The additional features of the present aspects are described in more detail below in relation to Figures 1 to 7.
[0037] It should be noted that the techniques described in this document can be used for various wireless communication networks such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other systems. The terms system and network are often used interchangeably. A CDMA system may deploy a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 encompasses the IS-2000, IS-95, and IS-856 standards. IS2000 0 and A versions are commonly referred to as CDMA2000 IX, IX, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1x EV-DO, High Rate Packet Data (HRPD), etc. UTRA includes Petition 870240097116, dated 11 / 13 / 2024, page 18 / 121 14 / 47 Wideband CDMA (WCDMA) and other CDMA variants. A TDMA system can deploy a radio technology such as Global System for Mobile Communications (GSM). An OFDMA system can deploy a radio technology such as Mobile Ultra Wideband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (WiFi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM™, etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunication System (UMTS). 3GPP Long Term Evolution (LTE) and LTE Advanced (LTE-A) are newer versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the 3rd Generation Partnership Project (3GPP). CDMA2000 and UMB are described in documents from an organization called the 3rd Generation Partnership Project 2 (3GPP2). The techniques described in this document can be used for the aforementioned system and radio technologies as well as other system and radio technologies, including cellular communications (e.g., LTE) over a shared radio frequency spectrum band.However, the description below illustrates an LTE / LTE-A system for example purposes, and LTE terminology is used throughout much of the description below, even though the techniques are applicable beyond LTE / LTE-A applications (e.g., to 5G networks or other next-generation communication systems).
[0038] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of elements discussed without departing from the scope of the disclosure. Several examples may be made. Petition 870240097116, dated 11 / 13 / 2024, page 19 / 121 15 / 47 Omit, replace, or add various procedures or components as appropriate. For example, the methods described may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, the features described in relation to some examples may be combined with other examples.
[0039] Referring to Figure 1, according to various aspects of the present disclosure, an example of a wireless communication network 100 that includes at least one UE 110 and at least one base station 105. The UE 110 may include a modem 140 that has a synchronization component 150 configured to perform frequency scanning by decoupling a synchronization channel raster 174 and a channel raster 176. Additionally, the wireless communication network 100 includes at least one base station 105 with a modem 160 that has a configuration component 170 configured to transmit one or more synchronization signals 178 and a PBCH 180.
[0040] In one aspect, base station 105 and / or configuration component 170 may include a determination component 172 configured to determine a synchronization channel raster 174 corresponding to a set of frequencies. For example, determination component 172 may determine the synchronization channel raster 174 based on at least a least common multiple (LCM) of a channel raster 176 and a reference feature block bandwidth (RB).
[0041] In one aspect, a PBCH 180 master information block (MIB) 182 includes a first bit portion that indicates a common control sub-band to carry. Petition 870240097116, dated 11 / 13 / 2024, page 20 / 121 16 / 47 Minimum System Information Block (MSIB) scheduling information. The common control sub-band may correspond to a common seek space of a physical downlink control channel (PDCCH). Additionally, the MSIB scheduling information may include at least one location information corresponding to a frequency from the synchronization channel raster frequency set 174 where one or more synchronization signals are transmitted, a numerology, and a bandwidth. In another example, the MIB includes a second bit portion indicating a location of a central frequency 184.
[0042] In another aspect, a first bit portion of a PBCH 180 MIB 182 indicates a central frequency location 184 of the bandwidth relative to a frequency location of the synchronization channel raster frequency set 174. For example, MIB 182 includes a common control subband for carrying MSIB scheduling information. The common control subband may be located symmetrically to the central frequency 184 of the bandwidth. The common control subband may correspond to a common PDCCH seek space. Additionally, MIB 182 may include a common control subband bandwidth and a common control subband numerology.
[0043] In another aspect, MIB 182 includes a common control sub-band for carrying MSIB scheduling information. For example, the common control sub-band can be located symmetrically at any frequency of the bandwidth. Additionally, a second Petition 870240097116, dated 11 / 13 / 2024, page 21 / 121 The 17 / 47 bit portion of MIB 182 indicates at least one of a common control subband location relative to a frequency location of the synchronization channel raster frequency set 174, a common control subband bandwidth, and a common control subband numerology. The common control subband may correspond to a common PDCCH search space.
[0044] In one aspect, base station 105 and / or configuration component 170 may transmit one or more synchronization signals 178 and a PBCH 180 on any frequency of the synchronization channel raster frequency set 174 to at least one UE 110.
[0045] In another aspect, base station 105 and / or configuration component 170 may transmit one or more synchronization signals 178 and a PBCH 180 on a frequency of the synchronization channel raster frequency set 174 closest to a center frequency 184 of a bandwidth for at least one UE 110.
[0046] In one aspect, the UE 110 and / or synchronization component 150 may include a detection component 152, which may be configured to detect one or more synchronization signals 178 for time and frequency synchronization with a network entity and a physical cell ID 154 for each frequency of a synchronization channel raster 174. For example, the synchronization channel raster corresponds to an MMC of a channel raster 176 and a reference bandwidth RB.
[0047] In one aspect, the UE 110 and / or synchronization component 150 may include a recovery component 156 configured to recover a MIB 182 by Petition 870240097116, dated 11 / 13 / 2024, page 22 / 121 18 / 47 decoding of a PBCH 180 transmitted from base station 105. For example, MIB 182 includes a first bit portion indicating a common control sub-band for carrying MSIB scheduling information. The common control sub-band corresponds to a common PDCCH seek space. Additionally, the MSIB scheduling information includes at least one location information corresponding to a frequency from the synchronization channel raster frequency set 174 where one or more synchronization signals are transmitted, a numerology, and a bandwidth. In one example, MIB 182 includes a second bit portion indicating a location of the center frequency 184.
[0048] In one aspect, the UE 110 and / or synchronization component 150 may include a search component 158, which may be configured to search for a central frequency 184 based on at least the detection of one or more synchronization signals 178 and the recovery of the MIB 182.
[0049] The wireless communication network 100 may include one or more base stations 105, one or more UEs 110, and a central network 115. The central network 115 may provide user authentication, access authorization, tracking, internet protocol (IP) connectivity, and other access, routing, or mobility functions. Base stations 105 may interconnect to the central network 115 via return links 120 (e.g., S1, etc.). Base stations 105 may perform radio configuration and scheduling for communication with UEs 110, or may operate under the control of a base station controller (not shown). In several examples, base stations 105 may communicate directly or Petition 870240097116, dated 11 / 13 / 2024, p. 23 / 121 19 / 47 indirectly (for example, through the central network 115), with each other along return links 125 (for example, XI, etc.), which may be wireless or wired communication links.
[0050] Base stations 105 can communicate wirelessly with UEs 110 through one or more base station antennas. Each base station 105 can provide communication coverage for a respective geographic coverage area 130. In some examples, base stations 105 may be called a transceiver base station, a radio base station, an access point, an access node, a radio transceiver, a NodeB, an eNodeB (eNB), a gNodeB (gNB), a home NodeB, a home eNodeB, a repeater, or some other appropriate terminology. The geographic coverage area 130 for a base station 105 can be divided into sectors or cells that constitute only a portion of the coverage area (not shown). The wireless communication network 100 may include base stations 105 of different types (e.g., macro base stations or small cell base stations, described below).Additionally, the plurality of base stations 105 can operate according to different technologies of a plurality of communication technologies (e.g., 5G (New Radio or NR), fourth generation (4G) / LTE, 3G, WiFi, Bluetooth, etc.), and thus, there may be overlapping geographic coverage areas 130 for different communication technologies.
[0051] In some examples, the 100 wireless communication network may be or include any combination of communication technologies, including a Petition 870240097116, dated 11 / 13 / 2024, p. 24 / 121 20 / 47 new radio technology (NR) or 5G, a Long Term Evolution (LTE) or LTE Advanced (LTE-A) or MuLTEfire technology, a Wi-Fi technology, a Bluetooth technology, or any other short- or long-band wireless communication technology. In LTE / LTE-A / MuLTEfire networks, the term evolved node B (eNB) can generally be used to describe base stations 105, while the term UE can generally be used to describe UEs 110. The wireless communication network 100 can be a heterogeneous technology in which different types of eNB coverage provide coverage for various geographic regions. For example, each eNB or base station 105 can provide communication coverage for a macro cell, for a small cell, or for other types of cells. The term cell is a 3GPP term that can be used to describe a base station, a carrier or component carrier associated with a base station, or a coverage area (e.g., sector, etc.).) of a carrier or base station, depending on the context.
[0052] A macro cell can generally cover a relatively large geographical area (e.g., several kilometers in radius) and can allow unrestricted access by UEs 110 with service subscriptions with the network provider.
[0053] A small cell may include a base station powered by relatively low transmission, as compared to a macro cell, which may operate in the same or different frequency bands (e.g., licensed, unlicensed, etc.) as macro cells. Small cells may include pico cells, femto cells, and micro cells according to various examples. Petition 870240097116, dated 11 / 13 / 2024, page 25 / 121 21 / 47 A picocell, for example, can cover a small geographic area and may allow unrestricted access by UEs 110 with service subscriptions with the network provider. A femtocell can also cover a small geographic area (e.g., a residence) and can provide restricted and / or unrestricted access by UEs 110 that have an association with the femtocell (e.g., in the case of restricted access, UEs 110 in a closed subscriber group (CSG) of base station 105, which may include UEs 110 for users in the residence and similar). A microcell can cover a larger geographic area than a picocell and a femtocell, but smaller than a macrocell. An eNB for a macrocell may be called a macroeNB. An eNB for a small cell may be called a small cell eNB, a picoeNB, a femtoeNB, or a home eNB.An eNB can support one or multiple cells (e.g., two, three, four, and similar components).
[0054] Communication networks that can accommodate some of the various examples revealed may be packet-based networks that operate according to a layered protocol stack, and the data in the user plane may be IP-based. A user plane protocol stack (e.g., Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC), MAC, etc.) may perform packet segmentation and reassembly to communicate over logical channels. For example, a MAC layer may perform handling and multiplexing of logical channels into transport channels. The MAC layer may also use Hybrid Automatic Request / Repeat (HARQ) to provide retransmission at the MAC layer to enhance the Petition 870240097116, dated 11 / 13 / 2024, page 26 / 121 22 / 47 link efficiency. In the control plane, the RRC protocol layer can provide establishment, configuration, and maintenance of an RRC connection between a UE 110 and the base station 105. The RRC protocol layer can also be used for core network support 115 of radio carriers for user plane data. In the physical layer (PHY), transport channels can be mapped to physical channels.
[0055] UEs 110 can be dispersed throughout the wireless communication network 100, and each UE 110 can be stationary or mobile. A UE 110 may also include or be referred to as a mobile station, subscriber unit, mobile unit, wireless unit, remote unit, mobile device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, telephone, user agent, mobile client, client, or other suitable terminology by those skilled in the art.A UE 110 can be a mobile phone, a smartphone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a portable device, a tablet computer, a laptop computer, a cordless phone, a smartwatch, a wireless local loop station (WLL), an entertainment device, a vehicle component, a customer premises equipment (CPE), or any other device capable of wireless network communication. Additionally, a UE 110 can be the type of device... Petition 870240097116, dated 11 / 13 / 2024, page 27 / 121 23 / 47 Internet of Things (IoT) and / or machine-to-machine (M2M) devices, for example, are a type of low-power, low-data-rate device (compared to a cordless phone, for example) that rarely communicates in some aspects with the wireless communication network 100 or other UEs. A UE 110 may be able to communicate with various types of base stations 105 and network equipment including macroeNBs, small-cell eNBs, macro gNBs, small-cell gNBs, relay base stations and the like.
[0056] The UE 110 can be configured to establish one or more wireless communication links 135 with one or more base stations 105. The wireless communication links 135 shown in the wireless communication network 100 can carry uplink transmissions from a UE 110 to a base station 105 or downlink (DL) transmissions from a base station 105 to a UE 110. Downlink transmissions can also be called forward link transmissions, while uplink transmissions can also be called reverse link transmissions. Each wireless communication link 135 can include one or more carriers, where each carrier can be a signal consisting of multiple subcarriers (e.g., waveform signals of different frequencies) modulated according to various radio technologies described above.Each modulated signal can be sent on a different subcarrier and can carry control information (e.g., reference signals, control channels, etc.), airborne information, user data, etc. In one aspect, 135 wireless communication links can transmit communications. Petition 870240097116, dated 11 / 13 / 2024, page 28 / 121 24 / 47 bidirectional with the use of frequency division duplexing (FDD) operation (e.g., using paired spectrum resources) or time division duplexing (TDD) (e.g., using unpaired spectrum resources). Frame structures can be defined for FDD (e.g., type 1 frame structure) and for TDD (e.g., type 2 frame structure). Furthermore, in some aspects, 135 wireless communication links can represent one or more broadcast channels.
[0057] In some aspects of the 100 wireless communication network, 105 base stations or 110 UEs may include multiple antennas to employ diversity and antenna schemes to enhance communication quality and reliability between 105 base stations and 110 UEs. Additionally or alternatively, 105 base stations or 110 UEs may employ multiple-input multiple-output (MIMO) techniques that can take advantage of multipath environments to transmit multiple spatial layers carrying the same or different encoded data.
[0058] The 100 wireless communication network can support multi-cell or carrier operation, a feature that can be called carrier aggregation (CA) or multi-carrier operation. A carrier can also be called a component carrier (CC), a layer, a channel, etc. The terms carrier, component carrier, cell, and channel can be used interchangeably in this document. A UE 110 can be configured with multiple downlink CCs and one or Petition 870240097116, dated 11 / 13 / 2024, page 29 / 121 25 / 47 plus uplink CCS for carrier aggregation. Carrier aggregation can be used with both FDD component carriers and TDD component carriers. 105 base stations and 110 UEs can use a spectrum bandwidth of up to Y MHz (e.g., Y = 5, 10, 15, or 20 MHz) per carrier allocated in a carrier aggregation of up to a total of Yx MHz (x = number of component carriers) used for transmission in each direction. Carriers may or may not be adjacent to each other. Carrier allocation can be asymmetrical with respect to DL and UL (e.g., more or fewer carriers can be allocated to DL than to UL). Component carriers can include a primary component carrier and one or more secondary component carriers. A primary component carrier can be called a primary cell (PCell), and a secondary component carrier can be called a secondary cell (SCell).
[0059] Wireless communication networks 100 may additionally include base stations 105 operating in accordance with Wi-Fi technology, for example, Wi-Fi access points, communicating with UEs 110 operating in accordance with Wi-Fi technology, for example, Wi-Fi stations (STAs) via communication links in an unlicensed frequency spectrum (e.g., 5 GHz). When communicating in an unlicensed frequency spectrum, STAs and APs may perform a clear channel assessment (CCA) or listen-before-talk (LBT) procedure before communication in order to determine if the channel is available.
[0060] Additionally, one or more of the 105 base stations and / or the 110 UEs may operate in accordance with Petition 870240097116, dated 11 / 13 / 2024, p. 30 / 121 26 / 47 a NR or 5G technology called millimeter wave (mmW or mmwave or MMW) technology. For example, mmW technology includes transmissions at mmW frequencies and / or near mmW frequencies. Extremely high frequency (EHF) is part of the radio frequency (RF) in the electromagnetic spectrum. EHF has a range from 30 GHz to 300 GHz and a wavelength between 1 millimeter and 10 millimeters. Radio waves in this band can be called millimeter waves. Near mmW can extend down to a frequency of 3 GHz with a wavelength of 100 millimeters. For example, the super high frequency (SHF) band extends between 3 GHz and 30 GHz, and can also be called centimeter wave. Communications using mmW and / or near mmW radio frequency bands have extremely high path loss and a short range. Similarly, base stations 105 and / or UEs 110 operating according to mmW technology can use beamforming in their transmissions to compensate for extremely high path loss and short range.
[0061] Figure 2A is a diagram 200 illustrating an example of a DL subframe within a 5G / NR frame structure. Figure 2B is a diagram 230 illustrating an example of channels within a DL subframe. Figure 2C is a diagram 250 illustrating an example of a UL subframe within a 5G / NR frame structure. Figure 2D is a diagram 280 illustrating an example of channels within a UL subframe. The 5G / NR frame structure can be FDD in which, for a particular set of subcarriers (carrier system bandwidth), the subframes within the subcarrier set are dedicated to DL or Petition 870240097116, dated 11 / 13 / 2024, p. 31 / 121 27 / 47 UL, or it can be TDD in which, for a set of subcarriers (carrier system bandwidth), the subframes within the subcarrier set are dedicated to both DL and UL. In the examples provided by Figures 2A, 2C, the 5G / NR frame structure is considered to be TDD, with subframe 4 a DL subframe and subframe 7 a UL subframe. Although subframe 4 is illustrated as providing only DL and subframe 7 is illustrated as providing only UL, any particular subframe can be divided into different subsets that provide both UL and DL. Note that the description below also applies to a 5G / NR frame structure that is FDD.
[0062] Other wireless communication technologies may have a frame structure and / or different channels. A frame (10 ms) can be divided into 10 equally sized subframes (1 ms). Each subframe can include one or more time partitions. Each partition can include up to 14 symbols, depending on the partition configuration. For partition configuration 0, each partition can include 14 symbols, and for partition configuration 1, each partition can include 7 symbols. The number of partitions within a subframe is based on the partition configuration and numerology. For partition configuration 0, different numerologies from 0 to 5 allow 1, 2, 4, 8, 16, and 32 partitions, respectively, per subframe. For partition configuration 1, different numerologies from 0 to 2 allow 2, 4, and 8 partitions, respectively, per subframe. Subcarrier spacing and symbol duration / length are a function of numerology.The subcarrier spacing can be equal to 2μ * 15 kHz, where μ is the numerology from 0 to 5. A. Petition 870240097116, dated 11 / 13 / 2024, page 32 / 121 28 / 47 symbol duration / length is inversely related to subcarrier spacing. Figures 2A, 2C provide an example of partition configuration 1 with 7 symbols per partition and numerology 0 with 2 partitions per subframe. The subcarrier spacing is 15 kHz and the symbol duration is approximately 66.7 ps.
[0063] A feature grid can be used to represent the frame structure. Each time partition includes a feature block (RB) (also called physical RBs (PRBs)) that spans 12 consecutive subcarriers. The feature grid is divided into multiple feature elements (REs). The number of bits carried by each RE depends on the modulation scheme.
[0064] As illustrated in Figure 2A, some of the REs carry reference signals (RS) (pilots) for the UE (indicated as R). The RS may include demodulation RS (DM-RS) and channel state information reference signals (CSI-RS) for channel estimation in the UE. The RS may also include beam measurement RS (BRS), beam refinement RS (BRRS), and phase tracking RS (PTRS).
[0065] Figure 2B illustrates an example of multiple channels within a frame. The Physical Control Format Indicator (PCFICH) channel is within symbol 0 of partition 0, and carries a Control Format Indicator (CFI) that indicates whether the Physical Downlink Control Channel (PDCCH) occupies 1, 2, or 3 symbols (Figure 2B illustrates a PDCCH occupying 3 symbols). The PDCCH carries Downlink Control Information (DCI) within one or more Control Channel Elements (CCEs), where each CCE includes Petition 870240097116, dated 11 / 13 / 2024, page 33 / 12129 / 47 nine RE groups (REGs), each REG includes four consecutive REs in an OFDM symbol. A UE can be configured with a UE-specific enhanced PDCCH (ePDCCH) that also carries DCI. The ePDCCH can have 2, 4, or RB pairs (Figure 2B shows two RB pairs, where each subset includes one RB pair). The Physical Hybrid Automatic Repeat Request (HARQ) indicator channel (PHICH) is also within symbol 0 of partition 0 and carries the HARQ indicator (HI) which indicates HARQ acknowledgment (ACK) / negative ACK feedback (NACK) based on the Physical Uplink Shared Channel (PUSCH). The Primary Synchronization Channel (PSCH) can be within symbol 6 of partition 0 within subframes 0 and 5 of a frame. The PSCH carries a primary synchronization signal (PSS) that is used by a UE 104 to determine the subframe / symbol time and a physical layer identity.The secondary synchronization channel (SSCH) can be located within symbol 5 of partition 0 within subframes 0 and 5 of a frame. The SSCH carries a secondary synchronization signal (SSS) that is used by a UE to determine a physical layer cell identity group number and a radio frame time. Based on the physical layer identity and the physical layer cell identity group number, the UE can determine a physical cell identifier (PCI). Based on the PCI, the UE can determine the locations of the aforementioned DL-RS. The physical broadcast channel (PBCH), which carries a master information block (MIB), can be logically grouped with the PSCH and SSCH to form a synchronization signal (SS) / PBCH block. The MIB provides several RBs in the width of. Petition 870240097116, dated 11 / 13 / 2024, page 34 / 121 30 / 47 bandwidth DL system, a PHICH configuration, and a system frame number (SFN). The physical downlink shared channel (PDSCH) carries user data, broadcast system information not transmitted through the PBCH such as system information blocks (SIBs) and paging messages.
[0066] As illustrated in Figure 2C, some of the REs carry demodulation reference signals (DM-RS) for channel estimation at the base station. The UE can additionally transmit resonance reference signals (SRS) on the last symbol of a subframe. The SRS can have a comb structure, and a UE can transmit SRS on one of the combs. The SRS can be used by a base station for channel quality estimation to enable frequency-dependent scheduling in the UL.
[0067] Figure 2D illustrates an example of multiple channels within a UL subframe of a frame. A physical random access channel (PRACH) may be within one or more subframes within a frame based on the PRACH configuration. The PRACH may include six consecutive RB pairs within a subframe. The PRACH allows the UE to perform initial system access and achieve UL synchronization. A physical uplink control channel (PUCCH) may be located at the edges of the UL system bandwidth. The PUCCH carries uplink control (UCI) information such as scheduling requests, a channel quality indicator (CQI), a pre-encoding matrix indicator (PMI), a classification indicator (RI), and HARQ ACK / NACK feedback. The PUCCH carries data and may be additionally used for Petition 870240097116, dated 11 / 13 / 2024, page 35 / 121 31 / 47 Load a buffer state report (BSR), a power amplitude report (PHR), and / or UCI.
[0068] Referring to Figure 3, for example, a wireless communication method 300 at base station 105 according to the aspects described above for decoupling a synchronization channel raster 174 and a channel raster 176 in a wireless communication system includes one or more of the actions defined in this document.
[0069] In block 302, method 300 can determine, on a network entity, a synchronization channel raster corresponding to a set of frequencies. For example, base station 105 and / or configuration component 170 can execute determination component 172 to determine a synchronization channel raster 174 corresponding to a set of frequencies. Determination component 172 can determine synchronization channel raster 174 based on at least one MMC of channel raster 176 and a reference bandwidth RB. In one example, determination component 172 can configure channel raster 176 for 100 kHz, with a reference bandwidth RB of 180 kHz. Determination component 172 can determine synchronization channel raster 174 as an MMC multiple of channel raster 176 and reference bandwidth RB. For example, Synchronization channel raster = K * (MMC(Channel raster, Reference RB bandwidth) = K * 900 = 1.8 MHz when Channel raster = 100 kHz, and Reference RB bandwidth = 180 kHz, and where the value of a factor of Petition 870240097116, dated 11 / 13 / 2024, page 36 / 121 The 32 / 47 K scale is set to a value of 2.
[0070] In block 304, method 300 may transmit, from the network entity, one or more synchronization signals and a PBCH at any frequency in the synchronization channel raster frequency set to at least one UE. For example, base station 105 and / or configuration component 170 may transmit one or more synchronization signals 178 and a PBCH 180 at any frequency in the synchronization channel raster frequency set 174 to at least one UE 110. In one example, base station 105 and / or configuration component 170 may transmit one or more synchronization signals 178 (e.g., primary and secondary synchronization signals) and a PBCH 180 on any multiple of a synchronization channel raster frequency 174 (e.g., 1.8 MHz, 3.6 MHz, etc.) for one or more UEs, e.g., UE 110.
[0071] In one aspect, base station 105 and / or configuration component 170 can transmit synchronization signals 178 and PBCH 180 at any synchronization channel raster frequency (i.e., any multiple of synchronization channel raster 174). Additionally, several bits (e.g., X number of bits) of a MIB 182 can be used to indicate common control sub-band (e.g., common PDCCH seek space) that carries an MSIB schedule, e.g., the location relative to the synchronization channel raster frequency where synchronization signals 178 are transmitted, numerology (e.g., subcarrier spacing, symbol times, FFT sizes, etc.) and bandwidth. Additionally, if UE 110 needs the center frequency Petition 870240097116, dated 11 / 13 / 2024, page 37 / 121 33 / 47 184 of the system bandwidth, then the Y bits of the MSIB can be used to indicate the location of center frequency 184.
[0072] Referring to Figure 4, for example, a wireless communication method 400 in UE 110 according to the aspects described above for decoupling a synchronization channel 174 raster and a channel 176 raster in a wireless communication system includes one or more of the actions defined in this document.
[0073] In block 402, method 400 can detect, in a UE, one or more synchronization signals for time and frequency synchronization with a network entity and a physical cell ID for each frequency of a synchronization channel raster. For example, UE 110 and / or synchronization component 150 can execute detection component 152 to detect one or more synchronization signals 178 for time and frequency synchronization with a base station 105 and a physical cell ID 154 for each frequency of a synchronization channel raster 174. In one example, physical cell ID 154 can have a range of 0 to 503 and can be used to scramble the data so that UE 110 can separate information from different transmitters. A physical cell ID 154 can determine the sequence of primary and secondary synchronization signals transmitted from base station 105.
[0074] In block 404, method 400 can retrieve a MIB in the UE by decoding a PBCH transmitted from the network entity. For example, UE 110 and / or synchronization component 150 can execute retrieval component 156 to retrieve a MIB 182 by Petition 870240097116, dated 11 / 13 / 2024, page 38 / 121 34 / 47 decoding of a PBCH 180 transmitted from base station 105.
[0075] In block 406, method 400 can search, by the UE, for a center frequency based at least on the detection of one or more synchronization signals and the recovery of the MIB. For example, UE 110 and / or synchronization component 150 can execute search component 158 to search for a center frequency 184 based at least on the detection of one or more synchronization signals 178 and the recovery of the MIB 182.
[0076] Referring to Figure 5, for example, a wireless communication method 500 at base station 105 according to the aspects described above for decoupling a synchronization channel 174 raster and a channel 176 raster in a wireless communication system includes one or more of the actions defined in this document.
[0077] In block 502, method 300 can determine, on a network entity, a synchronization channel raster corresponding to a set of frequencies. For example, base station 105 and / or configuration component 170 can execute determination component 172 to determine a synchronization channel raster 174 corresponding to a set of frequencies. For example, determination component 172 can configure a channel raster 176 for 100 kHz with a reference bandwidth RB of 180 kHz. Determination component 172 can determine synchronization channel raster 174 as a multiple of the LMC of channel raster 176 and reference bandwidth RB. For example, Synchronization channel raster = K * (MMC(Raster of Petition 870240097116, dated 11 / 13 / 2024, page 39 / 121 35 / 47 channel, reference RB bandwidth) = K * 900 = 1.8 MHz when channel raster = 100 kHz, and reference RB bandwidth = 180 kHz, and where the value of a scaling factor K is set to a value of 2.
[0078] In block 504, method 500 may transmit, from the network entity, one or more synchronization signals and a PBCH on a frequency from the synchronization channel raster frequency set closest to a center frequency of a bandwidth to at least one UE. For example, base station 105 and / or configuration component 170 may transmit one or more synchronization signals 178 and a PBCH 180 on a frequency from the synchronization channel raster frequency set 174 closest to a center frequency 184 of a bandwidth to at least one UE 110.
[0079] In one aspect, the synchronization signals 178 and PBCH 180 can be transmitted at the synchronization channel raster frequency closest to the center frequency 184. Several bits (e.g., X number of bits) in MIB 182 can be used to indicate the location of center frequency 184 relative to the synchronization channel raster frequency where the synchronization signals 178 are transmitted. For example, if the synchronization channel raster 174 is 1.8 MHz, five bits can be used to signal the location of center frequency 184 in steps of the channel raster 176, for example, of 100 kHz. Additionally, the common control sub-band (e.g., common PDCCH seek space) that carries the Petition 870240097116, dated 11 / 13 / 2024, page 40 / 121 36 / 47 MSIB scheduling is symmetrical around the center frequency 184, and the bandwidth and numerology of common control sub-bands (e.g., common PDCCH seek space) can be signaled in MIB 182.
[0080] In one aspect, the synchronization signals 178 and PBCH 180 can be transmitted on the synchronization channel raster 174 closest to the center frequency 184. Several bits (e.g., X number of bits) in MIB 182 can be used to indicate the location of center frequency 184 relative to the synchronization channel raster frequency where the synchronization signals 178 are transmitted. For example, if the synchronization channel raster 174 is 1.8 MHz, five bits can be used to signal the location of center frequency 184 in steps of the channel raster 176 (e.g., 100 kHz).Additionally, the common control sub-band (e.g., PDCCH common seek space) that carries the MSIB schedule can be presented anywhere in the system bandwidth, and a number Y of bits in MIB 182 can be used to indicate the common control sub-band (e.g., PDCCH seek space) that carries the MSIB schedule location relative to the synchronization channel raster frequency where synchronization signals 178 are transmitted, numerology, and bandwidth.
[0081] Additionally, the synchronization channel raster 174 can be defined as a function of the channel raster 176. The channel raster 176 is for placement and granularity of signaling from the center frequency 184 of the synchronization channel raster deviation to the frequency Petition 870240097116, dated 11 / 13 / 2024, page 41 / 121 37 / 47 central 184. The 176 channel raster is considered to be 100 kHz (similar to that signaled for LTE). The 174 synchronization channel raster can be signaled by the 176 channel raster steps. If the 174 synchronization channel raster is 1.8 MHz and the 176 channel raster is 100 kHz, 5 bits are needed for the synchronization tracking offset to the 184 central frequency, and the 178 synchronization signals are transmitted at the synchronization channel raster point closest to the 184 central frequency to minimize the synchronization offset signaling to the 184 central frequency.
[0082] Shielding around the 174-channel sync raster may be necessary to minimize interference. In one example, the shielding can be scaled to neighboring RBs used for data or control channels. That is, data can only be mapped to the upper half of the edge data RB. In another example, the shielding can be scaled to edge sync tones of the edge sync RBs. For example, 7 RBs (2.52 MHz) may be required and 72 intermediate tones can be used for sync. The number of remaining tones on neighboring data RBs fractional in the tone spacing of such RBs. In one aspect, a 1.8 MHz 174-channel sync raster can support 15 / 30 kHz subcarrier spacing (SCC) for data / control channels. That is, 60 kHz RB = 720 kHz. If the 176 channel raster is 100 kHz, MMC (720, 100) = 3.6 MHz, which does not provide sufficient resources for synchronization.
[0083] In an additional aspect, only 15 kHz and 30 kHz subcarrier spacing (SCS) can be Petition 870240097116, dated 11 / 13 / 2024, page 42 / 121 38 / 47 supported for data / control channels. However, symbols that do not carry synchronization channels may not have this feature. Additionally, time-division multiplexing (TDM) can be used if the 174-channel synchronization raster is employed, specifically when the synchronization bandwidth is at the edge of the channel bandwidth, as blind detection for the other synchronization subbands may be necessary after the primary synchronization signal (PSS) is detected.
[0084] In a further aspect, for intra-frequency downlink measurement, UE 110 may consider that the frequency location of the synchronization signal (or signals) between neighboring cells and UE 110 may also consider that neighboring cells may have minimum bandwidth measurement signals or synchronization bandwidth. Additionally, UE 110 may consider that neighboring cells may have minimum bandwidth measurement signals or synchronization bandwidth, or base station 105 may signal the measurement signal bandwidth of neighboring inter-frequency cells.
[0085] Referring to Figure 6, an example of a UE 110 deployment may include a variety of components, some of which have been described above, but include components such as one or more processors 612 and memory 616 and transceiver 602 communicating via one or more buses 644, which may operate together as modem 140 and synchronization component 150. Additionally, the one or more processors 612, the modem 140, the memory 616, the transceiver 602, and front end Petition 870240097116, dated 11 / 13 / 2024, p. 43 / 121 39 / 47 688 radio frequency (RF) and one or more 665 antennas can be configured to support voice and / or data calls (simultaneously or not) in one or more radio access technologies. In some respects, the 140 modem may be the same as or similar to the 140 modem (Figure 1).
[0086] In one aspect, the one or more 612 processors may include a 140 modem that uses one or more modem processors. The various functions related to the synchronization component 150 may be included in the 140 modem and / or 612 processors and, in one aspect, may be performed by a single processor, while, in other aspects, different functions may be performed by a combination of two or more different processors. For example, in one aspect, the one or more 612 processors may include any one or any combination of a modem processor or baseband processor or digital signal processor or transmission processor or receiver processor or transceiver processor associated with the 602 transceiver. In other aspects, some of the features of the one or more 612 processors and / or 140 modem associated with the synchronization component 150 may be performed by the 602 transceiver.
[0087] Furthermore, memory 616 may be configured to store data used in this document and / or local versions of applications 675 or of synchronization component 150 and / or one or more of its subcomponents that are executed by at least one processor 612. Memory 616 may include any type of computer-readable media useful for at least one processor 612, such as random access memory (RAM), Petition 870240097116, dated 11 / 13 / 2024, page 44 / 121 40 / 47 read-only memory (ROM), tapes, magnetic disks, optical disks, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, memory 616 may be a computer-readable non-transient storage medium that stores one or more computer-executable codes that define synchronization component 150 and / or one or more of its subcomponents, and / or data associated therewith, when UE 110 is operating at least one processor 612 to execute synchronization component 150 and / or one or more of its subcomponents.
[0088] Transceiver 602 may include at least one receiver 606 and at least one transmitter 608. Receiver 606 may include hardware, firmware, and / or processor-executable software code for receiving data, wherein the code comprises instructions and is stored in memory (e.g., computer-readable medium). For example, receiver 606 may be an RF receiver. In one aspect, receiver 606 may receive signals transmitted by at least one base station 105. Additionally, receiver 606 may process such received signals and may also obtain measurements of the signals, such as, but not limited to, Ec / Io, SNR, RSRP, RSSI, etc. Transmitter 608 may include hardware, firmware, and / or processor-executable software code for transmitting data, wherein the code comprises instructions and is stored in memory (e.g., computer-readable medium). A suitable example of a 608 transmitter might include, but is not limited to, an RF transmitter.
[0089] Furthermore, in one respect, EU 110 can Petition 870240097116, dated 11 / 13 / 2024, p. 45 / 121 41 / 47 include the RF front end 688, which can operate in communication with one or more antennas 665 and with the transceiver 602 to receive and transmit radio transmissions, for example, wireless communications transmitted by at least one base station 105 or wireless transmissions transmitted by UE 110. The RF front end 688 can be coupled to one or more antennas 665 and can include one or more low-noise amplifiers (LNAs) 690, one or more switches 692, one or more power amplifiers (PAs) 698 and one or more filters 696 to transmit and receive RF signals.
[0090] In one aspect, the LNA 690 can amplify a received signal to a desired output level. In one aspect, each LNA 690 can have minimum and maximum gain values. In one aspect, the RF front end 688 can use one or more switches 692 to select a particular LNA 690 and a specified gain value based on a desired gain value for a particular application.
[0091] Additionally, for example, one or more PA(s) 698 can be used by the RF front end 688 to amplify a signal to an RF output at a desired output power level. In one aspect, each PA 698 can have minimum and maximum gain values. In one aspect, the RF front end 688 can use one or more switches 692 to select a particular PA 698 and a corresponding specified gain value based on a desired gain value for a particular application.
[0092] Furthermore, for example, one or more 696 filters can be used by the RF front end 688 to filter a received signal to obtain an RF signal. Petition 870240097116, dated 11 / 13 / 2024, page 46 / 121 42 / 47 input. Similarly, in one aspect, for example, a respective filter 696 may be used to filter an output of a respective PA 698 to produce an output signal for transmission. In one aspect, each filter 696 may be coupled to a specified LNA 690 and / or PA 698. In one aspect, the RF front end 688 may use one or more switches 692 to select a transmit and receive path using a specified filter 696, LNA 690 and / or PA 698, based on a configuration as specified by the transceiver 602 and / or processor 612.
[0093] As such, transceiver 602 can be configured to transmit and receive wireless signals via one or more antennas 665 through the RF front end 688. In one aspect, transceiver 602 can be tuned to operate at specified frequencies so that UE 110 can communicate with, for example, one or more base stations 65 or one or more cells associated with one or more base stations 65. In one aspect, for example, modem 140 can configure transceiver 602 to operate at a specified frequency and power level based on UE configuration of UE 110 and the communication protocol used by modem 140.
[0094] In one aspect, the 140 modem can be a multi-mode multiband modem, which can process digital data and communicate with the 602 transceiver so that digital data is sent and received using the 602 transceiver. In another aspect, the 140 modem can be multiband and be configured to support multiple frequency bands for a specific communications protocol. Petition 870240097116, dated 11 / 13 / 2024, page 47 / 121 43 / 47 In one aspect, the 140 modem can be multimode and configured to support multiple operating networks and multiple communication protocols. In another aspect, the 140 modem can control one or more components of the UE 110 (e.g., RF front end 688, transceiver 602) to enable the transmission and / or reception of signals from the network based on a specified modem configuration. In another aspect, the modem configuration can be based on the modem mode and the frequency band in use. In another aspect, the modem configuration can be based on UE configuration information associated with the UE 110 as provided by the network during cell selection and / or cell re-selection.
[0095] Referring to Figure 7, an example of a base station deployment 105 may include a variety of components, some of which have been described above, but include components such as one or more processors 712, a memory 716 and a transceiver 702 communicating via one or more buses 744, which may operate in conjunction with the modem 160 and the configuration component 170 to enable one or more of the functions described in this document.
[0096] The transceiver 702, the receiver 706, the transmitter 708, one or more processors 712, the memory 716, the applications 775, the buses 744, the RF front end 788, the LNAs 790, the switches 792, the filters 796, the PAs 798 and one or more antennas 765 may be the same as or similar to the corresponding components of UE 110, as described above, but configured or otherwise programmed for base station operations in Petition 870240097116, dated 11 / 13 / 2024, page 48 / 121 44 / 47 opposition to EU operations.
[0097] The detailed description set forth above, together with the accompanying drawings, describes examples and does not represent only the examples that can be implemented or that are within the scope of the claims. The term "example," when used in this description, means that it serves as an example, a case, or an illustration, and is not preferential or advantageous over other examples. The detailed description includes specific details for the purpose of providing an understanding of the techniques described. However, these techniques can be practiced without these specific details. In some cases, well-known structures and apparatus are shown in block diagram form in order to avoid obscuring the concepts of the examples described.
[0098] Information and signals can be represented using a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description above can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, executable computer code or instructions stored on a computer-readable medium, or a combination thereof.
[0099] The various illustrative blocks and components described in conjunction with the disclosure in this document may be deployed or implemented with a specially programmed device, such as, but not limited to, a processor, a digital signal processor. Petition 870240097116, dated 11 / 13 / 2024, page 49 / 121 A special programmed processor (DSP), an ASIC, an FPGA or other programmable logic devices, a discrete gate or transistor logic, a discrete hardware component, or any combination thereof designed to perform the functions described herein. A special programmed processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. A special programmed processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
[0100] The functions described herein may be implemented in hardware, processor-executed software, firmware, or any combination thereof. If implemented in processor-executed software, the functions may be stored or transmitted as one or more instructions or code on a non-transient, computer-readable medium. Other examples and implementations are within the scope and spirit of the disclosure and appended claims. For example, due to the nature of the software, the functions described above may be implemented using specially programmed processor-executed software, hardware, firmware, hard cabling, or combinations thereof. The resources that implement functions may also be physically located in multiple locations, including being distributed so that portions of functions are implemented in different locations. Petition 870240097116, dated 11 / 13 / 2024, page 50 / 121 46 / 47 physical locations. Furthermore, as used in this document, including in the claims, or as used in a list of items prefaced by at least one of indicates a disjunctive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (that is, A and B and C).
[0101] Computer-readable media includes both storage media and communication media, which includes any means that facilitates the transfer of a computer program from one place to another. Storage media may be any available medium that can be accessed by a general-purpose or special-purpose computer. By way of example, and without limitation, computer-readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to load or store desired program code media in the form of instruction or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Furthermore, any connection is properly termed a computer-readable medium.For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included. Petition 870240097116, dated 11 / 13 / 2024, page 51 / 121 47 / 47 in the definition of media. Magnetic disk and optical disk, as used in this document, include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray type disc where magnetic disks usually reproduce data magnetically, while optical discs reproduce data optically with lasers. Combinations of the aforementioned are also included within the scope of computer-readable media.
[0102] The preliminary description of the revelation is provided to enable a person skilled in the technique to make or use the revelation. Various modifications to the revelation will be readily apparent to those skilled in the technique, and the common principles set forth herein may be applied to other variations without departing from the spirit and scope of the revelation. Additionally, although elements of the described aspects and / or modalities may be described or claimed in the singular, the plural is contemplated unless the limitation to the singular is explicitly stated. Furthermore, all or a portion of any aspect and / or modality may be used with all or a portion of any other aspect and / or modality unless otherwise stated.Therefore, disclosure should not be limited to the examples and projects described in this document; it should encompass a broader scope consistent with the innovative principles and resources disclosed herein. Petition 870240097116, dated 11 / 13 / 2024, page 52 / 121
Claims
1 / 3 CLAIMS 1. Wireless communication method, characterized in that it comprises: determining (302), in a network entity, a synchronization channel raster corresponding to a set of frequencies;and transmit (304), from the network entity, one or more synchronization signals and a physical broadcast channel, PBCH, at a frequency of the synchronization channel raster frequency set to at least one user equipment, UE, wherein a master information block, MIB, of the PBCH includes a first bit portion indicating a common control subband for carrying minimum system information block scheduling information, MSIB, wherein the common control subband corresponds to a common search space downlink control physical channel, PDCCH, wherein the MSIB scheduling information includes at least one location information corresponding to a frequency of the synchronization channel raster frequency set where the one or more synchronization signals are transmitted, a numerology and a bandwidth.; 2. Method according to claim 1, characterized in that determining the synchronization channel raster further comprises determining the synchronization channel raster based on at least one least common multiple, LCM, of a channel raster and a reference feature block bandwidth, RB.
3. Method according to claim 2, Petition 870240097116, dated 11 / 13 / 2024, pp. 103 / 121 2 / 3 characterized in that the MIB includes a second bit portion indicating a center frequency location.
4. Computer-readable memory, characterized in that it comprises instructions stored therein, the instructions being executable by a processor to perform the steps of the method as defined in any one of claims 1 to 3.
5. Wireless communication apparatus, characterized in that it comprises: means for determining (172), in a network entity (105), a synchronization channel raster corresponding to a set of frequencies;and means for transmitting (708), from the network entity, one or more synchronization signals and a physical broadcast channel, PBCH, at a frequency of the synchronization channel raster frequency set to at least one user equipment, UE, wherein a master information block, MIB, includes a first bit portion indicating a common control sub-band for carrying minimum system information block scheduling information, MSIB, wherein the common control sub-band corresponds to a common search space downlink control physical channel, PDCCH, wherein the MSIB scheduling information includes at least one location information corresponding to a frequency of the synchronization channel raster frequency set where one or more synchronization signals are transmitted, a numerology and a bandwidth.; 6. Apparatus, according to claim 5, Petition 870240097116, dated 11 / 13 / 2024, pp. 104 / 121 3 / 3 characterized in that the means for determining the synchronization channel raster are further adapted to determine the synchronization channel raster based on at least a least common multiple, LCM, of a channel raster and a reference feature block bandwidth, RB.
7. Device according to claim 5, characterized in that the MIB includes a second bit portion indicating the location of a central frequency. Petition 870240097116, dated 11 / 13 / 2024, pp. 105 / 121