US 11,683,392 B2
Cache decision method and apparatus
Huan Yan, Beijing (CN); Yong Li, Beijing (CN); and Haiyang Sun, Beijing (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Jun. 24, 2020, as Appl. No. 16/910,576.
Application 16/910,576 is a continuation of application No. PCT/CN2018/125797, filed on Dec. 29, 2018.
Claims priority of application No. 201711498942.7 (CN), filed on Dec. 29, 2017.
Prior Publication US 2020/0322447 A1, Oct. 8, 2020
Int. Cl. G06F 15/16 (2006.01); H04L 67/5682 (2022.01); H04L 67/289 (2022.01); H04W 24/08 (2009.01)
CPC H04L 67/5682 (2022.05) [H04L 67/289 (2013.01); H04W 24/08 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A cache decision method, comprising:
receiving, by a policy control function (PCF), first cache information sent by at least one local analytic function (LAF), wherein the first cache information comprises a base station identifier, identifiers of N1 pieces of application information that are accessed for a maximum quantity of times, and content corresponding to the identifiers of the N1 pieces of application information, and wherein N1 is a positive integer;
sending, by a network data analytics network element (NWDAF), second cache information, wherein the second cache information is determined by the NWDAF by performing network-wide data analysis based on historical access data sent by the LAF, the second cache information comprises a base station identifier, identifiers of N2 pieces of application information that are accessed for a maximum quantity of times in an entire network, and content corresponding to the identifiers of the N2 pieces of application information, the historical access data is content corresponding to N3 pieces of application information that are accessed for a maximum quantity of times, and N2 and N3 are positive integers;
receiving, by the PCF, the second cache information;
determining, by the PCF, local cache content based on the first cache information, the second cache information, and a capacity of a local cache; and
sending, by the PCF to a session management function network element (SMF), offloading rule information that carries an identifier of the application information in the local cache content.