JP-7856576-B2 - Terminal equipment, base station equipment, and method
Inventors
- 坪井 秀和
- 山田 昇平
- 堀 貴子
- 井上 恭輔
Assignees
- シャープ株式会社
Dates
- Publication Date
- 20260511
- Application Date
- 20211012
- Priority Date
- 20201014
Claims (3)
- A terminal device that communicates with a base station device, A receiving unit that receives a first RRC message from the base station device containing parameters for synchronous reconfiguration of the SpCell of the first cell group, A processing unit that processes the first RRC message, The system includes a transmission unit that transmits a random access preamble using the SpCell based on the reception of a first RRC message, The aforementioned processing unit, If the spCellConfig, which is the setting for the first cell group, includes reconfigurationWithSync, the random access procedure in the SpCell is initiated. If the first RRC message contains information indicating that the first cell group should be deactivated, the random access procedure in the SpCell is not initiated. Terminal device.
- A base station device that communicates with terminal devices, A transmission unit that transmits a first RRC message to the terminal device, which includes parameters for synchronous reconfiguration of the SpCell of the first cell group. The system includes a receiving unit that receives a random access preamble transmitted from a terminal device via the SpCell based on a first RRC message, By including reconfigurationWithSync in spCellConfig, which is the setting for the first cell group, the terminal device is instructed to start the random access procedure in the SpCell. A base station device that prevents the terminal device from initiating the random access procedure in the SpCell by including information in the first RRC message indicating that the first cell group should be deactivated.
- A method applicable to a base station device that communicates with a terminal device, The steps include sending a first RRC message to the terminal device containing parameters for synchronous reconfiguration of the SpCell of the first cell group, The process includes the step of receiving a random access preamble transmitted from a terminal device to the SpCell based on a first RRC message, If the spCellConfig, which is the setting for the first cell group, includes reconfigurationWithSync, the random access procedure in the SpCell is initiated. If the first RRC message contains information indicating that the first cell group should be deactivated, the random access procedure in the SpCell is not initiated. method.
Description
The present invention relates to terminal equipment, base station equipment, and methods. This application claims priority with respect to Japanese Patent Application No. 2020-173018, filed in Japan on October 14, 2020, and the contents of that application are incorporated herein by reference. The 3rd Generation Partnership Project (3GPP), a standardization project for cellular mobile communication systems, is conducting technical studies and developing standards for cellular mobile communication systems, including wireless access, core networks, and services. For example, E-UTRA (Evolved Universal LTE Radio Access) was initiated by 3GPP as a Radio Access Technology (RAT) for 3.9th and 4th generation cellular mobile communication systems, with technical review and standards development already underway. Currently, 3GPP is also reviewing and developing standards for extensions to E-UTRA. E-UTRA is also known as Long Term Evolution (LTE: registered trademark), and its extensions are sometimes referred to as LTE-Advanced (LTE-A) and LTE-Advanced Pro (LTE-A Pro). Furthermore, NR (New Radio, or NR Radio Access) has been initiated by 3GPP as a Radio Access Technology (RAT) for 5th Generation (5G) cellular mobile communication systems, with technical review and standards development already underway. Currently, 3GPP is also conducting technical reviews and standards development for extensions of NR. 3GPP TS 38.300v 16.2.0,"NR;NR and NG-RAN Overall description; Stage 2" pp10-1343GPP TS 36.300 v16.2.0,"Evolved Universal Terrestrial Radio Access (E-UTRA)and Evolved Universal Terrestrial Radio Access Network (E-UTRAN);Overall description; Stage 2" pp19-3613GPP TS 38.331 v16.2.0,"NR;Radio Resource Control (RRC);Protocol specifications"pp21-8613GPP TS 36.331 v16.1.0,"Evolved Universal Terrestrial Radio Access (E-UTRA);Radio Resource Control (RRC);Protocol specifications" pp25-10123GPP TS 37.340 v16.2.0,"EvolvedUniversal Terrestrial Radio Access (E-UTRA)and NR; Multi-Connectivity; Stage 2" pp6-673GPP TS 38.321 v16.1.0, "NR;Medium Access Control (MAC) protocol specification" pp8-148 A schematic diagram of a communication system according to an embodiment of the present invention.A diagram showing an example of the E-UTRA protocol configuration according to an embodiment of the present invention.A diagram showing an example of the NR protocol configuration according to the present invention.A diagram showing an example of a procedure flow for various settings in an RRC according to an embodiment of the present invention.A block diagram showing the configuration of a terminal device in an embodiment of the present invention.A block diagram showing the configuration of a base station device in an embodiment of the present invention.An example of an ASN.1 description included in a message regarding the reconfiguration of the RRC connection in NR in an embodiment of the present invention.An example of an ASN.1 description included in a message regarding the reconfiguration of the RRC connection in E-UTRA in an embodiment of the present invention.An example of the ASN.1 description for the RRC reset message in an embodiment of the present invention.An example of ASN.1 description of a cell group setting information element in an embodiment of the present invention.An example of an ASN.1 description of SpCell settings in an embodiment of the present invention.An example of ASN.1 description for a synchronized reset information element in an embodiment of the present invention.An example of ASN.1 description of a ServingCellConfigCommon information element in an embodiment of the present invention.An example of ASN.1 description of SCell configuration information elements in an embodiment of the present invention.An example of processing by a terminal device in an embodiment of the present invention. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. LTE (and LTE-A, LTE-A Pro) and NR may be defined as different Radio Access Technologies (RATs). NR may also be defined as a technology included in LTE. Furthermore, LTE that can connect with NR via Multi Radio Dual connectivity (MR-DC) may be distinguished from conventional LTE. Furthermore, LTE using 5GC in the core network may be distinguished from conventional LTE using EPC in the core network. Conventional LTE may refer to LTE that does not implement technologies standardized in 3GPP Release 15 or later. Embodiments of the present invention may be applied to NR, LTE, and other RATs. The following description uses terms related to LTE and NR, but embodiments of the present invention may be applied to other technologies using other terms. Also, the term E-UTRA in embodiments of the present invention may be replaced with the term LTE, and the term LTE may be replaced with the term E-UTRA. In the embodiments of the present invention, the names of each node and entity, and the processing at each node and entity, will be descri