US 12,143,869 B2
Communication method and apparatus
Shuigen Yang, Shanghai (CN); Henrik Olofsson, Kista (SE); Feng Han, Shanghai (CN); and Wei Tan, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Apr. 30, 2021, as Appl. No. 17/245,231.
Application 17/245,231 is a continuation of application No. PCT/CN2019/115018, filed on Nov. 1, 2019.
Claims priority of application No. 201811303301.6 (CN), filed on Nov. 2, 2018.
Prior Publication US 2021/0250819 A1, Aug. 12, 2021
Int. Cl. H04W 36/00 (2009.01); H04W 28/06 (2009.01); H04W 76/27 (2018.01)
CPC H04W 36/0033 (2013.01) [H04W 28/06 (2013.01); H04W 76/27 (2018.02)] 17 Claims
OG exemplary drawing
 
1. A communication method, comprising:
sending, by a radio access network (RAN) device, an initial user equipment message to an access and mobility management function (AMF) device;
receiving, by the RAN device, an initial context setup request message sent by the AMF device, wherein the initial context setup request message comprises first information used to indicate at least one network slice preferentially used by a terminal device; and
sending a handover preparation failure message to the RAN device when it is determined not to enable the terminal device to access a portion or all of the at least one network slice.