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User terminal and wireless communication method

A technology of user terminal and shared channel, applied in the field of user terminal and wireless communication

Active Publication Date: 2021-10-08
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The system band is, for example, equivalent to the existing LTE band (20MHz), component carrier, etc.

Method used

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  • User terminal and wireless communication method
  • User terminal and wireless communication method
  • User terminal and wireless communication method

Examples

Experimental program
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Embodiment Construction

[0027] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0028] In order to reduce the cost of MTC terminals, it has been studied to suppress the processing capability of terminals by reducing the peak rate, limiting resource blocks, and receiving RF (radio frequency (radio frequency)) limitations. For example, in order to reduce the cost of MTC terminals, the following restrictions have been studied. In unicast transmission using a physical downlink shared channel (PDSCH: physical downlink shared channel), the maximum transport block size is limited to 1000 bits. In broadcast channel (BCCH: broadcast control channel) transmission using the PDSCH, the maximum transport block size is limited to 2216 bits. The bandwidth of the downlink data channel is limited to 6 resource blocks (PRB: physical resource block). The receiving RF in the MTC terminal is limited to 1.

[0029] Since the low-cost MTC terminals are limit...

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Abstract

Even when the use band is limited to a narrow part of the system band, reception of a plurality of channels is appropriately performed. A user terminal that uses a narrow band that is limited to a part of the system band has: a receiving unit that receives broadcast transport blocks and unicast transport blocks; and a control unit that switches the transport blocks to be received according to the RRC state of the terminal, and receives When the unit receives both the broadcast transport block and the unicast transport block, the control unit controls to receive the unicast transport block based on the priority defined in advance if the own terminal is in the RRC connection state.

Description

technical field [0001] The invention relates to a user terminal and a wireless communication method in the next generation mobile communication system. Background technique [0002] In the UMTS (universal mobile telecommunications system) network, long term evolution (LTE: long termevolution) is standardized for the purpose of further high-speed data rate, low delay, etc. (Non-Patent Document 1). LTE-advanced has been standardized for the purpose of widening the broadband domain and increasing the speed from LTE, and further studies have been conducted on the successor system of LTE, for example, called FRA (future radio access). [0003] In recent years, along with the reduction in cost of communication devices, the development of technology for device-to-device communication (M2M: machine-to-machine) in which devices connected to a network communicate with each other and automatically control them without human hands has been actively developed. In particular, regarding 3...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/02H04W4/70H04W76/27
CPCH04W72/02H04W4/06H04W72/56H04W72/569H04W74/002H04W76/27H04W28/0268H04W68/005
Inventor 武田和晃刘柳蒋惠玲牟勤
Owner NTT DOCOMO INC