# US 2025/0097987 A1 · Techniques to configure a reconfigurable intelligent surface device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0097987 A1 - Document ID: US20250097987A1 - Status: Published application - Kind: A1 - Application number: 18/729,340 - Filed: 2022-01-17 - Published: 2025-03-20 - Earliest claimed: 2022-01-17 - Assignees: Zte Corporation - Applicants: ZTE Corporation - Inventors: Qian DAI; Yijun CUI; Ping LI - Web page: https://patentgrep.com/patent/US20250097987A1 ## CPC - H04W 24/02: Arrangements for optimising operational condition - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04B 7/04013: {Intelligent reflective surfaces} - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04W 52/0229: {where the received signal is a wanted signal} - H04W 68/02: Arrangements for increasing efficiency of notification or paging channel - H04W 74/004: {in the uplink, i.e. towards network} - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 74/002: {Transmission of channel access control information} - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract Techniques are described to configure a reconfigurable intelligent surface (RIS) device or a repeater device. An example wireless communication method includes receiving, by a communication device (e.g., RIS device or a repeater device) from a network device, control information; and configuring the communication device according to the control information. ## Claims ### Claim 1 A wireless communication method, comprising: receiving, by a communication device a from a network device, control information; and configuring the communication device according to the control information. ### Claim 2 (depends on 1) The method of claim 1, wherein a number of transmissions of the control information to be received by the communication device is pre-configured, and wherein the communication device receives from the network device a system message or a dedicated message that indicates the number of transmissions; or, wherein the control information is included in a paging message. ### Claim 3 (canceled) ### Claim 4 (depends on 1) The method of claim 1, further comprising: receiving, by a communication device from a network device, a paging message that indicates that control information is available for the communication device; initiating, by the communication device, a random access procedure in response to receiving the paging message; and receiving, by the communication device, the control information during the random access procedure; or, wherein the control information is included in msg2 or msg4 in case that the random access procedure being a 4-step random access procedure; or, wherein the control information is included in msgB in case that the random access procedure being a 2-step random access procedure. ### Claim 5 (canceled) ### Claim 6 (canceled) ### Claim 7 (depends on 4) The method of claim 4, wherein the communication device initiates the random access procedure using a physical random access channel resource (PRACH) resource dedicated for a reconfigurable intelligent surface (RIS) device, and wherein the PRACH resource is received by the communication device and configured by the network device. ### Claim 8 (depends on 1) The method of claim 1, wherein the control information is received using pre-configured downlink resources or pre-scheduled resources; or, wherein the pre-configured downlink resources or the pre-scheduled resources include time domain resources and frequency domain resources. ### Claim 9 (canceled) ### Claim 10 (depends on 8) The method of claim 8, wherein the pre-configured downlink resources or the pre-scheduled resources are received by the communication device when the communication device is in a radio resource control (RRC) connected state prior to the receiving the control information, and wherein the communication device receives from the network device a system message or a dedicated message that indicates the pre-configured downlink resources or the pre-scheduled resources. ### Claim 11 (depends on 8) The method of claim 8, wherein the pre-configured downlink resources or the pre-scheduled resources are valid during a time when the communication device operates a timer that has not expired which indicates that the communication device is synchronized with the network device; or, wherein a length of the time is configured by the network device and is received by the communication device from the network device; or, wherein the communication device receives the control information during a radio resource control (RRC) idle state or a RRC inactive state by monitoring for signaling that includes the control information on the pre-configured downlink resources or on the pre-scheduled resources. ### Claim 12 (canceled) ### Claim 13 (canceled) ### Claim 14 (depends on 1) The method of claim 1, wherein the control information includes any one or more of the following: an identifier of the communication device, a first indication to turn on or turn off an RIS reflective panel of the communication device, a second indication that indicates whether to update codebook used to control the RIS reflective panel of the communication device, a codebook content or a codebook index, wherein the codebook index is used to correspond to one of plurality of codebooks stored by the communication device, an effective time or an effective time offset of a codebook, configuration of the RIS reflective panel, or a wake-up purpose indication. ### Claim 15 (depends on 14) The method of claim 14, wherein the configuration of the RIS reflective panel includes any one or more of the following: a RIS reflective panel index, a RIS reflective panel working mode, a RIS reflective panel configuration cycle, a horizontal steering angle of the RIS reflective panel, a vertical steering angle of the RIS reflective panel, or an effective time or an effective time offset of the configuration of the RIS reflective panel. ### Claim 16 (depends on 14) The method of claim 14, wherein the wake-up purpose indication indicates whether there is a subsequent information to be received by the communication device, or wherein the wake-up purpose indication includes: a normal wake-up indication that indicates to the communication device to complete a radio resource control (RRC) connection procedure or RRC resume procedure, or a temporary wake-up that indicates to the communication device that the communication device does not need to complete the RRC connection procedure or the RRC resume procedure. ### Claim 17 (depends on 1) The method of claim 1, wherein the communication device sends to the network device a feedback message that indicates that the communication device received the control information in a paging message, and wherein the feedback message is sent by using a dedicated random access preamble configured by the network device or by using a dedicated physical random access channel resource (RACH) configured by the network device for the communication device. ### Claim 18 (depends on 4) The method of claim 4, wherein the communication device sends to the network device a feedback message that indicates that the communication device received the control information, and wherein the feedback message is sent in msg3 or msg5 of the 4-step random access procedure. ### Claim 19 (depends on 1) The method of claim 1, wherein the communication device sends to the network device a feedback message that indicates that the communication device received the control information, and wherein the feedback message is sent by using network pre-configured uplink wireless resources or pre-scheduled uplink wireless resources. ### Claim 20 (depends on 4) The method of claim 4, wherein the communication device sends to the network device a feedback message that indicates that the communication device received the control information, and wherein the feedback message is sent using a hybrid automatic repeat request (HARQ) acknowledgement/non-acknowledgement (ACK/NACK) response corresponding to the msgB of the 2-step random access procedure in case the control information is received in the msgB. ### Claim 21 (depends on 8) The method of claim 8, wherein the communication device sends to the network device a feedback message that indicates that the communication device received the control information, and wherein the feedback message is sent with an acknowledgement (ACK) or non-acknowledgement (NACK) feedback corresponding to the pre-configured downlink resources or the pre-scheduled downlink resources. ### Claim 22 A wireless communication method, comprising: receiving, by a network device from a management function, control information for a communication device; transmitting, by the network device, the control information to the communication device; and transmitting, by the network device to the management function, a confirmation that indicates that the communication device received the control information. ### Claim 23 (depends on 22) The method of claim 22, wherein the control information is included in a paging message; or, wherein the control information is included in msg2 or msg4 in case that a random access procedure between the network device and the communication device being a 4-step random access procedure; or, wherein the control information is included in msgB in case that a random access procedure between the network device and the communication device being a 2-step random access procedure; or, wherein the control information is transmitted using pre-configured downlink resources or pre-scheduled resources. ### Claim 24 (canceled) ### Claim 25 (canceled) ### Claim 26 (canceled) ### Claim 27 (canceled) ### Claim 28 (canceled) ### Claim 29 A wireless communication method, comprising: transmitting, by a management function to a network device, control information for a communication device; and receiving, by the management function from the network device, a confirmation that indicates that the communication device received the control information. ### Claim 30 (canceled) ### Claim 31 (canceled) ### Claim 32 (depends on 1) The method of claim 1, wherein the communication device includes a reconfigurable intelligent surface (RIS) device or a repeater device. ### Claim 33 (canceled) ### Claim 34 (depends on 1) A non-transitory computer readable program storage medium having code stored thereon, the code, when executed by a processor, causing the processor to implement a method recited in claim 1.