# US 12,003,438 B2 · Aggregate component carrier for full-duplex operation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,003,438 B2 - Document ID: US12003438B2 - Status: Granted - Kind: B2 - Application number: 17/444,448 - Filed: 2021-08-04 - Published: 2023-02-09 - Granted: 2024-06-04 - Earliest claimed: 2021-08-04 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Ahmed Attia Abotabl; Abdelrahman Mohamed Ahmed Mohamed Ibrahim; Muhammad Sayed Khairy Abdelghaffar; Wanshi Chen - Web page: https://patentgrep.com/patent/US12003438B2 ## CPC - H04L 5/0037: {Inter-user or inter-terminal allocation} - H04L 1/0025: {Transmission of mode-switching indication} - H04L 1/1819: {with retransmission of additional or different redundancy} - H04L 1/1896: {ARQ related signaling} - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 5/14: Two-way operation using the same type of signal, i.e. duplex - H04L 5/16: Half-duplex systems; Simplex/duplex switching; Transmission of break signals {non-automatically inverting the direction of transmission} - H04L 27/2607: {Cyclic extensions} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an apparatus of a user equipment (UE) may receive a configuration for an aggregate component carrier. The aggregate component carrier may include a combination of multiple component carriers. The apparatus may perform a half-duplex communication utilizing the aggregate component carrier. Numerous other aspects are described. ## Claims ### Claim 1 An apparatus for wireless communication at a user equipment (UE), comprising: one or more memories; and one or more processors, coupled to the one or more memories, configured to: receive a configuration for an aggregate component carrier, wherein the aggregate component carrier includes a combination of multiple component carriers and one or more guard bands, wherein the combination of the multiple component carriers and the one or more guard bands of the aggregate component carrier is used to perform a half-duplex communication; receive an indication; and switch from operating in the multiple component carriers to operating in the aggregate component carrier based at least in part on the indication. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the multiple component carriers comprise contiguous component carriers. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the multiple component carriers comprise non-contiguous component carriers. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein a first component carrier, of the multiple component carriers, at least partially overlaps with a second component carrier, of the multiple component carriers. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the multiple component carriers comprise intra-band component carriers. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the multiple component carriers comprise inter-band component carriers. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the aggregate component carrier is associated with a list of component carriers, and wherein the list of component carriers includes the multiple component carriers. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein each component carrier, of the multiple component carriers, overlaps in a frequency domain with the aggregate component carrier. ### Claim 9 (depends on 7) The apparatus of claim 7, wherein each component carrier, of the multiple component carriers, has a same subcarrier spacing (SCS). ### Claim 10 (depends on 7) The apparatus of claim 7, wherein the aggregate component carrier and the multiple component carriers have a same subcarrier spacing (SCS). ### Claim 11 (depends on 7) The apparatus of claim 7, wherein a subcarrier spacing (SCS) of the aggregate component carrier is different from an SCS of one or more component carriers of the multiple component carriers. ### Claim 12 (depends on 7) The apparatus of claim 7, wherein the list of component carriers indicates a primary component carrier, and wherein the configuration of the aggregate component carrier is based at least in part on a configuration of the primary component carrier. ### Claim 13 (depends on 1) The apparatus of claim 1, wherein the UE is semi-statically configured to operate in the aggregate component carrier or the multiple component carriers during a time slot. ### Claim 14 (depends on 1) The apparatus of claim 1, wherein the UE is configured to operate in the aggregate component carrier when the UE is operating in a half-duplex mode, and wherein the UE is configured to operate in the multiple component carriers when the UE is operating in a full-duplex mode. ### Claim 15 (depends on 1) The apparatus of claim 1, wherein the indication is via one or more of layer 1 signaling or layer 2 signaling. ### Claim 16 (depends on 1) The apparatus of claim 1, wherein the one or more processors are further configured to: receive another indication; and switch from operating in the aggregate component carrier to operating in the multiple component carriers based at least in part on the other indication. ### Claim 17 (depends on 1) The apparatus of claim 1, wherein the one or more processors are further configured to: receive a slot format indicator (SFI) associated with the aggregate component carrier, wherein a slot format of the aggregate component carrier is based at least in part on the SFI. ### Claim 18 (depends on 1) The apparatus of claim 1, wherein a slot format indicator (SFI) associated with the aggregate component carrier corresponds to an SFI of a component carrier, of the multiple component carriers. ### Claim 19 (depends on 1) The apparatus of claim 1, wherein a radio resource control configuration provides a mapping between a slot format associated with a component carrier, of the multiple component carriers, and a slot format associated with the aggregate component carrier. ### Claim 20 (depends on 1) The apparatus of claim 1, wherein the configuration of the aggregate component carrier is separate from a configuration of the multiple component carriers. ### Claim 21 (depends on 1) The apparatus of claim 1, wherein the aggregate component carrier is configured with one or more bandwidth parts, and wherein only one bandwidth part, of the one or more bandwidth parts, is active during a time period. ### Claim 22 (depends on 21) The apparatus of claim 21, wherein the one or more bandwidth parts include one or more bandwidth parts associated with the multiple component carriers. ### Claim 23 (depends on 21) The apparatus of claim 21, wherein the multiple component carriers include a first component carrier associated with a first bandwidth part and a second component carrier associated with a second bandwidth part, wherein a frequency band separates the first bandwidth part and the second bandwidth part in a frequency domain, and wherein the one or more bandwidth parts include only the first bandwidth part and the second bandwidth part. ### Claim 24 (depends on 21) The apparatus of claim 21, wherein the multiple component carriers include a first component carrier associated with a first bandwidth part and a second component carrier associated with a second bandwidth part, wherein a frequency band separates the first bandwidth part and the second bandwidth part in a frequency domain, and wherein the one or more bandwidth parts include the first bandwidth part, the second bandwidth part, and the frequency band. ### Claim 25 (depends on 1) The apparatus of claim 1, wherein the aggregate component carrier is associated with a physical downlink shared channel (PDSCH), and wherein a configuration of a bandwidth part associated with the aggregate component carrier corresponds to a configuration of a first component carrier, of the multiple component carriers, based at least in part on the aggregate component carrier being associated with the PDSCH. ### Claim 26 (depends on 1) The apparatus of claim 1, wherein the one or more processors are further configured to: receive information allocating one or more of: a component carrier, of the multiple component carriers, or the aggregate component carrier, on which scheduling resources on a physical downlink shared channel is to occur, resources associated with a hybrid automatic repeat request (HARQ) acknowledgement for the aggregate component carrier, or resources associated with a HARQ acknowledgement for the multiple component carriers. ### Claim 27 An apparatus for wireless communication at a network entity, comprising: one or more memories; and one or more processors, coupled to the one or more memories, configured to: transmit a configuration for an aggregate component carrier that includes a combination of multiple component carriers and one or more guard bands, wherein the aggregate component carrier has a common configuration across the multiple component carriers, wherein the combination of the multiple component carriers and the one or more guard bands of the aggregate component carrier is used to perform a half-duplex communication; receive an indication; and switch from operating in the multiple component carriers to operating in the aggregate component carrier based at least in part on the indication. ### Claim 28 (depends on 27) The apparatus of claim 27, wherein the one or more processors are further configured to: transmit downlink control information indicating a component carrier, of the component carriers, or the aggregate component carrier, on which scheduling resources on a physical downlink shared channel is to occur. ### Claim 29 (depends on 27) The apparatus of claim 27, wherein the one or more processors are further configured to: transmit information allocating one or more of: resources associated with a hybrid automatic repeat request (HARQ) acknowledgement for the aggregate component carrier, or resources associated with a HARQ acknowledgement for the multiple component carriers.