# US 12,113,750 B2 · Method for deactivating carrier or activating carrier and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,750 B2 - Document ID: US12113750B2 - Status: Granted - Kind: B2 - Application number: 17/171,720 - Filed: 2021-02-09 - Published: 2021-06-03 - Granted: 2024-10-08 - Earliest claimed: 2018-08-10 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Xinxian Li; Hao Tang; Zhenfei Tang - Web page: https://patentgrep.com/patent/US12113750B2 ## CPC - H04L 5/0098: {Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands} - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 72/00: Local resource management - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract This application provides a method for deactivating a carrier and an apparatus. The method includes: A terminal receives first information, where the first information indicates a default bandwidth part (BWP). The terminal deactivates a secondary carrier based on the default BWP. According to the provided embodiments, the secondary carrier is deactivated by using physical layer control information for activating or deactivating a BWP. ## Claims ### Claim 1 An apparatus, comprising: one or more processors; and a non-transitory memory coupled to the one or more processors, wherein the non-transitory memory stores a program, the program including instructions that, when executed by the one or more processors, cause the apparatus to perform operations including: receiving second information, the second information indicating to deactivate a secondary carrier based on a default bandwidth part (BWP); receiving first information, the first information indicating the default BWP; and in response to the receiving first information, deactivating the secondary carrier based on the default BWP. ### Claim 2 (depends on 1) The apparatus according to claim 1, wherein: the second information comprises one or more of frequency domain resource allocation information, hybrid automatic repeat request (HARQ) process identification information, new data indication information, redundancy version information, physical uplink control channel (PUCCH) transmit power control command information, or modulation and coding scheme information; and wherein the deactivating the secondary carrier based on the default BWP comprises: deactivating the secondary carrier based on the default BWP when values of the one or more of the frequency domain resource allocation information, the HARQ process identification information, the new data indication information, the redundancy version information, the PUCCH transmit power control command information, or the modulation and coding scheme information are default values. ### Claim 3 (depends on 1) The apparatus according to claim 1, wherein the deactivating the secondary carrier based on the default BWP comprises: deactivating the secondary carrier based on the default BWP and third information, wherein the third information indicates the secondary carrier, and the third information comprises one or more of frequency domain resource allocation information, modulation and coding scheme information, or carrier indication information. ### Claim 4 (depends on 3) The apparatus according to claim 3, wherein the third information comprises information about at least one carrier of a plurality of secondary carriers. ### Claim 5 (depends on 1) The apparatus according to claim 1, wherein the default BWP is configured by a network device. ### Claim 6 (depends on 1) The apparatus according to claim 1, wherein the default BWP is an initial active BWP. ### Claim 7 (depends on 1) The apparatus according to claim 1, wherein the default BWP is an inactive BWP. ### Claim 8 (depends on 1) The apparatus according to claim 1, wherein the apparatus is a terminal or a chip. ### Claim 9 An apparatus, comprising: one or more processors; and a non-transitory memory coupled to the one or more processors, wherein the non-transitory memory stores a program, the program including instructions that, when executed by the one or more processors, cause the apparatus to perform operations including: sending second information, the second information indicating to deactivate a secondary carrier based on a default bandwidth part (BWP); and sending first information, the first information indicating the default BWP to be used for deactivating the secondary carrier in response to the sending the first information. ### Claim 10 (depends on 9) The apparatus according to claim 9, wherein: the second information comprises one or more of frequency domain resource allocation information, hybrid automatic repeat request (HARQ) process identification information, new data indication information, redundancy version information, physical uplink control channel (PUCCH) transmit power control command information, or modulation and coding scheme information; and the second information indicates to deactivate the secondary carrier based on the default BWP when values of the one or more of the frequency domain resource allocation information, the HARQ process identification information, the new data indication information, the redundancy version information, the PUCCH transmit power control command information, or the modulation and coding scheme information are default values. ### Claim 11 (depends on 9) The apparatus according to claim 9, the operations further comprising: sending third information indicating the secondary carrier, the third information comprising one or more of frequency domain resource allocation information, modulation and coding scheme information, or carrier indication information. ### Claim 12 (depends on 11) The apparatus according to claim 11, wherein the third information comprises information about at least one carrier of a plurality of secondary carriers. ### Claim 13 (depends on 9) The apparatus according to claim 9, wherein the default BWP is configured by a network device. ### Claim 14 (depends on 9) The apparatus according to claim 9, wherein the default BWP is an initial active BWP. ### Claim 15 (depends on 9) The apparatus according to claim 9, wherein the default BWP is an inactive BWP. ### Claim 16 (depends on 9) The apparatus according to claim 9, wherein the apparatus is a network device or a chip. ### Claim 17 A method, comprising: sending second information, the second information indicating to deactivate a secondary carrier based on a default bandwidth part (BWP); and sending first information, the first information indicating the default BWP to be used for deactivating the secondary carrier in response to the sending the first information. ### Claim 18 (depends on 17) The method according to claim 17, wherein the second information comprises one or more of frequency domain resource allocation information, hybrid automatic repeat request (HARQ) process identification information, new data indication information, redundancy version information, physical uplink control channel (PUCCH) transmit power control command information, or modulation and coding scheme information; and the second information indicates to deactivate the secondary carrier based on the default BWP when values of one or more of the frequency domain resource allocation information, the HARQ process identification information, the new data indication information, the redundancy version information, the PUCCH transmit power control command information, or the modulation and coding scheme information are default values. ### Claim 19 (depends on 17) The method according to claim 17, further comprising: sending third information, the third information comprises one or more of frequency domain resource allocation information, modulation and coding scheme information, or carrier indication information, and the third information indicates the secondary carrier. ### Claim 20 (depends on 19) The method according to claim 19, wherein the third information comprises information about at least one of a plurality of secondary carriers. ### Claim 21 (depends on 2) The apparatus of claim 2, wherein the second information is received in higher layer signaling, or the second information is received in one downlink control information (DCI); and wherein the secondary carrier includes a plurality of BWPs, and the deactivating the secondary carrier comprises: deactivating the secondary carrier including the plurality of BWPs from carrier aggregation of a primary carrier and the secondary carrier.