# US 2026/0019221 A1 · UNIFIED TCI FRAMEWORK EXTENSION FOR mTRP-BASED OPERATION IN WIRELESS COMMUNICATION > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0019221 A1 - Document ID: US20260019221A1 - Status: Published application - Kind: A1 - Application number: 19/334,687 - Filed: 2025-09-19 - Published: 2026-01-15 - Earliest claimed: 0001-01-01 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Hong HE; Chunhai YAO; Chunxuan YE; Dawei ZHANG; Haitong SUN; Seyed Ali Akbar FAKOORIAN; Wei ZENG - Web page: https://patentgrep.com/patent/US20260019221A1 ## CPC - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04B 7/024: Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems - H04L 5/0023: {Time-frequency-space} - H04L 5/0035: {Resource allocation in a cooperative multipoint environment} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 5/001: {the frequencies being arranged in component carriers} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Processes and systems for a unified transmission configuration indication (TCI) framework extension for multi-transmission and reception point (TRP) operation in wireless communication networks. For a unified TCI-state extension from sTRP to mTRP the system is configured to support switching between a single TRP (sTRP) mode operation and an mTRP mode operation. For a unified TCI-state extension from sTRP to mTRP the system is configured to support up to 4 TCI-states for association with a single TCI codepoint. ## Claims ### Claim 1 A method comprising: transmitting, to a device, configuration data including a transmission configuration indicator (TCI) field that describes one or more TCI states for at least one cell of a communication network; receiving, from the device, information indicating a transmission and reception point (TRP) mode of the device, the TRP mode being a single TRP (sTRP) mode or a multi-TRP (mTRP) mode, wherein a cell of a wireless communication network in which the information is being received is operating in the TRP mode. ### Claim 2 (depends on 1) The method of claim 1, wherein the configuration data specifies a first number of TCI states for uplink transmissions and a second number of TCI states for downlink transmissions. ### Claim 3 (depends on 2) The method of claim 2, wherein the device is configured to select the sTRP mode when the first number of TCI states and the second number of TCI states that are indicated in the configuration data are each an integer value that is less than two. ### Claim 4 (depends on 2) The method of claim 2, wherein the device is configured to select the mTRP mode when the first number of TCI states or the second number of TCI states that are indicated in the configuration data include an integer value that is greater than one. ### Claim 5 (depends on 1) The method of claim 1, further comprising transmitting the configuration data that explicitly specifies a TCI mode in a TCI field in downlink control information (DCI) transmission. ### Claim 6 (depends on 1) The method of claim 1, wherein the configuration data include a logical cell identifier (LCID), and wherein the TRP mode is based on a value of the LCID. ### Claim 7 (depends on 1) The method of claim 1, wherein the configuration data are included in a medium access control (MAC) control element (CE), the MAC CE including a plurality of fields, wherein the plurality of fields specify a set of TCI states associated with a TCI codepoint. ### Claim 8 (depends on 7) The method of claim 7, wherein a first field value of a field of the plurality indicates a first pair of the TCI states of a full TCI state set, and wherein a second field value of the field of the plurality indicates a second pair of the TCI states of the set of TCI states. ### Claim 9 (depends on 7) The method of claim 7, wherein a MAC subheader of the MAC CE specifies an LCID that indicates a cell associated with the set of TCI states. ### Claim 10 (depends on 1) The method of claim 1, wherein the configuration data is a part of radio resource control (RRC) signaling, and wherein the TCI field indicates TCI states for a TCI codepoint for updating by the UE. ### Claim 11 (depends on 10) The method of claim 10, wherein the RRC signaling includes a downlink and/or uplink identifier field and a pair identification field. ### Claim 12 One or more processors comprising circuitry for performing operations for wireless communication, the operations comprising: causing transmission, to a device, configuration data including a component carrier (CC) list for a cell group, the CC list specifying a reference cell and a transmission configuration indicator (TCI) specifying one or more TCI states for the reference cell, wherein the other cells in the CC list are configured to use the one or more TCI states specified for the reference cell; receiving, from the device, information based on a selected transmission and reception point (TRP) mode of the device, the TRP mode being a single TRP (sTRP) mode or a multi-TRP (mTRP) mode, the information received in a cell of a wireless communication network that is also operating in the selected TRP mode. ### Claim 13 (depends on 12) The one or more processors of claim 12, wherein the CC list includes one or more sTRP CCs and one or more single downlink control information (sDCI)-based mTRP CCs. ### Claim 14 (depends on 13) The one or more processors of claim 13, wherein the reference cell is configured with a sDCI-based mTRP CC, and wherein radio resource control (RRC) signaling specifies that a first group, a second group, or both groups of TCI-states for the reference cell are used for sTRP. ### Claim 15 (depends on 12) The one or more processors of claim 12, wherein the CC list includes one or more sTRP CCs and one or more multi-downlink control information (mDCI)-based mTRP CCs. ### Claim 16 (depends on 15) The one or more processors of claim 15, wherein the reference cell is configured with a sDCI-based mTRP CC, and wherein radio resource control (RRC) signaling specifies a value for a CORESET pool index. ### Claim 17 (depends on 12) The one or more processors of claim 12, wherein the CC list includes one or more sDCI-based mTRP CCs and one or more mDCI-based mTRP CCs. ### Claim 18 (depends on 17) The one or more processors of claim 17, wherein one of CCs with sDCI-based mTRP is indicated as reference CC, or wherein one of CCs with mDCI-based mTRP is indicated as reference CC. ### Claim 19 An apparatus for wireless communication, the apparatus comprising: at least one processor; and a memory storing instructions that, when executed by the at least one processor, cause the at least one processor to perform operations comprising: causing transmission, to a device, configuration data including a transmission configuration indicator (TCI) field that describes one or more TCI states for at least one cell of a communication network; receiving, from the device, information indicating a transmission and reception point (TRP) mode of the device, the TRP mode being a single TRP (sTRP) mode or a multi-TRP (mTRP) mode, wherein a cell of a wireless communication network in which the information is being received is operating in the TRP mode. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the configuration data specifies a first number of TCI states for uplink transmissions and a second number of TCI states for downlink transmissions.