TERMINAL DEVICE, BASE STATION DEVICE, INTEGRATED CIRCUIT, AND COMMUNICATION METHOD

• US 20180278378A1
• Filed: 04/08/2016
• Published: 09/27/2018
• Est. Priority Date: 04/24/2015
• 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: SUZUKI, SHOICHI, AIBA, TATSUSHI, YOKOMAKURA, KAZUNARI, TAKAHASHI, HIROKI
• Granted Patent: US 10,756,854 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1822 involving configuration of automatic repeat request [ARQ] with parallel processes
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access

Abstract

Provided is a terminal device that receives RRC layer information indicating an asynchronous HARQ for a secondary cell, and a first random access response, which is a random access response including fields for indicating an uplink grant and a Temporary C-RNTI and is related to a non-contention based random access procedure on the secondary cell, that manages multiple HARQ processes, and that delivers the uplink grant to an HARQ process that instructs the transmission unit to transmit the MAC layer data in accordance with the uplink grant. In a case that the RRC layer information indicating the asynchronous HARQ is configured, a HARQ process in which the uplink grant included in the first random access response is delivered is determined based on the value of a field for indicating the Temporary C-RNTI included in the first random access response.

Claims

1-30. -30. (canceled)

31. A terminal device comprising:

reception circuity configured to and/or programmed to perform a reception of an uplink grant included in a control channel or a random access response; and

transmission circuitry configured to and/or programmed to perform a transmission based on the uplink grant;

wherein, the control channel includes hybrid automatic repeat request (HARQ) information,

in asynchronous HARQ, a HARQ process which corresponds to the transmission is associated with a HARQ process identifier (ID) which is included in the HARQ information except in a case where the uplink grant is included in the random access response, and

for the transmission associated with the uplink grant included in the random access response, a HARQ process s used.

32. A base station device comprising:

transmission circuity configured to and/or programmed to perform a transmission of an uplink grant included in a control channel or a random access response; and

reception circuitry configured to and/or programmed to perform a reception based on the uplink grant,

wherein, the control channel includes hybrid automatic repeat request (HARQ) information,

in asynchronous HARQ, a HARQ process which corresponds to the transmission is associated with a HARQ process identifier (ID) which is included in the HARQ information except in a case where the uplink grant is included in the random access response, and

for the transmission associated with the uplink grant included in the random access response, a HARQ process ID is used.

33. A communication method for terminal device, the communication method comprising:

performing a reception of an uplink grant included in a control channel or a random access response; and

performing a transmission based on the uplink grant;

wherein, the control channel includes hybrid automatic repeat request (HARQ) information,

in asynchronous HARQ, a HARQ process which corresponds to the transmission is associated with a HARQ process identifier (ID) which is included in the HARQ information except in a case where the uplink grant is included in the random access response, and

for the transmission associated with the uplink grant included in the random access response, a HARQ process ID is used.

34. A communication method for base station device, the communication method comprising:

performing a transmission of an uplink grant included in a control channel or a random access response; and

performing a reception based on the uplink grant,

wherein, the control channel includes hybrid automatic repeat request (HARQ) information,

in asynchronous HARQ, a HARQ process which corresponds to the transmission is associated with a HARQ process identifier (ID) which is included in the HARQ information except in a case where the uplink grant is included in the random access response, and

for the transmission associated with the uplink grant included in the random access response, a HARQ process ID is used.