Mobile station apparatus, method, and processor of the same configuring multiple timers related to multiple cell groups associated with HARQ buffers

• US 10,674,491 B2
• Filed: 12/06/2018
• Issued: 06/02/2020
• Est. Priority Date: 12/17/2010
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Kato, Yasuyuki, Uemura, Katsunari, Nakashima, Daiichiro, Suzuki, Shoichi
• Primary Examiner(s): Aung, Sai
• Application Number:
  US16/211,369
• Publication Number:
  US 20190110289A1
• Time in Patent Office: 544 Days
• CPC Class Codes: H04W 56/0005 synchronizing of arrival of multiple uplinks
• 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 74/0833 Random access procedures, e.g. with 4-step access

Abstract

A mobile station apparatus configures first and second timers related to first and second groups. A first group of cells uses a first uplink transmission timing, and a second group of secondary cells uses a second uplink transmission timing. When the first timer of the first group has expired: all transmission HARQ buffers in association with the cells of the first group are flushed, the second timer is considered as expired, and an uplink transmission on any cells except random access preamble transmission on the primary cell is stopped. In a case where the second timer of the second group has expired: all transmission HARQ buffers in association with the secondary cells of the second group are flushed, and an uplink transmission on any cells in the second group except random access preamble transmission on the any cells in the second group is stopped.

Claims

1. A mobile station apparatus comprising:

a memory and a processor in electrical communication with the memory, the processor executing instructions stored in the memory to;

configure a first timer related to a first group and a second timer related to a second group, wherein a first group of one or more cells uses a first uplink transmission timing, the one or more cells includes a primary cell and zero or more secondary cells, and a second group of one or more secondary cells uses a second uplink transmission timing,

in a case where the first timer of the first group has expired;

all transmission HARQ buffers in association with the one or more cells of the first group are flushed,

the second timer is considered as expired, and

an uplink transmission on any cells except random access preamble transmission on the primary cell is stopped; and

in a case where the second timer of the second group has expired;

all transmission HARQ buffers in association with the one or more secondary cells of the second group are flushed, and

an uplink transmission on any cells in the second group except random access preamble transmission on the any cells in the second group is stopped.

2. A method of a mobile station apparatus comprising:

configuring a first timer related to a first group and a second timer related to a second group, wherein a first group of one or more cells uses a first uplink transmission timing, the one or more cells includes a primary cell and zero or more secondary cells, and a second group of one or more secondary cells uses a second uplink transmission timing,

in a case where the first timer of the first group has expired;

all transmission HARQ buffers in association with the one or more cells of the first group are flushed, the second timer is considered as being expired, and an uplink transmission on any cells except random access preamble transmission on the primary cell is stopped; and

in a case where the second timer of the second group has expired;

all transmission HARQ buffers in association with the one or more secondary cells of the second group are flushed, and an uplink transmission on any cells in the second group except random access preamble transmission on the any cells in the second group is stopped.