CN-122003923-A - Terminal, wireless communication method and base station

Abstract

The terminal according to one aspect of the present disclosure includes a receiving unit that receives a signal common to a plurality of operators, and a control unit that controls reception of information specific to one operator among one piece of system information among a plurality of pieces of system information transmitted in one band.

Inventors

• SHIBAIKE NAOYA
• NAGATA AKIRA

Assignees

• 株式会社NTT都科摩

Dates

Publication Date

20260508

Application Date

20230816

Claims (6)

1. 1. A terminal, comprising: a receiving unit for receiving signals common to a plurality of operators, and And a control unit that controls reception of information specific to one operator among one of the plurality of system information transmitted in one band.
2. 2. The terminal of claim 1, wherein, The signal and the plurality of system information are transmitted in at least one of a specific frequency range, an authorized band and an unauthorized band.
3. 3. The terminal of claim 1, wherein, The control unit decides the maximum number of the plurality of operators based on at least one of the information defined in the specification and the received information.
4. 4. The terminal of claim 1, wherein, The plurality of system information is multiplexed by at least one of time division multiplexing, frequency division multiplexing, and space division multiplexing.
5. 5. A wireless communication method for a terminal includes: a step of receiving a signal common to a plurality of operators, and Controlling the reception of information specific to an operator in one system information among a plurality of system information transmitted in one band.
6. 6. A base station, comprising: a transmitting unit for transmitting signals common to a plurality of operators, and And a control unit that controls transmission of information specific to one operator among one of the plurality of system information transmitted in one band.

Description

Terminal, wireless communication method and base station Technical Field The present disclosure relates to a terminal, a wireless communication method, and a base station in a next generation mobile communication system. Background In a universal mobile telecommunications system (Universal Mobile Telecommunications System (UMTS)) network, long term evolution (Long Term Evolution (LTE)) is standardized for the purpose of further high-speed data rates, low latency, and the like (non-patent document 1). Further, for the purpose of further large capacity, advanced evolution, and the like of LTE (Third Generation Partnership Project (3 GPP (registered trademark)) Release (rel.)) versions 8 and 9, LTE-Advanced (3 GPP rel.10-14) has been standardized. Subsequent systems of LTE (e.g., also referred to as fifth generation mobile communication system (5 th generation mobile communication system (5G)), 5g+ (plus), sixth generation mobile communication system (6 th generation mobile communication system (6G)), new Radio (NR)), 3gpp rel.15 later, and the like are also being studied. Prior art literature Non-patent literature Non-patent document 1：3GPP TS 36.300 V8.12.0 "Evolved Universal Terrestrial Radio Access （E-UTRA） and Evolved Universal Terrestrial Radio Access Network （E-UTRAN）; Overall description; Stage 2 （Release 8）",2010, month 4 Disclosure of Invention Problems to be solved by the invention In future wireless communication systems, a situation in which a site (site) is shared by a plurality of operators (operators) is being studied. However, there has been no adequate study on how multiple operators share resources for initial access. If such studies are insufficient, there is a concern that communication quality/communication throughput may be degraded. It is, therefore, one of the objects of the present disclosure to provide a terminal, a wireless communication method, and a base station that appropriately determine resources for initial access. Means for solving the problems The terminal according to one aspect of the present disclosure includes a receiving unit that receives a signal common to a plurality of operators, and a control unit that controls reception of information specific to one operator among one piece of system information among a plurality of pieces of system information transmitted in one band. Effects of the invention According to an aspect of the present disclosure, resources for initial access can be appropriately determined. Drawings Fig. 1A and 1B show an example of resource allocation of a plurality of MNOs in spectrum sharing. Fig. 2A to 2C show an example of a spectrum sharing scenario. Fig. 3A to 3C show an example of a method for determining the resource of the partial system information. Fig. 4A and 4B show an example of a relationship between the resources of the common signal/channel and the resources of the partial system information. Fig. 5A to 5C show an example of multiplexing of a plurality of pieces of system information corresponding to a plurality of MNOs, respectively. Fig. 6 is a diagram showing an example of a schematic configuration of a radio communication system according to an embodiment. Fig. 7 is a diagram showing an example of a configuration of a base station according to an embodiment. Fig. 8 is a diagram showing an example of a configuration of a user terminal according to an embodiment. Fig. 9 is a diagram showing an example of a hardware configuration of a base station and a user terminal according to an embodiment. Fig. 10 is a diagram showing an example of a vehicle according to an embodiment. Detailed Description (Initial Access procedure) In the initial access procedure, the UE (rrc_idle mode) receives SS/PBCH blocks (SSB), transmission of msg.1 (PRACH/random access preamble/preamble), reception of msg.2 (PDCCH, PDSCH including random access acknowledgement (random access response (RAR)), transmission of msg.3 (PUSCH scheduled by RAR UL grant), reception of msg.4 (PDCCH, PDSCH including UE contention resolution identifier (UE contention resolution identity)). Thereafter, an ACK for msg.4 is sent from the UE through the base station (network), and an RRC connection is established (rrc_connected mode). The SSB reception includes PSS detection, SSS detection, PBCH-DMRS detection and PBCH reception. The PSS detection performs detection of a part of the Physical Cell ID (PCI), detection of OFDM symbol timing (synchronization), and (coarse) frequency synchronization. SSS detection involves detection of a physical cell ID. The PBCH-DMRS detection includes detection of (a portion of) SSB indexes within a semi-radio frame (5 ms). The PBCH reception includes detection of a system frame number (SYSTEM FRAME number (SFN)) and a radio frame timing (SSB index), reception of setting information for reception of remaining minimum system information (REMAINING MINIMUM SYSTEM INFORMATION) (RMSI, SIB 1), and identification of whether or not the UE can camp (camp) on