Methods and apparatus for synchronization signal block transmission in mobile communications
By incorporating PSS, SSS, and PBCH repetitions in SSB transmission, the method addresses EIRP reduction and enhances energy efficiency and access reliability in mobile communications with a larger number of beams.
Patent Information
- Application Number
- PCT/CN2024/141767
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-02-02
- Filing Date
- 2024-12-24
- Publication Date
- 2025-08-07
AI Technical Summary
Current synchronization signal block (SSB) designs in mobile communications with a larger number of beams are inadequate, leading to potential EIRP reduction and negatively affecting energy efficiency and access reliability, particularly in non-terrestrial networks like satellite communications.
Implementing a method where the SSB includes a plurality of primary synchronization signal (PSS) repetitions, which can be repeated in sequential or gap-included symbols, along with secondary synchronization signal (SSS) and physical broadcast channel (PBCH) repetitions, to enhance initial access and maintain network operations.
The proposed method improves energy efficiency and access reliability by optimizing SSB transmission, ensuring effective network connectivity and coverage in networks with a larger number of beams.
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Figure CN2024141767_07082025_PF_FP_ABST
Abstract
Description
METHODS AND APPARATUS FOR SYNCHRONIZATION SIGNAL BLOCK TRANSMISSION IN MOBILE COMMUNICATIONSCROSS REFERENCE TO RELATED PATENT APPLICATION (S)
[0001] The present disclosure is part of a non-provisional application claiming the priority benefits of PCT Application No. PCT / CN2024 / 075428, filed on 2 February 2024, the content of which herein being incorporated by reference in their entireties.TECHNICAL FIELD
[0002] The present disclosure is generally related to mobile communications and, more particularly, to synchronization signal block transmission with respect to apparatus in mobile communications.BACKGROUND
[0003] Unless otherwise indicated herein, approaches described in this section are not prior art to the claims listed below and are not admitted as prior art by inclusion in this section.
[0004] In Long-Term Evolution (LTE) or New Radio (NR) mobile communications, some networks, each involving a larger number of beams, are introduced to deliver network services, such as non-terrestrial network (NTN) providing network services via space (e.g., satellite) or air (e.g., airborne platform) . Regarding these networks, the deployment of wide and narrow beams may be essential to facilitate optimized downlink (DL) and uplink (UL) transmission scheduling. In some situations, initial access to the network with a larger number of beams may be essential while the network employs thousands of narrow beams to provide precise coverage, supplemented by hundreds of wide beams for broader area coverage.
[0005] However, in the network (e.g., an NTN) with a larger number of beams, current synchronization signal block (SSB) designs for initial access are inadequate, as at least of the following requirements are not considered: SSB repetition when DL power is limited for wide beams or legislation, Lmax is extended with more beams, and different SSB pattern for initial access and connected mode in the network with a larger number of beams.
[0006] In addition, the differentiation between wide and narrow beams may introduce some issues related to the allocation of equivalent isotropically radiated power (EIRP) . For example, when the EIRP is equally divided between wide and narrow beams-for instance, 50%allocated to each beam type-it may result in a potential EIRP reduction for each beam type. This scenario may cause a loss of approximately -3 dB compared to scenarios without EIRP splitting. Such a loss may negatively affect the overall system performance, including energy efficiency and access reliability.
[0007] Accordingly, fulfilling the above requirements for initial access to network with a larger number of beams, as well as increasing energy efficiency and access reliability while maintaining normal network operations, have become important issues in the newly developed wireless communication network.SUMMARY
[0008] The following summary is illustrative only and is not intended to be limiting in any way. That is, the following summary is provided to introduce concepts, highlights, benefits and advantages of the novel and non-obvious techniques described herein. Select implementations are further described below in the detailed description. Thus, the following summary is not intended to identify essential features of the claimed subject matter, nor is it intended for use in determining the scope of the claimed subject matter.
[0009] An objective of the present disclosure is to propose solutions or schemes that address the aforementioned issues pertaining to synchronization signal block (SSB) transmission with respect to apparatus in mobile communications.
[0010] In one aspect, a method may involve an apparatus transmitting an SSB to a user equipment (UE) . The SSB may include a plurality of primary synchronization signal (PSS) repetitions.
[0011] In one aspect, a method may involve an apparatus receiving an SSB from a network node. The SSB may include a plurality of PSS repetitions.
[0012] In one aspect, an apparatus may comprise a transceiver which, during operation, wirelessly communicates with a UE. The apparatus may also comprise a processor communicatively coupled to the transceiver. The processor, during operation, may perform operations comprising transmitting an SSB to the UE. The SSB may include a plurality of PSS repetitions.
[0013] It is noteworthy that, although description provided herein may be in the context of certain radio access technologies, networks and network topologies such as Long-Term Evolution (LTE) , LTE-Advanced, LTE-Advanced Pro, 5th Generation (5G) , New Radio (NR) , Internet-of-Things (IoT) and Narrow Band Internet of Things (NB-IoT) , Industrial Internet of Things (IIoT) , and 6th Generation (6G) , the proposed concepts, schemes and any variation (s) / derivative (s) thereof may be implemented in, for and by other types of radio access technologies, networks and network topologies. Thus, the scope of the present disclosure is not limited to the examples described herein.BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of the present disclosure. The drawings illustrate implementations of the disclosure and, together with the description, serve to explain the principles of the disclosure. It is appreciable that the drawings are not necessarily in scale as some components may be shown to be out of proportion than the size in actual implementation in order to clearly illustrate the concept of the present disclosure.
[0015] FIG. 1 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0016] FIG. 2 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0017] FIG. 3 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0018] FIG. 4 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0019] FIG. 5 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0020] FIG. 6 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0021] FIG. 7 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0022] FIG. 8 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0023] FIG. 9 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0024] FIG. 10 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0025] FIG. 11 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0026] FIG. 12 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0027] FIG. 13 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0028] FIG. 14 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0029] FIG. 15 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0030] FIG. 16 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0031] FIG. 17 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0032] FIG. 18 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0033] FIG. 19 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0034] FIG. 20 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0035] FIG. 21 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0036] FIG. 22 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0037] FIG. 23 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0038] FIG. 24 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0039] FIG. 25 is a diagram depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0040] FIGS. 26A and 26B are diagrams depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0041] FIGS. 27A and 27B are diagrams depicting an example scenario under schemes in accordance with implementations of the present disclosure.
[0042] FIG. 28 is a block diagram of an example communication system in accordance with an implementation of the present disclosure.
[0043] FIG. 29 is a flowchart of an example process in accordance with an implementation of the present disclosure.
[0044] FIG. 30 is a flowchart of an example process in accordance with an implementation of the present disclosure. DETAILED DESCRIPTION OF PREFERRED IMPLEMENTATIONS
[0045] Detailed embodiments and implementations of the claimed subject matters are disclosed herein. However, it shall be understood that the disclosed embodiments and implementations are merely illustrative of the claimed subject matters which may be embodied in various forms. The present disclosure may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments and implementations set forth herein. Rather, these exemplary embodiments and implementations are provided so that description of the present disclosure is thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art. In the description below, details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations. Overview
[0046] Implementations in accordance with the present disclosure relate to various techniques, methods, schemes and / or solutions pertaining to synchronization signal block (SSB) transmission with respect to apparatus in mobile communications. According to the present disclosure, a number of possible solutions may be implemented separately or jointly. That is, although these possible solutions may be described below separately, two or more of these possible solutions may be implemented in one combination or another.
[0047] Regarding the present disclosure, a network node may transmit an SSB to a user equipment (UE) . The SSB may include a plurality of primary synchronization signal (PSS) repetitions. Then, the UE may receive the SSB including the PSS repetitions. Accordingly, introducing the SSB including the PSS repetitions may fulfill the requirements for initial access to network with a larger number of beams, while also increasing energy efficiency and access reliability while maintaining normal network operations.
[0048] FIG. 1 illustrates an example scenario 100 under schemes in accordance with implementations of the present disclosure. Scenario 100 involves at least one network node and a UE, which may be a part of a wireless communication network (e.g., an LTE network, a 5G / NR network, an IoT network or a 6G network) . Scenario 100 illustrates the current network framework. The UE may connect to the network side. The network side may comprise one or more network nodes. It should be noted that in the figure of the present application, the network node may be exemplified as a satellite. However, this is for illustrative purposes and not intended to be limiting.
[0049] In some embodiments, the network node may transmit an SSB (i.e., synchronization signal (SS) / physical broadcast channel (PBCH) block) to the UE. The SSB may include a plurality of PSS repetitions. More specifically, the SSB may be predefined, and each of the PSS repetitions may have the same information. Then, the UE may receive the SSB including the PSS repetitions and process the SSB for further operations.
[0050] In some implementations, a number of the PSS repetitions of the SSB may include 2, 4, 8, 16 or 32. The PSS repetitions may be repeated in: (1) subsequential symbols, (2) symbols with one or more gaps therebetween, or (3) the subsequential symbols and the symbols with one or more gaps therebetween. More specifically, (1) the PSS repetitions may be carried in the subsequential symbols, (2) the PSS repetitions may be carried in the symbols while there is (are) gap (s) between these symbols, or (3) the PSS repetitions may be carried in both the subsequential symbols and the symbols with gap (s) in between.
[0051] In some implementations, the SSB may further include one or more secondary synchronization signal (SSS) repetitions. The SSS repetitions may be repeated in: (1) subsequential symbols, (2) symbols with one or more gaps therebetween, or (3) the subsequential symbols and the symbols with one or more gaps therebetween. More specifically, (1) the SSS repetitions may be carried in the subsequential symbols, (2) the SSS repetitions may be carried in the symbols while there is (are) gap (s) between these symbols, or (3) the SSS repetitions may be carried in both the subsequential symbols and the symbols with gap (s) in between.
[0052] In some implementations, the SSB may further include one or more physical broadcast channel (PBCH) repetitions. Master information blocks (MIBs) of the PBCH repetitions may be repeated in: (1) subsequential symbols, (2) symbols with one or more gaps therebetween, or (3) the subsequential symbols and the symbols with one or more gaps therebetween. More specifically, (1) the MIBs of the PBCH repetitions may be carried in the subsequential symbols, (2) the MIBs of the PBCH repetitions may be carried in the symbols while there is (are) gap (s) between these symbols, or (3) the MIBs of the PBCH repetitions may be carried in both the subsequential symbols and the symbols with gap (s) in between.
[0053] FIG. 2 is a diagram depicting an example scenario 200 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 4 symbols in one slot. The number of the PSS repetitions of the SSB is 2. The number of the PBCH repetitions of the SSB is 2. The PSS repetitions are repeated in subsequential symbols. The MIBs of the PBCH repetitions are repeated in subsequential symbols.
[0054] More specifically, the PSS repetitions are repeated in the first symbol and the second symbol of the SSB, and the MIBs of the PBCH repetitions are repeated in the third symbol and the fourth symbol. In other words, the PSS repetitions are occupied in the first symbol and the second symbol, and the MIBs of the PBCH repetitions are occupied in the third symbol and the fourth symbol. It should be noted that, in another example, there may be only one MIB of one PBCH occupying the third symbol and the fourth symbol.
[0055] FIG. 3 is a diagram depicting an example scenario 300 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 4 symbols in one slot. The number of the PSS repetitions of the SSB is 2. The number of the PBCH repetition of the SSB is 1. The number of the SSS repetition of the SSB is 1. The PSS repetitions are repeated in subsequential symbols. The MIB of the PBCH repetition is in one symbol. The SSS repetition is in one symbol.
[0056] More specifically, the PSS repetitions are repeated in the first symbol and the second symbol of the SSB, the MIB of the PBCH repetition is in the third symbol, and the SSS repetition is in the fourth symbol. In other words, the PSS repetitions are occupied in the first symbol and the second symbol, the MIB of the PBCH repetition is occupied in the third symbol, and the SSS repetition is occupied in the fourth symbol.
[0057] FIG. 4 is a diagram depicting an example scenario 400 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 4 symbols in one slot. The number of the PSS repetitions of the SSB is 2. The number of the PBCH repetition of the SSB is 1. The number of the SSS repetition of the SSB is 1. The PSS repetitions are repeated in subsequential symbols. The MIB of the PBCH repetition is in one symbol. The SSS repetition is in one symbol.
[0058] More specifically, the PSS repetitions are repeated in the first symbol and the second symbol of the SSB, the SSS repetition is in the third symbol, and the MIB of the PBCH repetition is in the fourth symbol. In other words, the PSS repetitions are occupied in the first symbol and the second symbol, the SSS repetition is occupied in the third symbol, and the MIB of the PBCH repetition is occupied in the fourth symbol.
[0059] FIG. 5 is a diagram depicting an example scenario 500 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 4 symbols in one slot. The number of the PSS repetitions of the SSB is 2. The number of the PBCH repetitions of the SSB is 2. The PSS repetitions are repeated in symbols with gaps in between. The MIBs of the PBCH repetitions are repeated in symbols with gaps in between.
[0060] More specifically, the PSS repetitions are repeated in the first symbol and the third symbol of the SSB while the second symbol and the fourth symbol are gaps to the PSS repetitions. The MIBs of the PBCH repetitions are repeated in the second symbol and the fourth symbol while the first symbol and the third symbol are gaps to the MIBs of the PBCH repetitions. In other words, the PSS repetitions are occupied in the first symbol and the third symbol, and the MIBs of the PBCH repetitions are occupied in the second symbol and the fourth symbol. It should be noted that, in another example, there may be only one MIB of one PBCH repetition occupying the second symbol and the fourth symbol.
[0061] FIG. 6 is a diagram depicting an example scenario 600 under schemes in accordance with implementations of the present disclosure. For example, one SSB consists of 4 symbols. The number of the PSS repetitions of the SSB is 2. The number of the PBCH repetitions of the SSB is 2. The PSS repetitions are repeated in symbols with gaps in between. The MIBs of the PBCH repetitions are repeated in subsequential symbols.
[0062] More specifically, the PSS repetitions are repeated in the first symbol and the fourth symbol of the SSB while the second symbol and the third symbol are gaps to the PSS repetitions. The MIBs of the PBCH repetitions are repeated in the second symbol and the third symbol. In other words, the PSS repetitions are occupied in the first symbol and the fourth symbol, and the MIBs of the PBCH repetitions are occupied in the second symbol and the third symbol. It should be noted that, in another example, there may be only one MIB of one PBCH repetition occupying the second symbol and the third symbol.
[0063] FIG. 7 is a diagram depicting an example scenario 700 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 6 symbols in one slot. The number of the PSS repetitions of the SSB is 4. The number of the PBCH repetitions of the SSB is 2. The PSS repetitions are repeated in subsequential symbols. The MIBs of the PBCH repetitions are repeated in subsequential symbols.
[0064] More specifically, the PSS repetitions are repeated in the first symbol to the fourth symbol of the SSB, and the MIBs of the PBCH repetitions are repeated in the fifth symbol and the sixth symbol. In other words, the PSS repetitions are occupied in the first symbol to the fourth symbol, and the MIBs of the PBCH repetitions are occupied in the fifth symbol and the sixth symbol. It should be noted that, in another example, there may be only one MIB of one PBCH occupying the fifth symbol and the sixth symbol.
[0065] FIG. 8 is a diagram depicting an example scenario 800 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 8 symbols in one slot. The number of the PSS repetitions of the SSB is 4. The number of the PBCH repetitions of the SSB is 4. The PSS repetitions are repeated in subsequential symbols. The MIBs of the PBCH repetitions are repeated in subsequential symbols.
[0066] More specifically, the PSS repetitions are repeated in the first symbol to the fourth symbol of the SSB, and the MIBs of the PBCH repetitions are repeated in the fifth symbol to the eighth symbol. In other words, the PSS repetitions are occupied in the first symbol to the fourth symbol, and the MIBs of the PBCH repetitions are occupied in the fifth symbol to the eighth symbol. It should be noted that, in another example, there may be one or two MIBs of one or two PBCH repetitions occupying the fifth symbol to the eighth symbol.
[0067] FIG. 9 is a diagram depicting an example scenario 900 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 6 symbols in one slot. The number of the PSS repetitions of the SSB is 4. The number of the PBCH repetition of the SSB is 1. The number of the SSS repetition of the SSB is 1. The PSS repetitions are repeated in subsequential symbols. The MIB of the PBCH repetition is in one symbol. The SSS repetition is in one symbol.
[0068] More specifically, the PSS repetitions are repeated in the first symbol to the fourth symbol of the SSB, the MIB of the PBCH repetition is in the fifth symbol, and the SSS repetition is in the sixth symbol. In other words, the PSS repetitions are occupied in the first symbol to the fourth symbol, the MIB of the PBCH repetition is occupied in the fifth symbol, and the SSS repetition is occupied in the sixth symbol.
[0069] FIG. 10 is a diagram depicting an example scenario 1000 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 6 symbols in one slot. The number of the PSS repetitions of the SSB is 4. The number of the PBCH repetition of the SSB is 1. The number of the SSS repetition of the SSB is 1. The PSS repetitions are repeated in subsequential symbols. The MIB of the PBCH repetition is in one symbol. The SSS repetition is in one symbol.
[0070] More specifically, the PSS repetitions are repeated in the first symbol to the fourth symbol of the SSB, the SSS repetition is in the fifth symbol, and the MIB of the PBCH repetition is in the sixth symbol. In other words, the PSS repetitions are occupied in the first symbol to the fourth symbol, the SSS repetition is occupied in the fifth symbol, and the MIB of the PBCH repetition is occupied in the sixth symbol.
[0071] FIG. 11 is a diagram depicting an example scenario 1100 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 8 symbols in one slot. The number of the PSS repetitions of the SSB is 4. The number of the PBCH repetitions of the SSB are 2. The number of the SSS repetitions of the SSB are 2. The PSS repetitions are repeated in subsequential symbols. The MIBs of the PBCH repetitions are repeated in subsequential symbols. The SSS repetitions are repeated in subsequential symbols.
[0072] More specifically, the PSS repetitions are repeated in the first symbol to the fourth symbol of the SSB, the MIBs of the PBCH repetitions are repeated in the fifth symbol and the sixth symbol, and the SSS repetitions are repeated in the seventh symbol and the eighth symbol. In other words, the PSS repetitions are occupied in the first symbol to the fourth symbol, the MIBs of the PBCH repetitions are occupied in the fifth symbol and the sixth symbol, and the SSS repetitions are occupied in the seventh symbol and the eighth symbol.
[0073] FIG. 12 is a diagram depicting an example scenario 1200 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 8 symbols in one slot. The number of the PSS repetitions of the SSB is 4. The number of the PBCH repetitions of the SSB is 2. The number of the SSS repetitions of the SSB is 2. The PSS repetitions are repeated in subsequential symbols. The MIBs of the PBCH repetitions are repeated in subsequential symbols. The SSS repetitions are repeated in subsequential symbols.
[0074] More specifically, the PSS repetitions are repeated in the first symbol to the fourth symbol of the SSB, the SSS repetitions are repeated in the fifth symbol and the sixth symbol, and the MIBs of the PBCH repetitions are repeated in the seventh symbol and the eighth symbol. In other words, the PSS repetitions are occupied in the first symbol to the fourth symbol, the SSS repetitions are occupied in the fifth symbol and the sixth symbol, and the MIBs of the PBCH repetitions are occupied in the seventh symbol and the eighth symbol.
[0075] FIG. 13 is a diagram depicting an example scenario 1300 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 6 symbols in one slot. The number of the PSS repetitions of the SSB is 4. The number of the PBCH repetitions of the SSB is 2. The PSS repetitions are repeated: (1) in subsequential symbols and (2) in symbols with gaps in between. The MIBs of the PBCH repetitions are repeated in subsequential symbols.
[0076] More specifically, two of the PSS repetitions are repeated in the first symbol and the second symbol of the SSB, and the other two of the PSS repetitions are repeated in the fifth symbol and the sixth symbol of the SSB while the third symbol and the fourth symbol are gaps to the PSS repetitions. The MIBs of the PBCH repetitions are repeated in the third symbol and the fourth symbol. In other words, the PSS repetitions are occupied in the first symbol, the second symbol, the fifth symbol and the sixth symbol, and the MIBs of the PBCH repetitions are occupied in the third symbol and the fourth symbol. It should be noted that, in another example, there may be only one MIB of one PBCH occupying the third symbol and the fourth symbol.
[0077] FIG. 14 is a diagram depicting an example scenario 1400 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 8 symbols in one slot. The number of the PSS repetitions of the SSB is 4. The number of the PBCH repetitions of the SSB is 4. The PSS repetitions are repeated: (1) in subsequential symbols and (2) in symbols with gaps in between. The MIBs of the PBCH repetitions are repeated: (1) in subsequential symbols and (2) in symbols with gaps in between.
[0078] More specifically, two of the PSS repetitions are repeated in the first symbol and the second symbol of the SSB, and the other two of the PSS repetitions are repeated in the fifth symbol and the sixth symbol of the SSB while the third symbol and the fourth symbol are gaps to the PSS repetitions. Two of the MIBs of the PBCH repetitions are repeated in the third symbol and the fourth symbol of the SSB, and the other two of the MIBs of the PBCH repetitions are repeated in the seventh symbol and the eighth symbol of the SSB while the fifth symbol and the sixth symbol are gaps to the MIBs of the PBCH repetitions. In other words, the PSS repetitions are occupied in the first symbol, the second symbol, the fifth symbol and the sixth symbol, and the MIBs of the PBCH repetitions are occupied in the third symbol, the fourth symbol, the seventh symbol and the eighth symbol. It should be noted that, in another example, there may be one or two MIBs of one or two PBCH repetitions occupying the third symbol, the fourth symbol, the seventh symbol and the eighth symbol.
[0079] FIG. 15 is a diagram depicting an example scenario 1500 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 8 symbols in one slot. The number of the PSS repetitions of the SSB is 4. The number of the PBCH repetitions of the SSB is 4. The PSS repetitions are repeated: (1) in subsequential symbols and (2) in symbols with gaps in between. The MIBs of the PBCH repetitions are repeated in subsequential symbols.
[0080] More specifically, two of the PSS repetitions are repeated in the first symbol and the second symbol of the SSB, and the other two of the PSS repetitions are repeated in the seventh symbol and the eighth symbol of the SSB while the third symbol to the sixth symbol are gaps to the PSS repetitions. The MIBs of the PBCH repetitions are repeated in the third symbol to the sixth symbol of the SSB. In other words, the PSS repetitions are occupied in the first symbol, the second symbol, the seventh symbol and the eighth symbol, and the MIBs of the PBCH repetitions are occupied in the third symbol to the sixth symbol. It should be noted that, in another example, there may be one or two MIBs of one or two PBCH repetitions occupying the third symbol to the sixth symbol.
[0081] FIG. 16 is a diagram depicting an example scenario 1600 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 8 symbols in one slot. The number of the PSS repetitions of the SSB is 4. The number of the PBCH repetitions of the SSB is 2. The number of the SSS repetitions of the SSB is 2. The PSS repetitions are repeated: (1) in subsequential symbols and (2) in symbols with gaps in between. The MIBs of the PBCH repetitions are repeated in subsequential symbols. The SSS repetitions are repeated in subsequential symbols.
[0082] More specifically, two of the PSS repetitions are repeated in the first symbol and the second symbol of the SSB, and the other two of the PSS repetitions are repeated in the fifth symbol and the sixth symbol of the SSB while the third symbol, the fourth symbol, the seventh symbol and the eighth symbol are gaps to the PSS repetitions. The MIBs of the PBCH repetitions are repeated in the third symbol and the fourth symbol of the SSB. The SSS repetitions are repeated in the seventh symbol and the eighth symbol of the SSB. In other words, the PSS repetitions are occupied in the first symbol, the second symbol, the fifth symbol and the sixth symbol, the MIBs of the PBCH repetitions are occupied in the third symbol and the fourth symbol, and the SSS repetitions are occupied in the seventh symbol and the eighth symbol. It should be noted that, in another example, there may be one MIB of one PBCH repetition occupying the third symbol and the fourth symbol.
[0083] FIG. 17 is a diagram depicting an example scenario 1700 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 8 symbols in one slot. The number of the PSS repetitions of the SSB is 4. The number of the PBCH repetitions of the SSB is 2. The number of the SSS repetitions of the SSB is 2. The PSS repetitions are repeated: (1) in subsequential symbols and (2) in symbols with gaps in between. The MIBs of the PBCH repetitions are repeated in subsequential symbols. The SSS repetitions are repeated in subsequential symbols.
[0084] More specifically, two of the PSS repetitions are repeated in the first symbol and the second symbol of the SSB, and the other two of the PSS repetitions are repeated in the fifth symbol and the sixth symbol of the SSB while the third symbol, the fourth symbol, the seventh symbol and the eighth symbol are gaps to the PSS repetitions. The SSS repetitions are repeated in the third symbol and the fourth symbol of the SSB. The MIBs of the PBCH repetitions are repeated in the seventh symbol and the eighth symbol of the SSB. In other words, the PSS repetitions are occupied in the first symbol, the second symbol, the fifth symbol and the sixth symbol, the SSS repetitions are occupied in the third symbol and the fourth symbol, and the MIBs of the PBCH repetitions are occupied in the seventh symbol and the eighth symbol. It should be noted that, in another example, there may be one MIB of one PBCH repetition occupying the seventh symbol and the eighth symbol.
[0085] FIG. 18 is a diagram depicting an example scenario 1800 under schemes in accordance with implementations of the present disclosure. For example, there are two SSBs in one slot, and each SSB consists of 4 symbols. The total number of the PSS repetitions of the SSBs is 4, and the number of the PSS repetitions of each SSB is 2. The total number of the PBCH repetitions and / or the SSS repetitions of the SSBs is 4, and the number of the PBCH repetitions and / or the SSS repetitions of each SSB is 2. There is an offset between the two SSBs in the slot. In each SSB, the PSS repetitions are repeated in symbols with gaps in between, and the MIBs of the PBCH repetitions and / or the SSS repetitions are repeated in subsequential symbols.
[0086] More specifically, the PSS repetitions are repeated in the first symbol and the fourth symbol of each SSB while the second symbol and the third symbol of each SSB are gaps to the PSS repetitions. The MIBs of the PBCH repetitions and / or the SSS repetitions are repeated in the second symbol and the third symbol of each SSB. In other words, the PSS repetitions are occupied in the first symbol and the fourth symbol of each SSB, and the MIBs of the PBCH repetitions and / or the SSS repetitions are occupied in the second symbol and the third symbol of each SSB.
[0087] FIG. 19 is a diagram depicting an example scenario 1900 under schemes in accordance with implementations of the present disclosure. For example, there are two SSBs in one slot, and each SSB consists of 4 symbols. The total number of the PSS repetitions of the SSBs is 4, and the number of the PSS repetitions of each SSB is 2. The total number of the PBCH repetitions and / or the SSS repetitions of the SSBs is 4, and the number of the PBCH repetitions and / or the SSS repetitions of each SSB is 2. There is an offset between the two SSBs in the slot. In each SSB, the PSS repetitions are repeated in subsequential symbols, and the MIBs of the PBCH repetitions and / or the SSS repetitions are repeated in subsequential symbols.
[0088] More specifically, the PSS repetitions are repeated in the first symbol and the second symbol of each SSB. The MIBs of the PBCH repetitions and / or the SSS repetitions are repeated in the third symbol and the fourth symbol of each SSB. In other words, the PSS repetitions are occupied in the first symbol and the second symbol of each SSB, and the MIBs of the PBCH repetitions and / or the SSS repetitions are occupied in the third symbol and the fourth symbol of each SSB.
[0089] FIG. 20 is a diagram depicting an example scenario 2000 under schemes in accordance with implementations of the present disclosure. For example, there are two SSBs in one slot, and each SSB consists of 4 symbols. The total number of the PSS repetitions of the SSBs is 4, and the number of the PSS repetitions of each SSB is 2. The total number of the PBCH repetitions and / or the SSS repetitions of the SSBs is 4, and the number of the PBCH repetitions and / or the SSS repetitions of each SSB is 2. There is an offset between the two SSBs in the slot. In each SSB, the PSS repetitions are repeated in symbols with gaps in between, and the MIBs of the PBCH repetitions and / or the SSS repetitions are repeated in symbols with gaps in between.
[0090] More specifically, the PSS repetitions are repeated in the first symbol and the third symbol of each SSB while the second symbol and the fourth symbol of each SSB are gaps to the PSS repetitions. The MIBs of the PBCH repetitions and / or the SSS repetitions are repeated in the second symbol and the fourth symbol of each SSB while the first symbol and the third symbol of each SSB are gaps to the MIBs of the PBCH repetitions and / or the SSS repetitions. In other words, the PSS repetitions are occupied in the first symbol and the third symbol of each SSB, and the MIBs of the PBCH repetitions and / or the SSS repetitions are occupied in the second symbol and the fourth symbol of each SSB.
[0091] It should be noted that, in the above examples, the offsets are illustrated as two symbols. However, it is not intended to limit the offset. In other examples, the offset may be 2, 3, 4, 5 or 6. The offset may be predefined or updated by radio resource control (RRC) , system information block (SIB) or media access control-control element (MAC-CE) .
[0092] FIG. 21 is a diagram depicting an example scenario 2100 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 10 symbols in one slot. The number of the PSS repetitions of the SSB is 8. The number of the PBCH repetitions of the SSB is 2. The PSS repetitions are repeated in subsequential symbols. The MIBs of the PBCH repetitions are repeated in subsequential symbols.
[0093] More specifically, the PSS repetitions are repeated in the first symbol to the eighth symbol of the SSB, and the MIBs of the PBCH repetitions are repeated in the ninth symbol and the tenth symbol. In other words, the PSS repetitions are occupied in the first symbol to the eighth symbol, and the MIBs of the PBCH repetitions are occupied in the ninth symbol and the tenth symbol. It should be noted that, in another example, there may be only one or two MIBs of one or two PBCH repetitions occupying the ninth symbol and the tenth symbol.
[0094] FIG. 22 is a diagram depicting an example scenario 2200 under schemes in accordance with implementations of the present disclosure. For example, there is one SSB consisting of 12 symbols in one slot. The number of the PSS repetitions of the SSB is 8. The number of the PBCH repetitions of the SSB is 4. The PSS repetitions are repeated in subsequential symbols. The MIBs of the PBCH repetitions are repeated in subsequential symbols.
[0095] More specifically, the PSS repetitions are repeated in the first symbol to the eighth symbol of the SSB, and the MIBs of the PBCH repetitions are repeated in the ninth symbol to the twelfth symbol. In other words, the PSS repetitions are occupied in the first symbol to the eighth symbol, and the MIBs of the PBCH repetitions are occupied in the ninth symbol to the twelfth symbol. It should be noted that, in another example, there may be only one or two MIBs of one or two PBCH repetitions occupying the ninth symbol to the twelfth symbol.
[0096] FIG. 23 is a diagram depicting an example scenario 2300 under schemes in accordance with implementations of the present disclosure. For example, across slots, there is one SSB consisting of 16 symbols and an offset. The number of the PSS repetitions of the SSB is 8. The number of the PBCH repetitions of the SSB is 8. The offset is between the PSS repetitions and the MIBs of the PBCH repetitions. The PSS repetitions are repeated in subsequential symbols. The MIBs of the PBCH repetitions are repeated in subsequential symbols.
[0097] More specifically, the PSS repetitions are repeated in the first eight symbols of the SSB, and the MIBs of the PBCH repetitions are repeated in the last eight symbols of the SSB while the offset is between the last PSS repetition and the MIB of the first PBCH repetition. In other words, the PSS repetitions are occupied in the first eight symbols, and the MIBs of the PBCH repetitions are occupied in the last eight symbols. It should be noted that the offset is illustrated as four symbols. However, it is not intended to limit the offset. In other examples, the offset may be 2, 3, 4, 5 or 6. The offset may be predefined or updated by RRC, SIB or MAC-CE.
[0098] FIG. 24 is a diagram depicting an example scenario 2400 under schemes in accordance with implementations of the present disclosure. For example, across slots, there is one SSB consisting of two sub-SSBs, and each sub-SSB consists of 8 symbols. The total number of the PSS repetitions of the SSB is 8, and the number of the PSS repetitions of each sub-SSB is 4. The total number of the PBCH repetitions and / or the SSS repetitions of the SSB is 8, and the number of the PBCH repetitions and / or the SSS repetitions of each sub-SSB is 4. There is an offset between the two sub-SSBs across the slots. In each sub-SSB, the PSS repetitions are repeated in subsequential symbols, and the MIBs of the PBCH repetitions and / or the SSS repetitions are repeated in subsequential symbols.
[0099] More specifically, the PSS repetitions are repeated in the first four symbols of each sub-SSB. The MIBs of the PBCH repetitions and / or the SSS repetitions are repeated in the last four symbols of each sub-SSB. In other words, the PSS repetitions are occupied in the first four symbols of each sub-SSB, and the MIBs of the PBCH repetitions and / or the SSS repetitions are occupied in the last four symbols of each sub-SSB. It should be noted that the offset is illustrated as four symbols. However, it is not intended to limit the offset. In other examples, the offset may be 2, 3, 4, 5 or 6. The offset may be predefined or updated by RRC, SIB or MAC-CE.
[0100] In some implementations, different SSBs may utilize different SSB indexes to indicate different wide beams. The candidate SSBs (i.e., SS / PBCH blocks) in one periodicity may be indexed in an ascending order in time from 0 to while Lmax is a maximum number of SSB indexes in a cell, i.e., the maximum number of transmitted SSBs within one periodicity is Lmax. In some cases, Lmax may include 1, 2, 4, 8, 16, 64, 128, or 256. The maximum number of candidate SSBs (i.e., Lmax) within an SS burst set (i.e., within one periodicity) may be associated with (i.e., may depend upon) carrier frequency / band, subcarrier spacing (SCS) and a type of non-terrestrial network (NTN) or terrestrial network (TN) . In some cases, the SSB periodicity may be predefined value for initial access, e.g., 10ms or 20ms.
[0101] In some implementations, a pattern of the PSSs of the SSB may be associated with a type of NTN or TN (i.e., NTN / TN differentiation) . In addition, the pattern of the PSSs of the SSB may be utilized for a combination of SCS and carrier frequency. In some cases, the SSB pattern may be configured or updated by MAC-CE, RRC, SIB or MIB.
[0102] In some cases, a quick differentiation between TN and NTN with different may depend on different SSB patterns during initial access. For example, a specific SSB pattern including a specific PSS repetitions pattern is designed for NTN. Accordingly, the UE may distinguish NTN by PSS detection. More specifically, in an event that the UE detects the specific PSS repetitions pattern (e.g., four sequential PSS repetitions in time domain) , the UE identifies NTN immediately before receiving NTN specific SIB or SIB1.
[0103] FIG. 25 is a diagram depicting an example scenario 2500 under schemes in accordance with implementations of the present disclosure. In some cases, there may be two PSS repetitions in one SSB. In these cases, the SSB pattern may be predefined for initial access based on at least one of the following: SCS of the SSB, carrier frequency and NTN / TN differentiation as illustrated in a table of FIG. 25.
[0104] FIGS. 26A and 26B are diagrams depicting an example scenario 2600 under schemes in accordance with implementations of the present disclosure. In some cases, there may be four PSS repetitions in one SSB. In these cases, the SSB pattern may be predefined for initial access based on at least one of the following: SCS of the SSB, carrier frequency and NTN / TN differentiation as illustrated in a table of FIGS. 26A and 26B.
[0105] FIGS. 27A and 27B are diagrams depicting an example scenario 2700 under schemes in accordance with implementations of the present disclosure. In some cases, there may be eight PSS repetitions in one SSB. In these cases, the SSB pattern may be predefined for initial access based on at least one of the following: SCS of the SSB, carrier frequency and NTN / TN differentiation as illustrated in a table of FIGS. 27A and 27B. Illustrative Implementations
[0106] FIG. 28 illustrates an example communication system 2800 having an example communication apparatus 2810 and an example network apparatus 2820 in accordance with an implementation of the present disclosure. Each of communication apparatus 2810 and network apparatus 2820 may perform various functions to implement schemes, techniques, processes and methods described herein pertaining to SSB transmission with respect to UE and network apparatus in mobile communications, including scenarios / schemes described above as well as processes 2900 and 3000 described below.
[0107] Communication apparatus 2810 may be a part of an electronic apparatus, which may be a UE such as a portable or mobile apparatus, a wearable apparatus, a wireless communication apparatus or a computing apparatus. For instance, communication apparatus 2810 may be implemented in a smartphone, a smartwatch, a personal digital assistant, a digital camera, or a computing equipment such as a tablet computer, a laptop computer or a notebook computer. Communication apparatus 2810 may also be a part of a machine type apparatus, which may be an IoT, NB-IoT, or IIoT apparatus such as an immobile or a stationary apparatus, a home apparatus, a wire communication apparatus or a computing apparatus. For instance, communication apparatus 2810 may be implemented in a smart thermostat, a smart fridge, a smart door lock, a wireless speaker or a home control center. Alternatively, communication apparatus 2810 may be implemented in the form of one or more integrated-circuit (IC) chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, one or more reduced-instruction set computing (RISC) processors, or one or more complex-instruction-set-computing (CISC) processors. Communication apparatus 2810 may include at least some of those components shown in FIG. 28 such as a processor 2812, for example. Communication apparatus 2810 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and / or user interface device) , and, thus, such component (s) of communication apparatus 2810 are neither shown in FIG. 28 nor described below in the interest of simplicity and brevity.
[0108] Network apparatus 2820 may be a part of a network apparatus, which may be a network node such as a satellite, a base station, a small cell, a router or a gateway. For instance, network apparatus 2820 may be implemented in an eNodeB in an LTE network, in a gNB in a 5G / NR, IoT, NB-IoT or IIoT network or in a satellite or base station in a 6G network. Alternatively, network apparatus 2820 may be implemented in the form of one or more IC chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, or one or more RISC or CISC processors. Network apparatus 2820 may include at least some of those components shown in FIG. 28 such as a processor 2822, for example. Network apparatus 2820 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and / or user interface device) , and, thus, such component (s) of network apparatus 2820 are neither shown in FIG. 28 nor described below in the interest of simplicity and brevity.
[0109] In one aspect, each of processor 2812 and processor 2822 may be implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC processors. That is, even though a singular term “a processor” is used herein to refer to processor 2812 and processor 2822, each of processor 2812 and processor 2822 may include multiple processors in some implementations and a single processor in other implementations in accordance with the present disclosure. In another aspect, each of processor 2812 and processor 2822 may be implemented in the form of hardware (and, optionally, firmware) with electronic components including, for example and without limitation, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors and / or one or more varactors that are configured and arranged to achieve specific purposes in accordance with the present disclosure. In other words, in at least some implementations, each of processor 2812 and processor 2822 is a special-purpose machine specifically designed, arranged and configured to perform specific tasks including SSB transmission in a device (e.g., as represented by communication apparatus 2810) and a network (e.g., as represented by network apparatus 2820) in accordance with various implementations of the present disclosure.
[0110] In some implementations, communication apparatus 2810 may also include a transceiver 2816 coupled to processor 2812 and capable of wirelessly transmitting and receiving data. In other words, processor 2812 may transceive the data such as configuration, message, signal, information, indicator, etc. via transceiver 2816. In some implementations, communication apparatus 2810 may further include a memory 2814 coupled to processor 2812 and capable of being accessed by processor 2812 and storing data therein. In some implementations, network apparatus 2820 may also include a transceiver 2826 coupled to processor 2822 and capable of wirelessly transmitting and receiving data. In other words, processor 2822 may transceive the data such as configuration, message, signal, information, indicator, etc. via transceiver 2826. In some implementations, network apparatus 2820 may further include a memory 2824 coupled to processor 2822 and capable of being accessed by processor 2822 and storing data therein. Accordingly, communication apparatus 2810 and network apparatus 2820 may wirelessly communicate with each other via transceiver 2816 and transceiver 2826, respectively. To aid better understanding, the following description of the operations, functionalities and capabilities of each of communication apparatus 2810 and network apparatus 2820 is provided in the context of a mobile communication environment in which communication apparatus 2810 is implemented in or as a communication apparatus or a UE and network apparatus 2820 is implemented in or as a network node of a communication network.
[0111] In some implementations, each of memory 2814 and memory 2824 may include a type of random-access memory (RAM) such as dynamic RAM (DRAM) , static RAM (SRAM) , thyristor RAM (T-RAM) and / or zero-capacitor RAM (Z-RAM) . Alternatively, or additionally, each of memory 2814 and memory 2824 may include a type of read-only memory (ROM) such as mask ROM, programmable ROM (PROM) , erasable programmable ROM (EPROM) and / or electrically erasable programmable ROM (EEPROM) . Alternatively, or additionally, each of memory 2814 and memory 2824 may include a type of non-volatile random-access memory (NVRAM) such as flash memory, solid-state memory, ferroelectric RAM (FeRAM) , magnetoresistive RAM (MRAM) and / or phase-change memory. Illustrative Processes
[0112] FIG. 29 illustrates an example process 2900 in accordance with an implementation of the present disclosure. Process 2900 may be an example implementation of above scenarios / schemes, whether partially or completely, with respect to SSB transmission of the present disclosure. Process 2900 may represent an aspect of implementation of features of network apparatus 2820. Process 2900 may include one or more operations, actions, or functions as illustrated by at least one block 2910. Although illustrated as discrete blocks, various blocks of process 2900 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 2900 may be executed in the order shown in FIG. 29 or, alternatively, in a different order. Process 2900 may be implemented by network apparatus 2820 or any suitable network device or machine type devices. Solely for illustrative purposes and without limitation, process 2900 is described below in the context of network apparatus 2820. Process 2900 may begin at block 2910.
[0113] At block 2910, process 2900 may involve processor 2822 of network apparatus 2820 transmitting an SSB to the communication apparatus 2810. The SSB may include a plurality of PSS repetitions.
[0114] In some implementations, a number of the PSS repetitions may include 2, 4, 8, 16 or 32.
[0115] In some implementations, the PSS repetitions may be repeated in at least one of: (1) subsequential symbols, and (2) symbols with one or more gaps therebetween.
[0116] In some implementations, the SSB may include at least one of: (1) one or more SSS repetitions, and (2) one or more PBCH repetitions.
[0117] In some implementations, the SSB may include the SSS repetitions, and the SSS repetitions may be repeated in at least one of: (1) subsequential symbols, and (2) symbols with one or more gaps therebetween.
[0118] In some implementations, the SSB may include the PBCH repetitions, and MIBs of the PBCH repetitions may be repeated in at least one of: (1) subsequential symbols, and (2) symbols with one or more gaps therebetween.
[0119] In some implementations, a pattern of the PSSs of the SSB may be associated with a type of NTN or TN.
[0120] In some implementations, a pattern of the PSS repetitions of the SSB may be utilized for a combination of SCS and carrier frequency.
[0121] In some implementations, a maximum number of candidate SSBs may include 1, 2, 4, 8, 16, 64, 128 or 256, and the maximum number of candidate SSBs within a periodicity may be associated with carrier frequency, SCS and a type of NTN or TN.
[0122] FIG. 30 illustrates an example process 3000 in accordance with an implementation of the present disclosure. Process 3000 may be an example implementation of above scenarios / schemes, whether partially or completely, with respect to SSB transmission of the present disclosure. Process 3000 may represent an aspect of implementation of features of communication apparatus 2810. Process 3000 may include one or more operations, actions, or functions as illustrated by one or more of blocks 3010. Although illustrated as discrete blocks, various blocks of process 3000 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 3000 may be executed in the order shown in FIG. 30 or, alternatively, in a different order. Process 3000 may be implemented by communication apparatus 2810 or any suitable UE or machine type devices. Solely for illustrative purposes and without limitation, process 3000 is described below in the context of communication apparatus 2810. Process 800 may begin at block 3010.
[0123] At block 3010, process 3000 may involve processor 2812 of communication apparatus 2810 receiving an SSB from network apparatus 2820. The SSB may include a plurality of PSS repetitions.
[0124] In some implementations, a number of the PSS repetitions may include 2, 4, 8, 16 or 32.
[0125] In some implementations, the PSS repetitions may be repeated in at least one of: (1) subsequential symbols, and (2) symbols with one or more gaps therebetween.
[0126] In some implementations, the SSB may include at least one of: (1) one or more SSS repetitions, and (2) one or more PBCH repetitions.
[0127] In some implementations, the SSB may include the SSS repetitions, and the SSS repetitions may be repeated in at least one of: (1) subsequential symbols, and (2) symbols with one or more gaps therebetween.
[0128] In some implementations, the SSB may include the PBCH repetitions, and MIBs of the PBCH repetitions may be repeated in at least one of: (1) subsequential symbols, and (2) symbols with one or more gaps therebetween.
[0129] In some implementations, a pattern of the PSSs of the SSB may be associated with a type of NTN or TN.
[0130] In some implementations, process 800 may involve processor 2812 of communication apparatus 2810 determining the type of NTN or TN according to the pattern of the PSSs of the SSB.
[0131] In some implementations, a pattern of the PSS repetitions of the SSB may be utilized for a combination of SCS and carrier frequency. Additional Notes
[0132] The herein-described subject matter sometimes illustrates different components contained within, or connected with, different other components. It is to be understood that such depicted architectures are merely examples, and that in fact many other architectures can be implemented which achieve the same functionality. In a conceptual sense, any arrangement of components to achieve the same functionality is effectively "associated" such that the desired functionality is achieved. Hence, any two components herein combined to achieve a particular functionality can be seen as "associated with" each other such that the desired functionality is achieved, irrespective of architectures or intermedial components. Likewise, any two components so associated can also be viewed as being "operably connected" , or "operably coupled" , to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being "operably couplable" , to each other to achieve the desired functionality. Specific examples of operably couplable include but are not limited to physically mateable and / or physically interacting components and / or wirelessly interactable and / or wirelessly interacting components and / or logically interacting and / or logically interactable components.
[0133] Further, with respect to the use of substantially any plural and / or singular terms herein, those having skill in the art can translate from the plural to the singular and / or from the singular to the plural as is appropriate to the context and / or application. The various singular / plural permutations may be expressly set forth herein for sake of clarity.
[0134] Moreover, it will be understood by those skilled in the art that, in general, terms used herein, and especially in the appended claims, e.g., bodies of the appended claims, are generally intended as “open” terms, e.g., the term “including” should be interpreted as “including but not limited to, ” the term “having” should be interpreted as “having at least, ” the term “includes” should be interpreted as “includes but is not limited to, ” etc. It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases "at least one" and "one or more" to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles "a" or "an" limits any particular claim containing such introduced claim recitation to implementations containing only one such recitation, even when the same claim includes the introductory phrases "one or more" or "at least one" and indefinite articles such as "a" or "an, " e.g., “a” and / or “an” should be interpreted to mean “at least one” or “one or more; ” the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should be interpreted to mean at least the recited number, e.g., the bare recitation of "two recitations, " without other modifiers, means at least two recitations, or two or more recitations. Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc. ” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention, e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. In those instances where a convention analogous to “at least one of A, B, or C, etc. ” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention, e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. It will be further understood by those within the art that virtually any disjunctive word and / or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B. ”
[0135] From the foregoing, it will be appreciated that various implementations of the present disclosure have been described herein for purposes of illustration, and that various modifications may be made without departing from the scope and spirit of the present disclosure. Accordingly, the various implementations disclosed herein are not intended to be limiting, with the true scope and spirit being indicated by the following claims.
Claims
1.A method, comprising:transmitting, by a processor of an apparatus, a synchronization signal block (SSB) to a user equipment (UE) ,wherein the SSB includes a plurality of primary synchronization signal (PSS) repetitions.2.The method of Claim 1, wherein a number of the PSS repetitions includes 2, 4, 8, 16 or 32.3.The method of Claim 1, wherein the PSS repetitions are repeated in at least one of:subsequential symbols; andsymbols with one or more gaps therebetween.4.The method of Claim 1, wherein the SSB includes at least one of:one or more secondary synchronization signal (SSS) repetitions; andone or more physical broadcast channel (PBCH) repetitions.5.The method of Claim 4, wherein the SSB includes the SSS repetitions, and the SSS repetitions are repeated in at least one of:subsequential symbols; andsymbols with one or more gaps therebetween.6.The method of Claim 4, wherein the SSB includes the PBCH repetitions, and master information blocks (MIBs) of the PBCH repetitions are repeated in at least one of:subsequential symbols; andsymbols with one or more gaps therebetween.7.The method of Claim 1, wherein a pattern of the PSSs of the SSB is associated with a type of non-terrestrial network (NTN) or terrestrial network (TN) .8.The method of Claim 1, wherein a pattern of the PSS repetitions of the SSB is utilized for a combination of subcarrier spacing (SCS) and carrier frequency.9.The method of Claim 1, wherein a maximum number of candidate SSBs includes 1, 2, 4, 8, 16, 64, 128 or 256, and wherein the maximum number of candidate SSBs within a periodicity is associated with carrier frequency, subcarrier spacing (SCS) and a type of non-terrestrial network (NTN) or terrestrial network (TN) .10.A method, comprising:receiving, by a processor of an apparatus, a synchronization signal block (SSB) from a network node,wherein the SSB includes a plurality of primary synchronization signal (PSS) repetitions.11.The method of Claim 10, wherein a number of the PSS repetitions includes 2, 4, 8, 16 or 32.12.The method of Claim 10, wherein the PSS repetitions are repeated in at least one of:subsequential symbols; andsymbols with one or more gaps therebetween.13.The method of Claim 10, wherein the SSB includes at least one of:one or more secondary synchronization signal (SSS) repetitions; andone or more physical broadcast channel (PBCH) repetitions.14.The method of Claim 13, wherein the SSB includes the SSS repetitions, and the SSS repetitions are repeated in at least one of:subsequential symbols; andsymbols with one or more gaps therebetween.15.The method of Claim 13, wherein the SSB includes the PBCH repetitions, and master information blocks (MIBs) of the PBCH repetitions are repeated in at least one of:subsequential symbols; andsymbols with one or more gaps therebetween.16.The method of claim 10, wherein a pattern of the PSS repetitions of the SSB is associated with a type of non-terrestrial network (NTN) or terrestrial network (TN) .17.The method of Claim 16, further comprising:determining, by the processor, the type of NTN or TN according to the pattern of the PSSs of the SSB.18.The method of Claim 10, wherein a pattern of the PSSs of the SSB is utilized for a combination of subcarrier spacing (SCS) and carrier frequency.19.An apparatus, comprising:a transceiver which, during operation, wirelessly communicates with a user equipment (UE) ; anda processor communicatively coupled to the transceiver such that, during operation, the processor performs operations comprising:determining a beam coverage associated with a beam identification, wherein the beam coverage is determined based on a predefined information or based on a synchronization signal block (SSB) ; andtransmitting, via the transceiver, a synchronization signal block (SSB) to the UE,wherein the SSB includes a plurality of primary synchronization signal (PSS) repetitions.20.The apparatus of Claim 19, wherein a pattern of the PSS repetitions of the SSB is associated with a type of non-terrestrial network (NTN) or terrestrial network (TN) , and wherein the pattern of the PSS repetitions of the SSB is utilized for a combination of subcarrier spacing (SCS) and carrier frequency.
Citation Information
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