Mobile terminal apparatus, base station apparatus and communication control method

• US 10,615,947 B2
• Filed: 11/29/2017
• Issued: 04/07/2020
• Est. Priority Date: 02/18/2011
• Status: Active Grant

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Kishiyama, Yoshihisa
• Primary Examiner(s): Agosta, Stephen M D
• Application Number:
  US15/825,780
• Publication Number:
  US 20180083761A1
• Time in Patent Office: 860 Days
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0028 Variable division signaling therefor H04L5/0092
• CPC Class Codes: H04L 5/0042 intra-user or intra-terminal allocation
• CPC Class Codes: H04L 5/0087 when data requirements change
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/143 for modulated signals H04L5/1469 takes precedence
• CPC Class Codes: H04L 5/1453 of modulation type
• CPC Class Codes: H04L 5/16 Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission

Abstract

A user apparatus includes a transmission/reception circuit that transmits an uplink signal and receives a downlink signal; and a control circuit that switches to transmitting, as the uplink signal, an uplink control signal or a random access channel signal within a time interval configured of a plurality of symbols, after a given interval that is provided to prevent transmission of the uplink signal and reception of the downlink signal from overlapping each other within the time interval, by using a format in which first several symbols are blanked in the time interval.

Claims

1. A terminal comprising:

a control circuit that when a transmission of an uplink signal and a reception of a download signal overlap each other within a time interval configured of a plurality of symbols, controls to transmit, as the uplink signal, an uplink control signal or a random access channel signal within the time interval, after a given interval that is provided to prevent transmission of the uplink signal and reception of the downlink signal from overlapping each other within the time interval, by using a format in which first several symbols are blanked in the time interval, in accordance with an instruction from a base station apparatus; and

a transmission/reception circuit that receives the downlink signal in the time interval and transmits the uplink signal after the given interval within the time interval.

2. The terminal according to claim 1, wherein the control circuit controls to receive a downlink control signal at a beginning of the time interval.

3. The terminal according to claim 1, wherein the uplink control signal is a PUCCH (Physical Uplink Control Channel) signal and the random access channel signal is a PRACH (Physical Random Access Channel) signal.

4. A communication control method for a terminal, comprising:

when a transmission of an uplink signal and a reception of a downlink signal overlap each other within a time interval configured of a plurality of symbols, controlling to transmit, as the uplink signal, an uplink control signal or a random access channel signal within the time interval, after a given interval that is provided to prevent transmission of the uplink signal and reception of the downlink signal from overlapping each other within the time interval, by using a format in which first several symbols are blanked in the time interval, in accordance with an instruction from a base station apparatus; and

receiving the download link signal in the time interval and transmitting the uplink signal after the given interval within the time interval.