Control channel signaling using a common signaling field for transport format and redundancy version
DC CAFC
First Claim
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1. A mobile terminal for use in a mobile communication system, the mobile terminal comprising:
- a receiver unit for receiving a sub-frame of physical radio resources comprising a control channel signal destined to the mobile terminal,a processing unit for determining based on the received control channel signal a transport format of and a redundancy version for an initial transmission or a retransmission of a protocol data unit conveying user data, anda transmitter unit for transmitting the protocol data unit on at least one physical radio resource using the transport format and the redundancy version of the protocol data unit indicated in the received control channel signal,wherein the control channel signal received within said sub-frame comprises a control information field, in which the transport format and the redundancy version of the protocol data unit are jointly encoded,wherein the processing unit is further configured for the determination of the control information field, which consists of a number of bits representing a range of values that can be represented in the control information field, wherein a first subset of the values is reserved for indicating the transport format of the protocol data unit and a second subset of the values, different from the first subset of the values, is reserved for indicating the redundancy version for transmitting the user data, andwherein the first subset of the values contains more values than the second subset of the values.
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Abstract
The invention relates to a method for providing control signalling associated to a protocol data unit conveying user data in a mobile communication system and to the control channel signal itself. Furthermore, the invention also provides a mobile station and a base station and their respective operation in view of the newly defined control channel signals defined herein. In order to reduce the control channel overhead, the invention suggests defining a common field for the transport format and redundancy version in the control channel information format. According to one approach, the common field is used to jointly encode transport format and redundancy version therein. According to another aspect, one shared field is provided on the control channel signal that indicates either a transport format or a redundancy version depending of whether the control channel signal relates to an initial transmission or a retransmission. In another embodiment, further enhancements to a HARQ protocol are suggested for addressing certain error cases.
18 Citations
35 Claims
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1. A mobile terminal for use in a mobile communication system, the mobile terminal comprising:
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a receiver unit for receiving a sub-frame of physical radio resources comprising a control channel signal destined to the mobile terminal, a processing unit for determining based on the received control channel signal a transport format of and a redundancy version for an initial transmission or a retransmission of a protocol data unit conveying user data, and a transmitter unit for transmitting the protocol data unit on at least one physical radio resource using the transport format and the redundancy version of the protocol data unit indicated in the received control channel signal, wherein the control channel signal received within said sub-frame comprises a control information field, in which the transport format and the redundancy version of the protocol data unit are jointly encoded, wherein the processing unit is further configured for the determination of the control information field, which consists of a number of bits representing a range of values that can be represented in the control information field, wherein a first subset of the values is reserved for indicating the transport format of the protocol data unit and a second subset of the values, different from the first subset of the values, is reserved for indicating the redundancy version for transmitting the user data, and wherein the first subset of the values contains more values than the second subset of the values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for use in a mobile communication system, the method comprising the following steps performed by a mobile terminal:
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receiving a sub-frame of physical radio resources comprising a control channel signal destined to the mobile terminal, determining based on the received control channel signal a transport format of and a redundancy version for an initial transmission or a retransmission a protocol data unit conveying user data, and transmitting the protocol data unit on at least one physical radio resource using the transport format and the redundancy version of the protocol data unit indicated in the received control channel signal, wherein the control channel signal received within said sub-frame comprises a control information field, in which the transport format and the redundancy version of the protocol data unit are jointly encoded, wherein the control information field consists of a number of bits representing a range of values that can be represented in the control information field, wherein a first subset of the values is reserved for indicating the transport format of the protocol data unit and a second subset of the values, different from the first subset of the values, is reserved for indicating the redundancy version for transmitting the user data, and wherein the first subset of the values contains more values than the second subset of the values. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A base station for use in a mobile communication system, the base station comprising:
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a transmitter unit for transmitting a sub-frame of physical radio resources comprising a control channel signal to a mobile terminal, the control channel signal indicating a transport format of and a redundancy version for an initial transmission or a retransmission of a protocol data unit conveying user data for use in an uplink transmission from the mobile terminal, and a receiver unit for receiving the uplink transmission of the protocol data unit from the mobile terminal on at least one physical radio resource using the transport format and the redundancy version indicated in the control channel signal, wherein the control channel signal transmitted within said sub-frame comprises a control information field, in which the transport format and the redundancy version of the protocol data unit are jointly encoded, wherein the control information field consists of a number of bits representing a range of values that can be represented in the control information field, wherein a first subset of the values is reserved for indicating the transport format used for the uplink transmission of the protocol data unit and a second subset of the values, different from the first subset of the values, is reserved for indicating the redundancy version used for the uplink transmission of the protocol data unit, and wherein the first subset of the values contains more values than the second subset of the values. - View Dependent Claims (31, 32, 33, 34, 35)
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Specification
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Litigation Data
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Current AssigneeOptis Wireless Technology, LLC (Brevet Capital)
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Original AssigneePanasonic Corporation (Panasonic Holdings Corporation)
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InventorsSuzuki, Hidetoshi, Loehr, Joachim, Hiramatsu, Katsuhiko, Wengerter, Christian, Nishio, Akihiko
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Primary Examiner(s)ABELSON, RONALD B
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Application NumberUS12/809,423Publication NumberTime in Patent Office1,531 DaysField of Search370/328, 370/329, 714/748, 714/750US Class Current370/329CPC Class CodesH04L 1/0079 Formats for control data H0...H04L 1/1607 Details of the supervisory ...H04L 1/1812 Hybrid protocols; Hybrid au...H04L 1/1893 Physical mapping arrangemen...H04L 1/1896 ARQ related signalingH04W 72/21 in the uplink direction of ...H04W 72/23 in the downlink direction o...
