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US 10,567,139 B2Granted
Control channel signalling for triggering the independent transmission of a channel quality indicator
AssigneeGodo Kaisha IP Bridge 1
InventorsAlexander Golitschek Edler von Elbwart, Christian Wengerter, Joachim Löhr
Life of this patent
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Abstract
A communication apparatus has a receiver and a transmitter. The receiver, in operation receives a control signal including a Modulation and Coding Scheme (MCS) Index, a channel quality indicator (CQI) trigger and information indicating uplink resource blocks. The transmitter in operation, determines whether to multiplex an aperiodic CQI report with data in an uplink signal based on the MCS Index, the channel quality indicator trigger, the information indicating uplink resource blocks, and a threshold number of resource blocks, and transmits the uplink signal.
Claims22
A method for providing control signaling in a communication system, comprising the following steps performed by a base station of the communication system:
- generating a control channel signal comprising a transport format and a channel quality indicator trigger signal for triggering a transmission of a channel quality indicator by at least one terminal to the base station, and
- transmitting the generated control channel signal to at least one terminal,
- wherein said transport format is a predetermined format for user data transmission by the at least one terminal to the base station and said control channel signal indicates a predetermined mode for reporting the channel quality indicator to the base station, wherein the channel quality indicator transmission is to be triggered by the at least one terminal based on the channel quality indicator trigger signal, wherein the control channel signal contains information on resource blocks used for the transmission from the at least one terminal to the base station, and the transmission of the channel quality indicator using the predetermined mode is to be triggered only in case said information on the resource blocks indicates a number of resource blocks that is smaller or equal to a predetermined resource block number.
A method for use in a communication system, said method comprising the following steps performed by a terminal of the communication system:
- receiving, from a base station of the communication system, a frame of physical radio resources comprising a control channel signal destined to the terminal,
- wherein the control channel signal comprises a predetermined transport format and a channel quality indicator trigger signal for triggering a transmission of a channel quality indicator by the terminal to the base station, wherein said transport format is a predetermined format for user data transmission by the terminal to the base station and said control channel signal indicates a predetermined mode for reporting the channel quality indicator to the base station,
- said method further comprising transmitting a channel quality indicator to the base station using the indicated predetermined mode, wherein the channel quality indicator transmission is triggered based on the channel quality indicator trigger signal, wherein the control channel signal contains information on resource blocks used for the transmission from the terminal to the base station, and the transmission of the channel quality indicator using the predetermined mode is to be triggered only in case said information on the resource blocks indicates a number of resource blocks that is smaller or equal to a predetermined resource block number.
A base station, comprising:
- generating means for generating a control channel signal comprising a transport format and a channel quality indicator trigger signal for triggering a transmission of a channel quality indicator by at least one terminal to the base station, and
- transmitting means for transmitting the generated control channel signal to at least one terminal,
- wherein said transport format is a predetermined format for user data transmission by the at least one terminal to the base station and said control channel signal indicates a predetermined mode for reporting the channel quality indicator to the base station, wherein the channel quality indicator transmission is to be triggered by the at least one terminal based on the channel quality indicator trigger signal, wherein the control channel signal contains information on resource blocks used for the transmission from the at least one terminal to the base station, and the transmission of the channel quality indicator using the predetermined mode is to be triggered only in case said information on the resource blocks indicates a number of resource blocks that is smaller or equal to a predetermined resource block number.
A terminal, comprising:
- receiving means for receiving, from a base station, a frame of physical radio resources comprising a control channel signal destined to the terminal,
- wherein the control channel signal comprises a predetermined transport format and a channel quality indicator trigger signal for triggering a transmission of a channel quality indicator by the terminal to the base station, wherein said transport format is a predetermined format for user data transmission by the terminal to the base station and said control channel signal indicates a predetermined mode for reporting the channel quality indicator to the base station,
- said terminal further comprising transmitting means for transmitting a channel quality indicator to the base station using the indicated predetermined mode, wherein the channel quality indicator transmission is triggered based on the channel quality indicator trigger signal, wherein the control channel signal contains information on resource blocks used for the transmission from the terminal to the base station, and the transmission of the channel quality indicator using the predetermined mode is to be triggered only in case said information on the resource blocks indicates a number of resource blocks that is smaller or equal to a predetermined resource block number.
Dependencies are inferred from the claim text.