TERMINAL DEVICE, BASE STATION APPARATUS, AND COMMUNICATIONS METHOD

• US 20170280441A1
• Filed: 09/25/2015
• Published: 09/28/2017
• Est. Priority Date: 09/26/2014
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: SHIMEZAWA, Kazuyuki, IMAMURA, Kimihiko, OUCHI, Wataru, KUSASHIMA, Naoki, RUIZ DELGADO, Alvaro, HAYASHI, Takashi
• Application Number:
  US15/506,142
• Publication Number:
  US 20170280441A1
• Time in Patent Office: Days
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/281 taking into account user or data type priority
• CPC Class Codes: H04W 52/325 Power control of control or pilot channels
• CPC Class Codes: H04W 52/40 during macro-diversity or soft handoff
• CPC Class Codes: H04W 52/44 in connection with interruption of transmission
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 76/18 Management of setup rejection or failure
• CPC Class Codes: H04W 76/34 Selective release of ongoing connections
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Provided is a terminal device that communicates with a base station apparatus using a first cell group and a second cell group. The terminal device includes a higher-layer processing unit that sets guarantee power in the first cell group and guarantee power in the second cell group. In a case where a radio link failure occurs in a serving cell belonging to the second cell group, the guarantee power in the first cell group and/or the guarantee power in the second cell group are changed.

Claims

1. A terminal device that communicates with a base station apparatus, comprising:

a higher layer processing unit that configures a first cell group and a second cell group; and

an uplink sub-frame generation unit forming a physical uplink channel in the first cell group that overlaps the second cell group in a certain sub-frame,

wherein in a case where a Radio Link Failure (RLF) is detected in the second cell group, the higher layer processing unit performs prescribed processing to the physical uplink channel in the second cell group.

2. The terminal device according to claim 1,

wherein the prescribed processing releases settings in the second cell group.

3. The terminal device according to claim 1,

wherein the prescribed processing makes power of the physical uplink channel 0.

4. A base station apparatus that communicates with a terminal device, comprising:

a higher layer processing unit configured to set a first cell group and a second cell group in the terminal device; and

an uplink sub-frame generation unit generating a physical uplink channel in the first cell group that overlaps the second cell group in a certain sub-frame,

wherein in a case where a Radio Link Failure (RLF) is detected in the second cell group, the higher layer processing unit performs prescribed processing to the physical uplink channel in the second cell group.

5. The base station apparatus according to claim 4,

wherein the prescribed processing releases settings in the second cell group.

6. The base station apparatus according to claim 4,

wherein the prescribed processing makes power of the physical uplink channel 0.

7. A communication method used by a terminal device that communicates with a base station apparatus, the method comprising:

a step of setting a first cell group and a second cell group; and

a step of generating a physical uplink channel in the first cell group that overlaps the second cell group in a certain sub-frame,

wherein in a case where a Radio Link Failure (RLF) is detected in the second cell group, the higher layer processing unit performs prescribed processing to the physical uplink channel in the second cell group.

8. A communication method used by a base station apparatus that communicates with a terminal device, the method comprising:

a step of setting a first cell group and a second cell group in the terminal device; and

a step of generating a physical uplink channel in the first cell group that overlaps the second cell group in a certain sub-frame,

wherein in a case where a Radio Link Failure (RLF) is detected in the second cell group, the higher layer processing unit performs prescribed processing to the physical uplink channel in the second cell group.