US 11,937,252 B2
Method for activating bandwidth part, terminal device, and network device
Jia Shen, Guangdong (CN); Yanan Lin, Guangdong (CN); and Cong Shi, Guangdong (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Dec. 15, 2020, as Appl. No. 17/123,064.
Application 17/123,064 is a continuation of application No. PCT/CN2018/093241, filed on Jun. 28, 2018.
Prior Publication US 2021/0105756 A1, Apr. 8, 2021
Int. Cl. H04W 72/23 (2023.01); H04W 76/27 (2018.01)
CPC H04W 72/23 (2023.01) [H04W 76/27 (2018.02)] 26 Claims
OG exemplary drawing
 
1. A method for activating a bandwidth part (BWP), comprising:
receiving, by a terminal device, second downlink control information (DCI) sent by a network device, wherein a first BWP of the terminal device is in an active state, the second DCI is scrambled by a second radio network temporary identifier (RNTI), the second DCI is used for indicating a second BWP, and the first BWP is not activated by the second DCI; and
maintaining, by the terminal device, the active state of the first BWP and activating the second BWR;
wherein the second DCI comprises an indicator of the second BWP;
wherein before receiving, by the terminal device, the second downlink control information (DCI) sent by the network device, further comprising:
receiving, by the terminal device, second configuration information sent by the network device, wherein the second configuration information comprises at least one configuration sub-information, the configuration sub-information is used for indicating a corresponding relationship between a configuration parameter of at least one BWP comprised in a group of BWPs and an intra-group number of the at least one BWP, the group of BWPs corresponds to one RNTI, a configuration parameter of a fifth BWP among the at least one BWP comprises: a subcarrier spacing of the fifth BWP, a cyclic prefix type of the fifth BWP, and a number and a frequency domain position of resource blocks comprised in the fifth BWP, wherein the fifth BWP is any one BWP among the at least one BWP;
after receiving, by the terminal device, the second downlink control information (DCI) sent by the network device, further comprising:
determining, by the terminal device, the second RNTI according to the second DCI, wherein the indicator of the second BWP comprised in the second DCI is an intra-group number of the second BWP; and
determining, by the terminal device, the second BWP, within a BWP group corresponding to the second RNTI, according to the intra-group number of the second BWP.