CN-116097754-B - Coordinated cellular coverage for mobile base stations

Abstract

The present application relates to apparatus and components including devices, systems and methods for providing coordinated cellular coverage by a mobile base station.

Inventors

• N. K.R. Parle Venkata
• XU FANGLI
• S - V - Fanjiala
• WU ZHIBIN
• CHEN YUQIN
• HU HAIJING
• ZHANG DAWEI

Assignees

• 苹果公司

Dates

Publication Date

20260508

Application Date

20200813

Claims (16)

1. 1. One or more computer-readable media having instructions that, when executed by one or more processors, cause a mobile base station to: receiving, from a core network function, a first portion of cell handover information for a plurality of serving cells respectively associated with a plurality of geographic areas to which the mobile base station is to be adjacent based on a scheduled route of the mobile base station, wherein the first portion of cell handover information comprises cell level information; Receiving a transfer request from a source mobile base station, the transfer request comprising a second portion of the cell handover information, wherein the second portion of the cell handover information comprises user equipment, UE, level information regarding a status of allocated resources, a hybrid automatic repeat request, HARQ, procedure, paging procedure, random access procedure, or mobility procedure within the serving cell; determining that the mobile base station will be proximate to a first geographic location in the plurality of geographic areas for a period of time, and A serving cell is provided at the first geographic location during the time period based on the first portion and the second portion of the cell handover information.
2. 2. The one or more computer-readable media of claim 1, wherein to provide the serving cell, the mobile base station further transmits synchronization signals and system information corresponding to the serving cell based on the first portion or the second portion of the cell handover information.
3. 3. The one or more computer-readable media of claim 1, wherein the UE-level information corresponds to a UE in a radio resource control, RRC, connected mode within the serving cell.
4. 4. The one or more computer-readable media of claim 1, wherein to provide the serving cell, the mobile base station transmits channel state information-reference signals to the UE.
5. 5. The one or more computer-readable media of any of claims 1-4, wherein the instructions, when executed, further cause the mobile base station to: accessing routing information to determine the scheduling route of the mobile base station, and At least the first portion of the cell handover information and the first geographic location are determined based on the scheduling route.
6. 6. The one or more computer-readable media of claim 5, wherein the instructions, when executed, further cause the mobile base station to receive a message with at least the first portion of the cell handover information or the routing information from a base station tracking function in a core network.
7. 7. The one or more computer-readable media of any of claims 1-4, wherein the instructions, when executed, further cause the mobile base station to transmit channel state information-reference signal, CSI-RS, to one or more connected user equipments in the serving cell concurrently with the source mobile base station.
8. 8. The one or more computer-readable media of any of claims 1-4, wherein the mobile base station is a mobile base station centralized unit, CU, and to provide the serving cell, the mobile base station, CU, provides radio resource control, RRC, layer operation, service data adaptation protocol, SDAP, layer operation, or packet data convergence protocol, PDCP, layer operation, and controls a mobile base station distributed unit, DU, to provide an air interface for the serving cell.
9. 9. A method for non-terrestrial communications, the method comprising: Receiving, from a core network function, a first portion of cell handover information for a plurality of serving cells respectively associated with a plurality of geographic areas to which the mobile base station is to be adjacent based on a scheduled route of the mobile base station, wherein the first portion of cell handover information comprises cell level information; Receiving a transfer request from a source mobile base station, the transfer request comprising a second portion of the cell handover information, wherein the second portion of the cell handover information comprises user equipment, UE, level information regarding a status of allocated resources, a hybrid automatic repeat request, HARQ, procedure, paging procedure, random access procedure, or mobility procedure within the serving cell; determining that the mobile base station will be proximate to a first geographic location in the plurality of geographic areas for a period of time, and A serving cell is provided at the first geographic location during the time period based on the first portion and the second portion of the cell handover information.
10. 10. The method of claim 9, wherein providing the serving cell comprises: A synchronization signal and system information corresponding to the serving cell is transmitted based on the first portion or the second portion of the cell handover information.
11. 11. The method of claim 9, further comprising: UE level information corresponding to a user equipment UE in a radio resource control, RRC, connected mode within the serving cell is determined.
12. 12. The method of claim 11, further comprising: The transfer request is received from a source mobile base station over an Xn interface, the transfer request including the UE-level information.
13. 13. The method of claim 9, wherein providing the serving cell comprises: Channel state information-reference signals are transmitted to the UE.
14. 14. The method of any of claims 9-13, further comprising: accessing routing information to determine the scheduling route of the mobile base station, and At least the first portion of the cell handover information and the first geographic location are determined based on the scheduling route.
15. 15. The method of claim 14, further comprising receiving a message with at least the first portion of the cell switch information or the routing information from a base station tracking function in a core network.
16. 16. The method of any one of claims 9-13, further comprising transmitting a synchronization signal in the serving cell concurrently with the source mobile base station.

Description

Coordinated cellular coverage for mobile base stations Background Third generation partnership project (3 GPP) networks rely on a large number of geographically distributed base stations to provide cellular coverage over an extended area. User Equipment (UE) may travel between areas covered by different base stations. As the UE moves between cells, the source base station may handover communications to the target base station to provide continuous and uninterrupted service to the UE. The 3GPP working group is researching techniques about mobile base stations to enable new air interface (NR) protocols to be run in various access networks, including non-terrestrial access networks. For example, the discussion is in progress in at least the radio access network 2 (RAN 2) working group. Further consideration of handover and coordinated cellular coverage is required in such access networks. Drawings Fig. 1 illustrates a network environment according to some embodiments. Fig. 2 illustrates a cell transfer procedure according to some embodiments. Fig. 3 illustrates a cell transfer procedure with overlapping coverage, according to some embodiments. Fig. 4 illustrates a network environment according to some embodiments. Fig. 5 illustrates a map overlay that facilitates network resource planning in accordance with some embodiments. Fig. 6 illustrates a network environment with mobile centralized units, according to some embodiments. Fig. 7 illustrates an operational flow/algorithm structure according to some embodiments. Fig. 8 illustrates an operational flow/algorithm structure according to some embodiments. Fig. 9 illustrates an operational flow/algorithm structure according to some embodiments. Fig. 10 illustrates a beamforming circuit according to some embodiments. Fig. 11 illustrates an apparatus according to some embodiments. Detailed Description The following detailed description refers to the accompanying drawings. The same reference numbers may be used in different drawings to identify the same or similar elements. In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular structures, architectures, interfaces, techniques, etc. in order to provide a thorough understanding of the various aspects of the various embodiments. However, it will be apparent to one skilled in the art having the benefit of this disclosure that the various aspects of the embodiments may be practiced in other examples that depart from these specific details. In certain instances, descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the various embodiments with unnecessary detail. For the purposes of this document, the phrase "a or B" refers to (a), (B) or (a and B). The following is a glossary of terms that may be used in this disclosure. As used herein, the term "circuitry" refers to, is part of, or includes a hardware component, such as an electronic circuit, a logic circuit, a processor (shared, dedicated, or group) or memory (shared, dedicated, or group) configured to provide the described functionality, an Application Specific Integrated Circuit (ASIC), a Field Programmable Device (FPD) (e.g., a Field Programmable Gate Array (FPGA), a Programmable Logic Device (PLD), a Complex PLD (CPLD), a high-capacity PLD (hcpll), a structured ASIC, or a system-on-a-chip (SoC)), or a Digital Signal Processor (DSP). In some implementations, circuitry may execute one or more software or firmware programs to provide at least some of the functions. The term "circuitry" may also refer to a combination of one or more hardware elements and program code for performing the function of the program code (or a combination of circuitry used in an electrical or electronic system). In these embodiments, the combination of hardware elements and program code may be referred to as a particular type of circuit. As used herein, the term "processor circuit" refers to, is part of, or includes circuitry capable of sequentially and automatically performing a series of arithmetic or logical operations or recording, storing, or transmitting digital data. The term "processor circuit" may refer to an application processor, a baseband processor, a Central Processing Unit (CPU), a graphics processing unit, a single-core processor, a dual-core processor, a tri-core processor, a quad-core processor, or any other device capable of executing or otherwise operating computer-executable instructions (such as program code, software modules, and/or functional processes). As used herein, the term "interface circuit" refers to, is part of, or includes a circuit that enables the exchange of information between two or more components or devices. The term "interface circuit" may refer to one or more hardware interfaces, such as a bus, an I/O interface, a peripheral component interface, a network interface card, and the like. As used herein, the term "user equipmen