CONTROL CHANNEL SIGNALING USING A COMMON SIGNALING FIELD FOR TRANSPORT FORMAT AND REDUNDANCY VERSION

US 20100309870A1
Filed: 12/18/2008
Published: 12/09/2010
Est. Priority Date: 12/20/2007
Status: Active Grant

First Claim

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1-43. -43. (canceled)

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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.

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75 Claims

1-43. -43. (canceled)

44. 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 the transport format of and the redundancy version for the protocol data packet conveying user data, anda transmitter unit for transmitting the protocol data packet on at least one physical radio resource using the transport format and the redundancy version of the protocol data packet indicated in the received control information field,wherein the control channel signal received within said sub-frame comprises a control information field in which a transport format and a redundancy version of a protocol data unit are jointly encoded andin that the control information field consists of a number of bits yielding a range of values that can be represented in the control information field, wherein a first subset of the values is reserved for indicating a transport format of the protocol data unit and a second subset of values is reserved for indicating a redundancy version for transmitting the user data.
- View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
- - 45. The mobile terminal according to claim 44, wherein the first subset of values contains more values than the second subset of values.
  - 46. The mobile terminal according to claim 44, wherein the redundancy version of the protocol data unit is implicit to the transport format indicated by the corresponding value of the first subset.
  - 47. The mobile terminal according to claim 44, wherein the value of the encoded information bits in the control channel field is representing a value of the first subset of values, in case the transmission of the protocol data unit is an initial transmission of the user data.
  - 48. The mobile terminal according to claim 44, wherein the value of the encoded information bits in the control channel field is representing a value of the first subset or the second subset of values, in case the transmission of the protocol data unit is a retransmission of the user data.
  - 49. The mobile terminal according to claim 44, wherein the value of the encoded information bits in the control channel field is representing a value of the second subset of values, in case the transmission of the protocol data unit is a retransmission of the user data.
  - 50. The mobile terminal according to claim 44, wherein the bits of the control information field jointly encode the transport format, a redundancy version used for transmitting the protocol data unit and a new data indicator for indicating whether the transmission of the protocol data unit is an initial transmission of the user data, andwherein use of one of the values of the first subset set also indicates the transmission of the protocol data unit to be an initial transmission.
  - 51. The mobile terminal according to claim 44, wherein the redundancy version to be used for the initial transmission of the user data in the protocol data unit is fixed or preconfigured.
  - 52. The mobile terminal according to claim 44, wherein the control channel signal is further comprising a sequence number field indicating the sequence number of the protocol data unit.
  - 53. The mobile terminal according to claim 44, wherein the control channel signal is further comprising a new data indicator field indicating whether the transmission of the protocol data unit is an initial transmission or a retransmission of the user data.
  - 54. The mobile terminal according to claim 44, wherein the control channel signal further comprises a resource allocation field for indicating the physical radio resource or resources allocated to a receiver for receiving the protocol data unit or the physical radio resource or resources on which a transmitter is to transmit the protocol data unit.
  - 55. The mobile terminal according to claim 44, wherein the control channel signal further comprises a mobile terminal identifier field for indicating the mobile terminal or a group of mobile terminals that are to receive the control channel signal.
  - 56. The mobile terminal according to claim 44, wherein the control channel signal is a L1/L2 control channel signal.
  - 57. The mobile terminal according to claim 44, wherein in case the protocol data packet is a retransmission for the user data, the bits of the control information field include a flag indicating the type of information indicated by the remaining bits of the control information field.

58. A method for use in a mobile communication system, the method comprising the following steps performed by a mobile terminal:
- 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 the transport format of and the redundancy version for the protocol data packet conveying user data, andtransmitting the protocol data packet on at least one physical radio resource using the transport format and the redundancy version of the protocol data packet indicated in the received control information field,wherein the control channel signal received within said sub-frame comprises a control information field in which a transport format and a redundancy version of a protocol data unit are jointly encoded andin that the control information field consists of a number of bits yielding a range of values that can be represented in the control information field, wherein a first subset of the values is reserved for indicating a transport format of the protocol data unit and a second subset of values is reserved for indicating a redundancy version for transmitting the user data.
- View Dependent Claims (59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75)
- - 59. The method according to claim 58, wherein the first subset of values contains more values than the second subset of values.
  - 60. The method according to claim 58, wherein the redundancy version of the protocol data unit is implicit to the transport format indicated by the corresponding value of the first subset.
  - 61. The method according to claim 58, wherein the value of the encoded information bits in the control channel field is representing a value of the first subset of values, in case the transmission of the protocol data unit is an initial transmission of the user data.
  - 62. The method according to claim 59, wherein the value of the encoded information bits in the control channel field is representing a value of the first subset or the second subset of values, in case the transmission of the protocol data unit is a retransmission of the user data.
  - 63. The method according to claim 58, wherein the value of the encoded information bits in the control channel field is representing a value of the second subset of values, in case the transmission of the protocol data unit is a retransmission of the user data.
  - 64. The method according to claim 58, wherein the bits of the control information field jointly encode the transport format, a redundancy version used for transmitting the protocol data unit and a new data indicator for indicating whether the transmission of the protocol data unit is an initial transmission of the user data, andwherein use of one of the values of the first subset set also indicates the transmission of the protocol data unit to be an initial transmission.
  - 65. The method according to claim 58, wherein the redundancy version to be used for the initial transmission of the user data in the protocol data unit is fixed or preconfigured.
  - 66. The method according to claim 58, wherein the control channel signal is further comprising a sequence number field indicating the sequence number of the protocol data unit.
  - 67. The mobile terminal according to claim 58, wherein the control channel signal is further comprising a new data indicator field indicating whether the transmission of the protocol data unit is an initial transmission or a retransmission of the user data.
  - 68. The method according to claim 58, wherein the control channel signal further comprises a resource allocation field for indicating the physical radio resource or resources allocated to a receiver for receiving the protocol data unit or the physical radio resource or resources on which a transmitter is to transmit the protocol data unit.
  - 69. The method according to claim 58, wherein the control channel signal further comprises a mobile terminal identifier field for indicating the mobile terminal or a group of mobile terminals that are to receive the control channel signal.
  - 70. The method according to claim 58, wherein the control channel signal is a L1/L2 control channel signal.
  - 71. The method according to claim 58, wherein in case the protocol data packet is a retransmission for the user data, the bits of the control information field include a flag indicating the type of information indicated by the remaining bits of the control information field.
  - 72. The method according to claim 58, wherein the transport format is a transport block size information of the protocol data unit, and wherein the received control channel signal further comprises a resource allocation field indicating the physical radio resource or resources allocated to the mobile terminal,and in that determining depends on the information comprised in the resource allocation field and the control information field
  - 73. The method according to claim 58, wherein the control channel signal indicates the protocol data packet to be a retransmission of user data and wherein the method further comprises transmitting a positive acknowledgement for the received protocol data packet to the base station, if the control channel signalling associated to the initial transmission for the user data has been missed.
  - 74. The method according to claim 58, further comprising reusing the transport format of the protocol data unit indicated in a control channel signal for the initial transmission for the transmission or reception of the retransmission of the protocol data unit in case the protocol data unit is retransmission.
  - 75. The method according to claim 59, wherein the information bits are associated to a single reference information indicating a transport format and a redundancy version used for transmitting the protocol data unit associated to the respective value represented by the information bits of the control information field for initial transmissions and retransmissions of the protocol data packet.

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Current Assignee
Optis Wireless Technology, LLC (Brevet Capital)
Original Assignee
Panasonic Corporation (Panasonic Holdings Corporation)
Inventors
Loehr, Joachim, Hiramatsu, Katsuhiko, Nishio, Akihiko, Wengerter, Christian, Suzuki, Hidetoshi

Granted Patent

US 8,385,284 B2
Time in Patent Office

Days
Field of Search
US Class Current

370/329
CPC Class Codes

H04L 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 signaling

H04W 72/21   in the uplink direction of ...

H04W 72/23   in the downlink direction o...

CONTROL CHANNEL SIGNALING USING A COMMON SIGNALING FIELD FOR TRANSPORT FORMAT AND REDUNDANCY VERSION

First Claim

5 Assignments

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Accused Products

Abstract

58 Citations

75 Claims

Specification

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CONTROL CHANNEL SIGNALING USING A COMMON SIGNALING FIELD FOR TRANSPORT FORMAT AND REDUNDANCY VERSION

First Claim

5 Assignments

Subscription Required

Subscription Required

0 Petitions

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Accused Products

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Abstract

58 Citations

75 Claims

Specification

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Solutions

Use Cases

Quick Links