US 11,723,085 B2
Service carrier frequency selecting method and apparatus
Xiubin Sha, Guangdong (CN); Bo Dai, Guangdong (CN); Qian Dai, Guangdong (CN); Jianxun Ai, Guangdong (CN); Lianbin Xiao, Guangdong (CN); Ting Lu, Guangdong (CN); Zhongda Du, Guangdong (CN); Yuanfang Yu, Guangdong (CN); and Sergio Parolari, Guangdong (CN)
Assigned to ZTE Corporation, Shenzhen (CN)
Filed by ZTE Corporation, Guangdong (CN)
Filed on Dec. 2, 2021, as Appl. No. 17/457,416.
Application 17/457,416 is a continuation of application No. 16/055,813, filed on Aug. 6, 2018, granted, now 11,212,848.
Application 16/055,813 is a continuation of application No. PCT/CN2017/072270, filed on Jan. 23, 2017.
Claims priority of application No. 201610084117.1 (CN), filed on Feb. 6, 2016; application No. 201610140659.6 (CN), filed on Mar. 11, 2016; application No. 201610666760.5 (CN), filed on Aug. 12, 2016; and application No. 201610877947.X (CN), filed on Sep. 30, 2016.
Prior Publication US 2022/0095394 A1, Mar. 24, 2022
Int. Cl. H04W 76/10 (2018.01); H04W 36/00 (2009.01); H04W 72/23 (2023.01); H04W 72/0453 (2023.01); H04W 72/044 (2023.01); H04W 76/27 (2018.01); H04W 74/08 (2009.01)
CPC H04W 76/10 (2018.02) [H04W 36/0072 (2013.01); H04W 72/0453 (2013.01); H04W 72/0473 (2013.01); H04W 72/23 (2023.01); H04W 74/0833 (2013.01); H04W 76/27 (2018.02)] 14 Claims
OG exemplary drawing
 
1. A method for wireless communication, comprising:
transmitting, by a mobile device, a Radio Resource Control, RRC, connection request to a base station, the RRC connection request message indicating a support by the mobile device for a narrowband multi-carrier operation in a licensed spectrum with a bandwidth of 200 KHz;
receiving, by the mobile device, an RRC connection message from the base station in response to the RRC connection request indicating the support for the narrowband multi-carrier operation, the RRC connection message including information that indicates a service carrier frequency selected by the base station for carrying traffic, wherein the information comprises an offset value indicating a difference between a transmission power of a narrowband reference signal of a non-anchor carrier indicated by the information and a transmission power of a narrowband reference signal of an anchor carrier, wherein the anchor carrier is configured to carry a broadcast channel and a synchronization channel and the non-anchor carrier is configured to carry traffic in which no broadcast channel or synchronization signal from the base station is assumed, wherein the information further indicates a transmission power of a narrowband reference signal of the service carrier frequency selected by the base station; and
operating the mobile device at the service carrier frequency indicated by the RRC connection message using a transmission power determined based on the offset value and the transmission power of the narrowband reference signal of the anchor carrier.