Communication apparatus and communication method

• US 9,913,160 B2
• Filed: 02/04/2016
• Issued: 03/06/2018
• Est. Priority Date: 09/06/2007
• 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: Aiba, Tatsushi, Yamada, Shohei, Katsuragawa, Hiroshi
• Primary Examiner(s): Cattungal, Ajay
• Application Number:
  US15/015,838
• Publication Number:
  US 20160157121A1
• Time in Patent Office: 761 Days
• CPC Class Codes: H04B 17/24 with feedback of measurements to the transmitter
• CPC Class Codes: H04L 1/0001 Systems modifying transmission characteristics according to link quality, e.g. power backoff adaptive data allocation for multicarrier modulation H04L5/0044; controlling transmission power for radio systems H04W52/04
• CPC Class Codes: H04L 25/022 of frequency response
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

A MS transmits, to a BS, uplink data (UD) on a PUSCH, PUSCH being assigned by using a PDCCH. The MS receives on PDCCH, an indication instructing the MS to transmit reception quality information (RQI) without UD on PUSCH, and transmits on PUSCH, to the BS, RQI without UD based on the indication which is received on PDCCH. The indication is specified based on values to which a plurality of fields of information transmitted on PDCCH are set. One of the plurality of fields is a field used for instructing the MS to transmit RQI and another is a field used for indicating a redundancy version. For instructing the MS to transmit RQI without UD on PUSCH, the field used for instructing the MS to transmit RQI is set to a first single predetermined value (SPV) and the field used for indicating the redundancy version is set to a second SPV.

Claims

1. A base station apparatus which assigns, to a mobile station apparatus, a physical uplink shared channel by using a physical downlink control channel, the physical uplink shared channel being used for transmitting uplink data, the base station apparatus comprising:

a transmitter which is configured to transmit on the physical downlink control channel, to the mobile station apparatus, an indication instructing the mobile station apparatus to transmit reception quality information without the uplink data on the physical uplink shared channel assigned by using the physical downlink control channel, wherein

the indication is specified based on values to which a plurality of fields of information transmitted on the physical downlink control channel are set,

one of the plurality of fields is a field used for instructing the mobile station apparatus to transmit the reception quality information and another is a field used for indicating a redundancy version, and

for instructing the mobile station apparatus to transmit the reception quality information without the uplink data on the physical uplink shared channel, the field used for instructing the mobile station apparatus to transmit the reception quality information is set to a first single predetermined value and the field used for indicating the redundancy version is set to a second single predetermined value.

2. A mobile station apparatus which transmits, to a base station apparatus, uplink data on a physical uplink shared channel, the physical uplink shared channel being assigned by using a physical downlink control channel, the mobile station apparatus comprising:

a receiver which is configured to receive on the physical downlink control channel, from the base station apparatus, an indication instructing the mobile station apparatus to transmit reception quality information without the uplink data on the physical uplink shared channel, and

a transmitter which is configured to transmit on the physical uplink shared channel, to the base station apparatus, the reception quality information without the uplink data based on the indication which is received on the physical downlink control channel, wherein

the indication is specified based on values to which a plurality of fields of information transmitted on the physical downlink control channel are set,

one of the plurality of fields is a field used for instructing the mobile station apparatus to transmit the reception quality information and another is a field used for indicating a redundancy version, and

for instructing the mobile station apparatus to transmit the reception quality information without the uplink data on the physical uplink shared channel, the field used for instructing the mobile station apparatus to transmit the reception quality information is set to a first single predetermined value and the field used for indicating the redundancy version is set to a second single predetermined value.

3. A communication method of a base station apparatus which assigns, to a mobile station apparatus, a physical uplink shared channel by using a physical downlink control channel, the physical uplink shared channel being used for transmitting uplink data, the communication method comprising:

transmitting, by the base station apparatus, on the physical downlink control channel, to the mobile station apparatus, an indication instructing the mobile station apparatus to transmit reception quality information without the uplink data on the physical uplink shared channel assigned by using the physical downlink control channel, wherein

the indication is specified based on values to which a plurality of fields of information transmitted on the physical downlink control channel are set,

one of the plurality of fields is a field used for instructing the mobile station apparatus to transmit the reception quality information and another is a field used for indicating a redundancy version, and

for instructing the mobile station apparatus to transmit the reception quality information without the uplink data on the physical uplink shared channel, the field used for instructing the mobile station apparatus to transmit the reception quality information is set to a first single predetermined value and the field used for indicating the redundancy version is set to a second single predetermined value.

4. A communication method of a mobile station apparatus which transmits, to a base station apparatus, uplink data on a physical uplink shared channel, the physical uplink shared channel being assigned by using a physical downlink control channel, the communication method comprising:

receiving, by the mobile station apparatus, on the physical downlink control channel, from the base station apparatus, an indication instructing the mobile station apparatus to transmit reception quality information without the uplink data on the physical uplink shared channel, and

transmitting on the physical uplink shared channel, to the base station apparatus, the reception quality information without the uplink data based on the indication which is received on the physical downlink control channel, wherein

the indication is specified based on values to which a plurality of fields of information transmitted on the physical downlink control channel are set,

one of the plurality of fields is a field used for instructing the mobile station apparatus to transmit the reception quality information and another is a field used for indicating a redundancy version, and

for instructing the mobile station apparatus to transmit the reception quality information without the uplink data on the physical uplink shared channel, the field used for instructing the mobile station apparatus to transmit the reception quality information is set to a first single predetermined value and the field used for indicating the redundancy version is set to a second single predetermined value.