# US 12,004,178 B2 · Method for control signaling in a wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,178 B2 - Document ID: US12004178B2 - Status: Granted - Kind: B2 - Application number: 17/413,206 - Filed: 2020-01-08 - Published: 2022-02-17 - Granted: 2024-06-04 - Earliest claimed: 2019-02-15 - Assignees: Sony Group Corporation - Applicants: Sony Group Corporation - Inventors: Nafiseh Mazloum; Rickard Ljung; Basuki Priyanto - Web page: https://patentgrep.com/patent/US12004178B2 ## CPC - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 52/0229: {where the received signal is a wanted signal} - H04W 72/1273: of downlink data flows - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A solution for signaling control information between a network node (10) and a UE (1) in a wireless communication system, which includes a method carried out in the network node, comprising transmitting (S101), to the UE on a control channel, first control information (S1) associated with a first transmission (S2) between the network node and the UE; transmitting (S103, S104), to the UE, an indication signal (S3) instructing the UE to reuse obtention information (DCI1, PAR) associated with the first control information for a further transmission between the network node and the UE. The indication signal may instruct the UE to reuse the first control information (DCI1) as said obtention information, or the obtention information may be indicative of a decoding parameter (PAR) to be used for decoding further control information (S4). ## Claims ### Claim 1 Method for signaling control information from a network node to a User Equipment, UE, in a wireless communication system, comprising transmitting, to the UE on a control channel, first control information associated with a first transmission of first data between the network node and the UE; transmitting, to the UE, an indication signal instructing the UE to reuse obtention information associated with the first control information for a further transmission of second data between the network node and the UE, wherein the second data is different from the first data; and transmitting second control information associated with the second data transmission, wherein said obtention information is indicative of a decoding parameter to be used for decoding the second control information. ### Claim 2 (depends on 1) The method of claim 1, comprising: transmitting the first data to the UE, wherein the first control information is associated with receiving the first data in the UE; and transmitting the second data from the network node to the UE, wherein said indication signal instructs the UE to reuse the obtention information for receiving the second data in the UE. ### Claim 3 (depends on 1) The method of claim 1, wherein said indication signal instructs the UE to reuse the first control information as said obtention information. ### Claim 4 (depends on 3) The method of claim 3, wherein said indication signal instructs the UE to reuse last received control information. ### Claim 5 (depends on 3) The method of claim 3, wherein said indication signal specifically instructs the UE to reuse control information identified as transmitted with said first control information for receiving the second data in the UE. ### Claim 6 (depends on 1) The method of claim 1, wherein said indication signal is transmitted in lieu of control information dedicated to the second data transmission. ### Claim 7 (depends on 1) The method of claim 1, wherein said indication signal instructs the UE to reuse a last used decoding parameter for decoding control information. ### Claim 8 (depends on 1) The method of claim 1, wherein said indication signal instructs the UE to reuse a decoding parameter identified by the UE as used for decoding the first control information. ### Claim 9 (depends on 1) The method of claim 1, wherein said indication signal is multiplexed with the second control information. ### Claim 10 (depends on 1) The method of claim 1, wherein the indication signal is uncoded. ### Claim 11 (depends on 1) The method of claim 1, wherein the indication signal is a predetermined signal, adapted to indicate a reuse instruction, wherein the indication signal comprises at least one of a predetermined sequence, a phase-shifted signal, a cover-coded signal, a wakeup signal. ### Claim 12 Method for signaling control information from a network node to a User Equipment, UE, in a wireless communication system, comprising: transmitting, to the UE on a control channel, first control information associated with a first transmission of first data between the network node and the UE; transmitting, to the UE, an indication signal instructing the UE to reuse obtention information associated with the first control information for a further transmission of second data between the network node and the UE, wherein the second data is different from the first data; and transmitting configuration information for receipt in the UE related to the indication signal; and transmitting activation information for receipt in the UE, indicating activation or deactivation of indication signal transmission. ### Claim 13 Method for use in a User Equipment, UE, for signaling with a network node in a wireless communication system, comprising receiving, from the access node on a control channel, first control information associated with a first transmission of first data from the network node; receiving, from the access node, an indication signal instructing the UE to reuse obtention information associated with the first control information for obtaining second data from a second transmission from the network node, wherein the second data is different from the first data; receiving second control information associated with the second data, wherein said obtention information is indicative of a decoding parameter to be used for processing the second control information; and using the obtention information to obtain the second data. ### Claim 14 (depends on 13) The method of claim 13, comprising: processing the first control information to determine scheduling for receiving data; receiving the first data from the access node; and receiving the second data from the network node, wherein said indication signal indicates to the UE to reuse the first control information as said obtention information for receiving the second data. ### Claim 15 (depends on 13) The method of claim 13, wherein said indication signal indicates to the UE to reuse last received control information. ### Claim 16 (depends on 13) The method of claim 13, comprising: receiving second control information associated with the second data, wherein said obtention information is indicative of a decoding parameter to be used for processing the second control information.