IP Library › Granted Patent US 11,877,277
Granted Patent B2
US 11,877,277 · App. 16/339,267 · Granted Jan 16, 2024

Terminal device, base station device and method

Inventors: Naoki Kusashima (Kanagawa, JP); Kazuyuki Shimezawa (Kanagawa, JP); Hiromasa Uchiyama (Tokyo, JP); Ryota Kimura (Tokyo, JP); Hiroki Matsuda (Tokyo, JP)
Assignee: SONY CORPORATION
H04W72/1263H04W24/00H04W24/10H04W72/04H04W72/12H04W76/28H04W88/02H04W92/20H04W88/08
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Quick Facts
Patent No.
US 11,877,277
App. No.
16/339,267
Granted
Jan 16, 2024
Kind
B2
Abstract

Provided is a terminal device including a measuring unit that performs downlink measurement on the basis of a downlink reference signal, and a transmitting unit that transmits a first uplink reference signal on the basis of first setting related to measurement for radio resource management. The transmitting unit transmits the first uplink reference signal in a case in which a first condition is satisfied, and the measuring unit performs the downlink measurement in a case in which a second condition is satisfied.

Claims (84)

1. A terminal device, comprising:

circuitry configured to:

determine one of a first condition is satisfied or a second condition is satisfied, wherein

the first condition indicates that the terminal device is in a first mobility state,

the first mobility state corresponds to a state in which a number of cell reselections by the terminal device exceeds a first threshold,

the second condition indicates that the terminal device is in a second mobility state, and

the second mobility state corresponds to a state in which the number of cell reselections by the terminal device exceeds a second threshold and is less than the first threshold;

execute downlink measurement based on a downlink reference signal and the determination that the second condition, indicating that the terminal device is in the second mobility state, is satisfied;

determine a third condition is satisfied, wherein the third condition indicates a target frequency resource is deactivated;

transmit a first uplink reference signal based on

the deactivation of the target frequency resource,

a first setting related to measurement for radio resource management, and

the determination that the first condition, indicating that the terminal device is in the first mobility state, is satisfied;

determine a fourth condition is satisfied, wherein the fourth condition indicates the target frequency resource is activated; and

transmit a second uplink reference signal based on

a second setting different from the first setting, and

the activation of the target frequency resource.

2. The terminal device according to claim 1 , wherein

the first condition further indicates the terminal device is in a connection mode, and

the second condition further indicates the terminal device is in one of an idle mode or an inactive mode.

3. The terminal device according to claim 1 , wherein

the third condition further indicates a target time resource is a transmission timing in the first setting,

the fourth condition further indicates the target time resource is a transmission timing in the second setting, and

the transmission timing in the second setting is different from the transmission timing in the first setting.

4. The terminal device according to claim 1 , wherein the circuitry is further configured to transmit, with a specific frequency resource, one of the first uplink reference signal or the second uplink reference signal.

5. A base station device, comprising:

circuitry configured to:

transmit a downlink reference signal;

receive a first uplink reference signal from a terminal device, wherein the terminal device:

determines one of a first condition is satisfied or a second condition is satisfied, wherein

the first condition indicates that the terminal device is in a first mobility state,

the first mobility state corresponds to a state in which a number of cell reselections by the terminal device exceeds a first threshold,

the second condition indicates that the terminal device is in a second mobility state, and

the second mobility state corresponds to a state in which the number of cell reselections by the terminal device exceeds a second threshold and is less than the first threshold,

transmits the first uplink reference signal to the base station device based on the determination that the first condition, indicating that the terminal device is in the first mobility state, is satisfied and a first setting related to measurement for radio resource management,

transmits a second uplink reference signal to the base station device based on a second setting different from the first setting, and

executes downlink measurement based on the downlink reference signal and the determination that the second condition, indicating that the terminal device is in the second mobility state, is satisfied;

determine a third condition is satisfied, wherein the third condition indicates a target frequency resource is deactivated;

execute first uplink measurement based on

the deactivation of the target frequency resource, and

the first uplink reference signal received from the terminal device;

determine a fourth condition is satisfied, wherein the fourth condition indicates the target frequency resource is activated;

receive the second uplink reference signal based on the second setting; and

execute second uplink measurement based on the second uplink reference signal and the activation of the target frequency resource.

6. The base station device according to claim 5 , wherein the circuitry is further configured to:

obtain measurement information based on the first uplink measurement; and

transfer the obtained measurement information to an adjacent base station device.

7. The base station device according to claim 5 , wherein

the first condition further indicates the terminal device is in a connection mode, and

the second condition further indicates the terminal device is in one of an idle mode or an inactive mode.

8. The base station device according to claim 5 , wherein

the third condition further indicates a target time resource is a transmission timing in the first setting,

the fourth condition further indicates the target time resource is a transmission timing in the second setting, and

the transmission timing in the second setting is different from the transmission timing in the first setting.

9. The base station device according to claim 5 , wherein the terminal device further transmits, with a specific frequency resource, one of the first uplink reference signal or the second uplink reference signal.

10. A method executed by a processor, the method comprising:

determining one of a first condition is satisfied or a second condition is satisfied, wherein

the first condition indicates that a terminal device is in a first mobility state,

the first mobility state corresponds to a state in which a number of cell reselections by the terminal device exceeds a first threshold, and

the second condition indicates that the terminal device is in a second mobility state, and

the second mobility state corresponds to a state in which the number of cell reselections by the terminal device exceeds a second threshold and is less than the first threshold;

executing downlink measurement based on a downlink reference signal and the determination that the second condition, indicating that the terminal device is in the second mobility state, is satisfied;

determining a third condition is satisfied, wherein the third condition indicates a target frequency resource is deactivated;

transmitting a first uplink reference signal based on

the deactivation of the target frequency resource,

a first setting related to measurement for radio resource management, and

the determination that the first condition, indicating that the terminal device is in the first mobility state, is satisfied;

determining a fourth condition is satisfied, wherein the fourth condition indicates the target frequency resource is activated; and

transmitting a second uplink reference signal based on

a second setting different from the first setting, and

the activation of the target frequency resource.

11. A method executed by a processor, the method comprising:

transmitting a downlink reference signal to a terminal device for downlink measurement;

receiving a first uplink reference signal from the terminal device based on a satisfaction of a first condition indicating that the terminal device is in a first mobility state that corresponds to a state in which a number of cell reselections by the terminal device exceeds a first threshold, wherein the terminal device:

transmits the first uplink reference signal based on the satisfaction of the first condition and a first setting related to measurement for radio resource management,

transmits a second uplink reference signal based on a second setting different from the first setting, and

executes the downlink measurement based on the downlink reference signal and a satisfaction of a second condition, wherein the second condition indicates that the terminal device is in a second mobility state that corresponds to a state in which the number of cell reselections by the terminal device exceeds a second threshold and is less than the first threshold;

determining a third condition is satisfied, wherein the third condition indicates a target frequency resource is deactivated;

executing first uplink measurement based on

the deactivation of the target frequency resource, and

the first uplink reference signal received from the terminal device;

determining a fourth condition is satisfied, wherein the fourth condition indicates the target frequency resource is activated;

receiving the second uplink reference signal based on the second setting; and

executing second uplink measurement based on the second uplink reference signal and the activation of the target frequency resource.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 30, 2019
From: KUSASHIMA, NAOKI; SHIMEZAWA, KAZUYUKI; UCHIYAMA, HIROMASA; KIMURA, RYOTA; MATSUDA, HIROKI
To: SONY CORPORATION
Reel/Frame 049323/0523 →
Priority Claims (1)
JP 2016-215192 · Nov 2, 2016 · national
Continuity (1)
Related Publication 20190254050A1 · Aug 15, 2019