# US 10,772,082 B2 · Control channel signaling using a common signaling field for transport format, redundancy version, and new data indicator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,772,082 B2 - Document ID: US10772082B2 - Status: Granted - Kind: B2 - Application number: 15/041,439 - Filed: 2016-02-11 - Published: 2016-06-09 - Granted: 2020-09-08 - Earliest claimed: 2007-12-20 - Assignees: Optis Wireless Technology, LLC - Applicants: Optis Wireless Technology, LLC - Inventors: Christian Wengerter; Akihiko Nishio; Hidetoshi Suzuki; Joachim Löhr; Katsuhiko Hiramatsu - Web page: https://patentgrep.com/patent/US10772082B2 ## CPC - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04L 1/0079: {Formats for control data (H04L1/16 takes precedence; training sequences H04L25/00 and H04L27/00)} - H04L 1/1893: {Physical mapping arrangements (physical resource mapping in general H04L5/00)} - H04L 1/1896: {ARQ related signaling} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 1/1607: Details of the supervisory signal - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract New control signaling is associated to a protocol data unit conveying user data in a mobile communication system and to the control channel signal. A mobile station and a base station and their respective operation are described in view of the newly defined control channel signals. To reduce the control channel overhead, a common field is defined 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 on whether the control channel signal relates to an initial transmission or a retransmission. In another embodiment, further enhancements to an HARQ protocol address certain error cases. ## Claims ### Claim 1 A radio terminal for use in a radio communication system, the radio terminal comprising: a receiver for receiving a physical downlink control channel signal, and a transmitter for physical uplink shared channel transmission, wherein the physical downlink control channel signal is associated with the physical uplink shared channel transmission and includes control information comprising a transport block size used for the physical uplink shared channel transmission, a redundancy version used for the physical uplink shared channel transmission, and a new data indicator used for the physical uplink shared channel transmission. ### Claim 2 (depends on 1) The radio terminal according to claim 1, wherein the control information includes bits that represent one value out of a range of values. ### Claim 3 (depends on 2) The radio terminal according to claim 2, wherein a first subset of one or more of the values is for determination of the transport block size of the physical uplink shared channel transmission, a second subset of one or more of the values is for determination of the redundancy version for the physical uplink shared channel transmission, and a third subset of one or more of the values is for determination of the new data indicator for the physical uplink shared channel transmission. ### Claim 4 (depends on 3) The radio terminal according to claim 3, wherein the first subset of one or more values contains more values than the second subset of one or more values or the third subset of one or more values. ### Claim 5 (depends on 1) The radio terminal according to claim 1, wherein the new data indicator is a 1-bit flag. ### Claim 6 (depends on 1) The radio terminal according to claim 1, wherein the new data indicator is a separate field. ### Claim 7 (depends on 1) The radio terminal according to claim 1, wherein the transport block size is an index useable for determining the actual transport block size. ### Claim 8 (depends on 1) The radio terminal according to claim 1, wherein the radio terminal is a user equipment. ### Claim 9 A method performed by a radio terminal in a radio communication system, the method comprising the steps of: receiving a physical downlink control channel signal, and transmitting a physical uplink shared channel signal, wherein the physical downlink control channel signal is associated with the physical uplink shared channel transmission and includes control information including a transport block size used for the physical uplink shared channel transmission, a redundancy version used for the physical uplink shared channel transmission, and a new data indicator used for the physical uplink shared channel transmission. ### Claim 10 (depends on 9) The method according to claim 9, wherein the control information includes bits that represent one value out of a range of values. ### Claim 11 (depends on 10) The method according to claim 10, further comprising: determining the transport block size of the physical uplink channel transmission based on a first subset of one or more of the values, determining the redundancy version for the physical uplink channel transmission based on a second subset of one or more of the values, and determining the new data indicator for the physical uplink channel transmission based on a third subset of one or more of the values. ### Claim 12 (depends on 11) The method according to claim 11, wherein the first subset of one or more values contains more values than the second subset of one or more values or the third subset of one or more values. ### Claim 13 (depends on 9) The method according to claim 9, wherein the new data indicator is implemented as a 1-bit flag. ### Claim 14 (depends on 9) The method according to claim 9, wherein the new data indicator is implemented as a separate field. ### Claim 15 (depends on 9) The method according to claim 9, wherein the transport block size is an index, the method further comprising determining the actual transport block size using the index.