US 10,560,947 B2
Terminal device, network device, uplink reference signal sending method, and uplink reference signal receiving method
Xiaodong Yang, Shenzhen (CN); Jian Zhang, Beijing (CN); Yongxia Lyu, Ottawa (CA); and Wei Quan, Beijing (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, Guangdong (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, Guangdong (CN)
Filed on Mar. 21, 2018, as Appl. No. 15/928,058.
Application 15/928,058 is a continuation of application No. PCT/CN2015/090414, filed on Sep. 23, 2015.
Prior Publication US 2018/0213536 A1, Jul. 26, 2018
Int. Cl. H04W 72/04 (2009.01); H04W 52/36 (2009.01); H04W 52/14 (2009.01); H04W 52/32 (2009.01); H04W 52/22 (2009.01); H04W 52/24 (2009.01)
CPC H04W 72/0473 (2013.01) [H04W 52/146 (2013.01); H04W 52/325 (2013.01); H04W 52/365 (2013.01); H04W 52/228 (2013.01); H04W 52/242 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A terminal device, comprising:
a receiver;
a transmitter; and
a processor;
wherein the receiver is configured to receive, from a network device, a first indication information indicating an initial power value of an uplink reference signal to be sent to the network device;
wherein the transmitter is configured to send, in a first uplink subframe on a first carrier in an uplink, the uplink reference signal to the network device based on the initial power value, wherein the first carrier is a carrier on which the terminal device sends neither uplink data nor uplink control information in the uplink;
wherein the processor is configured to determine a first power headroom (PHR) based on the initial power value of the uplink reference signal in the first uplink subframe on the first carrier in the uplink, wherein the first PHR is a PHR of a transmit power of the terminal device in the first uplink subframe or a PHR of a transmit power of the terminal device in the first uplink subframe on the first carrier, wherein the first PHR is further determined based on a plurality of additional factors, including a sound reference signal (SRS) trigger type, a SRS bandwidth, an initial target power of the SRS, and a path loss.