US 12,328,699 B2
Timing difference determination method and apparatus, device, and storage medium
Feng Bi, Shenzhen (CN); Ting Miao, Shenzhen (CN); Weimin Xing, Shenzhen (CN); Youxiong Lu, Shenzhen (CN); and Wenhao Liu, Shenzhen (CN)
Assigned to ZTE CORPORATION, Shenzhen (CN)
Appl. No. 17/916,701
Filed by ZTE CORPORATION, Shenzhen (CN)
PCT Filed Dec. 8, 2020, PCT No. PCT/CN2020/134403
§ 371(c)(1), (2) Date Oct. 3, 2022,
PCT Pub. No. WO2021/196702, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 202010256349.7 (CN), filed on Apr. 2, 2020.
Prior Publication US 2023/0156644 A1, May 18, 2023
Int. Cl. H04W 56/00 (2009.01); H04W 84/02 (2009.01); H04W 88/02 (2009.01); H04W 88/08 (2009.01); H04W 88/10 (2009.01); H04W 92/02 (2009.01); H04W 92/10 (2009.01); H04W 92/20 (2009.01)
CPC H04W 56/004 (2013.01) [H04W 56/001 (2013.01); H04W 56/0015 (2013.01); H04W 56/0025 (2013.01); H04W 56/0045 (2013.01); H04W 56/005 (2013.01); H04W 84/02 (2013.01); H04W 88/02 (2013.01); H04W 88/08 (2013.01); H04W 88/10 (2013.01); H04W 92/02 (2013.01); H04W 92/10 (2013.01); H04W 92/20 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A time difference determination method, comprising:
determining a time difference based on at least one of the following parameters: a parameter related to a timing parameter, a parameter related to a timing advance, or a parameter related to a physical resource;
wherein determining the time difference comprises determining the time difference according to the following formula:
TDiff=TTA/2+(−NTA,offset/2+NB,offset+TD·NG)·Tc,
wherein TDiff represents the time difference between a distributed unit (DU) transmission from a serving cell and an integrated access and backhaul node-mobile terminal (IAB-MT) reception,
TTA represents the timing advance and TTA refers to a time advance of an IAB-MT transmission with respect to the IAB-MT reception, or, refers to a difference between an IAB-MT reception time and an IAB-MT transmission time,
NTA,offset represents a timing advance offset,
NB,offset represents a baseline offset,
TD represents a timing parameter index,
NG represents a timing parameter granularity,
Tc represents a time unit, and Tc=1/(Δfmax·Nf), where Δfmax=480·103 HZ, and Nf=4096.