CN-122029861-A - Terminal, wireless communication method and base station

Abstract

The terminal according to one embodiment of the present disclosure includes a receiving unit that performs measurement of a reference signal related to update of a cell whose physical range is changed, and a control unit that controls operation of the update of the cell based on the measurement. According to one embodiment of the present disclosure, appropriate power control of the network is enabled, and more flexible communication is enabled.

Inventors

• OKUMURA MAMORU
• MATSUMURA YUSUKE
• NAGATA AKIRA

Assignees

• 株式会社NTT都科摩

Dates

Publication Date

20260512

Application Date

20231215

Claims (6)

1. 1. A terminal, comprising: A receiving unit for measuring reference signals related to updating of cells with changed physical range, and And a control unit controlling an operation of updating the cell based on the measurement.
2. 2. The terminal of claim 1, wherein, As the operation, the control unit performs a random access procedure for the cell of the update destination.
3. 3. The terminal of claim 1, wherein, As the operation, the control unit performs update or reset of RRC settings, which are radio resource control settings related to cells before update.
4. 4. The terminal of claim 1, wherein, The control unit determines, based on the reference signal, either occurrence of update of the cell or occurrence of beam failure.
5. 5. A wireless communication method for a terminal includes: a step of measuring a reference signal related to updating of a cell whose physical range is changed, and And controlling an operation of updating the cell based on the measurement.
6. 6. A base station, comprising: a transmitting unit for transmitting a reference signal related to the update of the cell whose physical range is changed, and A control unit that indicates an updated operation of the selected cell based on the measurement.

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, LTE-Advanced (3 GPP rel.10-14) has been standardized for the purpose of further large capacity, high altitude, and the like of LTE (third generation partnership project (Third Generation Partnership Project (3 GPP (registered trademark)) Release (rel.)) versions 8 and 9. 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 and so on) have also been 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 (e.g., rel.20 and later), terminals (User terminals) and User Equipments (UEs)) are being studied to communicate using a Cell-free (Cell-free) communication system that uses a unit smaller than an existing Cell. However, specific studies for cell-free communication are insufficient. If the study is insufficient, control of the Network (NW) according to the communication traffic or the like cannot be performed, and there is a concern that improvement in communication throughput is suppressed. Accordingly, an object of the present disclosure is to provide a terminal, a wireless communication method, and a base station capable of performing appropriate power control of a network and performing more flexible communication. Means for solving the problems The terminal according to one embodiment of the present disclosure includes a receiving unit that performs measurement of a reference signal related to update of a cell whose physical range is changed, and a control unit that controls operation of the update of the cell based on the measurement. Effects of the invention According to one embodiment of the present disclosure, appropriate power control of the network is enabled, and more flexible communication is enabled. Drawings Fig. 1 is a diagram showing an example of beam recovery procedure in rel.15 NR. Fig. 2A and 2B are diagrams showing an outline of MIMO. Fig. 3A is a diagram showing an outline of a cellular system. Fig. 3B is a diagram showing an outline of a cell-free system. Fig. 4A to 4C are diagrams showing an example of an outline of each concept of a cell-free structure. Fig. 5 is a diagram showing an example of a change accompanying a change of the second cell. Fig. 6 is a diagram showing an example of a pattern of 1 PCI component (PCI module). Fig. 7A to 7E are diagrams showing an example of the structure of the first cell. Fig. 8 is a diagram showing an example of a pattern of 1-region structural elements (region modules). Fig. 9A is a diagram showing an example of the configuration of the first/second cell according to option 1-1. Fig. 9B is a diagram showing an example of the configuration of the first/second cell according to option 1-2. Fig. 10A is a diagram showing an example of the configuration of the first/second cell according to option 2/4-1. Fig. 10B is a diagram showing an example of the configuration of the first/second cell according to option 2/4-2. Fig. 11A is a diagram showing an example of the configuration of the first/second cell according to option 3/5-1. Fig. 11B is a diagram showing an example of the configuration of the first/second cell according to option 3/5-2. Fig. 12 is a diagram showing an example of a modification of the configuration of the second cell. Fig. 13A to 13C are diagrams showing an example of the configuration of the second cell according to options 0 to 3. Fig. 14A and 14B are diagrams showing an example of a connection structure using a second cell. Fig. 15A is a diagram illustrating an example of setting of the first cell and the second cell according to the first embodiment. Fig. 15B is a diagram illustrating an example of handover between the first cell and the second cell according to the first embodiment. Fig. 16A and 16B are diagrams showing an example of resource setting according to the second embodiment. Fig. 17 is a diagram showing an example of a schematic configuration of a radio communication system according to an embodiment. Fig. 18 is a diagram showing an example of a configuration of a b