# US 2014/0192843 A1 · Method and apparatus for triggering a ranked transmission > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192843 A1 - Document ID: US20140192843A1 - Status: Published application - Kind: A1 - Application number: 14/237,691 - Filed: 2011-08-10 - Published: 2014-07-10 - Earliest claimed: 2011-08-10 - Assignees: Broadcom Corporation - Inventors: Erlin Zeng; Shuang Tan - Web page: https://patentgrep.com/patent/US20140192843A1 ## CPC - H04B 1/713: using frequency hopping - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/02: Channels characterised by the type of signal - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method and apparatus are provided for providing improved spectrum efficiency by triggering a ranked transmission. In this regard, a method is provided that includes causing a configuration message to be transmitted to a mobile terminal, wherein the configuration message provides interpretation information for a frequency hopping flag bit. The method also includes determining a rank for a transmission. The method may include setting a rank indication in the frequency hopping flag bit of a downlink control message based on the determined rank of the transmission. ## Claims ### Claim 1 A method comprising: causing a configuration message to be transmitted to a mobile terminal, wherein the configuration message provides interpretation information for a frequency hopping flag bit; determining a rank for a transmission; and setting a rank indication in the frequency hopping flag bit of a downlink control message based on the determined rank of the transmission. ### Claim 2 (depends on 1) A method of claim 1, wherein causing a configuration message to be transmitted further comprises providing trigger information for rank-2 Uplink Control Information-only Physical Uplink Shared Channel “PUSCH” transmission. ### Claim 3 (depends on 1) A method of claim 1, further comprising determining whether a mobile terminal will use frequency hopping in an Uplink Control Information-only PUSCH transmission. ### Claim 4 (depends on 1) A method of claim 1, wherein determining a rank further comprises determining a rank for the transmission based on an uplink channel status. ### Claim 5 (depends on 1) A method of claim 1, further comprising receiving the transmission from the mobile terminal, wherein the transmission is encoded using a predetermined precoder. ### Claim 6 (depends on 1) A method of claim 1, wherein the determining the rank for the transmission further comprises determining whether the transmission will use at least one of rank-1 and rank-2 for the Uplink Control Information -only PUSCH transmission. ### Claim 7 (depends on 1) A method of claim 1, wherein the configuration message is a downlink control information “DCI” format 0 message. ### Claim 8 An apparatus comprising a processor and a memory including software, the memory and the software configured to, with the processor, cause the apparatus to at least: cause a configuration message to be transmitted to a mobile terminal, wherein the configuration message provides interpretation information for a frequency hopping flag bit; determine a rank for a transmission from a mobile terminal; and set a rank indication in the frequency hopping flag bit of a downlink control message based on the determined rank of the transmission. ### Claim 9 (depends on 8) An apparatus according to claim 8, wherein the at least one memory including the computer program code is further configured to, with the at least one processor, cause the apparatus to provide trigger information for a rank-2 Uplink Control Information-only Physical Uplink Shared Channel “PUSCH” transmission. ### Claim 10 (depends on 8) An apparatus according to claim 8, wherein the at least one memory including the computer program code is further configured to, with the at least one processor, cause the apparatus to determine whether a mobile terminal will use frequency hopping in an Uplink Control Information-only PUSCH transmission. ### Claim 11 (depends on 8) An apparatus according to claim 8, wherein the at least one memory including the computer program code is further configured to, with the at least one processor, cause the apparatus to determine a rank further comprises determining a rank for the transmission based on an uplink channel status. ### Claim 12 (depends on 8) An apparatus according to claim 8, wherein the at least one memory including the computer program code is further configured to, with the at least one processor, cause the apparatus to receive the transmission from the mobile terminal, wherein the transmission is encoded using a predetermined precoder. ### Claim 13 (depends on 8) An apparatus according to claim 8, wherein the at least one memory including the computer program code is further configured to, with the at least one processor, cause the apparatus to determine whether the transmission will use at least one of rank-1 and rank-2 for the Uplink Control Information-only PUSCH transmission. ### Claim 14 (depends on 8) An apparatus according to claim 8, wherein the configuration message is a downlink control information “DCI” format 0 message. ### Claim at position 15 15-30. (canceled) ### Claim 31 (depends on 5) A method of claim 5, wherein the predetermined precoder is used in an instance where a transmission is a rank-2 Uplink Control Information-only PUSCH transmission. ### Claim at position 17 32-33. (canceled) ### Claim 34 An apparatus comprising a processor and a memory including software, the memory and the software configured to, with the processor, cause the apparatus to at least: receive a configuration message, wherein the configuration message provides interpretation information for a frequency hopping flag bit; determine a rank indication using the frequency hopping flag bit of a downlink control message; and cause a transmission based on the determined rank indication. ### Claim 35 (depends on 34) An apparatus according to claim 34, wherein the at least one memory including the computer program code is further configured to, with the at least one processor, cause the apparatus to cause a rank-2 Uplink Control Information-only Physical Uplink Shared Channel “PUSCH” transmission to be triggered. ### Claim 36 (depends on 34) An apparatus according to claim 34, wherein the at least one memory including the computer program code is further configured to, with the at least one processor, cause the apparatus to determine a precoder in an instance where a transmission is a rank-2 Uplink Control Information-only PUSCH transmission. ### Claim 37 (depends on 34) An apparatus according to claim 34, wherein the at least one memory including the computer program code is further configured to, with the at least one processor, cause the apparatus to determine whether the transmission will use at least one of rank-1 and rank-2 for the Uplink Control Information-only PUSCH transmission. ### Claim 38 (depends on 34) An apparatus according to claim 34, wherein the configuration message is a downlink control information “DCI” format 0 message. ### Claim at position 23 39-48. (canceled)