Traffic pattern handling
The present application relates to methods, systems, and devices related to digital wireless communication, and more specifically, to techniques related to traffic pattern handling. In one exemplary aspect, a method for wireless communication is described. The method includes transmitting, by a first network function, a first message to a second network function that includes information relating to a stream of data, wherein the second network function is configured to derive a traffic pattern based on the information relating to the stream of data included in the first message. The method can also include receiving, by the first network function, a second message from the second network function that includes the derived traffic pattern.
1 . A method for data communication, comprising:
transmitting, by a session management function (SMF), an N4 request to a user plane function (UPF) that includes an indication for the UPF to calculate a traffic pattern that includes at least one of a burst arrival time, a periodicity, or a traffic jitter relating to a stream of data, wherein the UPF is configured to calculate the traffic pattern based on the N4 request;
receiving, by the SMF, a report from the UPF that includes the calculated traffic pattern;
calculating, by the SMF, time sensitive network (TSN) communication (TSC) assistance information (TSCAI) based on the calculated traffic pattern received in the report; and
forwarding, by the SMF, the calculated TSCAI to a radio access node.
2 . The method of claim 1 , further comprising:
transmitting, by the SMF, traffic pattern information from the calculated traffic pattern to a policy control function, wherein the policy control function is configured to forward the traffic pattern information to an application function, and wherein the traffic pattern information includes at least one of the burst arrival time, the periodicity, or the traffic jitter.
3 . The method of claim 1 , further comprising:
receiving, by the SMF, a second report of an arrival time of a packet from the UPF; and
calculating, by the SMF, a second traffic pattern from the reported arrival time.
4 . The method of claim 1 , further comprising:
establishing, by the SMF, a new quality of service (QoS) flow according to the calculated TSCAI.
5 . A method for data communication, comprising:
receiving, by a user plane function, an N4 request from a session management function that includes an indication for the user plane function to calculate a traffic pattern that includes at least one of a burst arrival time, a periodicity, and or a traffic jitter relating to a stream of data;
calculating, by the user plane function, the traffic pattern based on the N4 request; and
transmitting, by the user plane function, a report to the session management function that includes the calculated traffic pattern.
6 . The method of claim 5 , wherein the calculated traffic pattern includes the burst arrival time of the stream of data.
7 . The method of claim 5 , wherein the calculated traffic pattern includes the periodicity of the stream of data.
8 . The method of claim 5 , wherein the calculated traffic pattern includes a traffic direction of the stream of data.
9 . The method of claim 5 , wherein the calculated traffic pattern includes the traffic jitter of the stream of data.
10 . An apparatus for wireless communication, comprising processor electronics configured to implement a method, the processor electronics configured to cause the apparatus to:
transmit, by a session management function (SMF), an N4 request to a user plane function (UPF) that includes an indication for the UPF to calculate a traffic pattern that includes at least one of a burst arrival time, a periodicity, or a traffic jitter relating to a stream of data, wherein the UPF is configured to calculate the traffic pattern based on the N4 request;
receive, by the SMF, a report from the UPF that includes the calculated traffic pattern;
calculate, by the SMF, time sensitive network (TSN) communication (TSC) assistance information (TSCAI) based on the calculated traffic pattern received in the report; and
forward, by the SMF, the calculated TSCAI to a radio access node.
11 . The apparatus of claim 10 , wherein the processor is further configured to:
transmit, by the SMF, traffic pattern information from the calculated traffic pattern to a policy control function, wherein the policy control function is configured to forward the traffic pattern information to an application function, and wherein the traffic pattern information includes at least one of the burst arrival time, the periodicity, or the traffic jitter.
12 . The apparatus of claim 10 , wherein the processor electronics is further configured to:
receive, by the SMF, a second report of an arrival time of a packet from the UPF; and
calculate, by the SMF, a second traffic pattern from the reported arrival time.
13 . The apparatus of claim 10 , wherein the processor electronics is further configured to:
establish, by the SMF, a new quality of service (QoS) flow according to the calculated TSCAI.
14 . An apparatus for wireless communication, comprising processor electronics configured to cause the apparatus to:
receive, by a user plane function, an N4 request from a session management function that includes an indication for the user plane function to calculate a traffic pattern that includes at least one of a burst arrival time, a periodicity, and or a traffic jitter relating to a stream of data;
calculate, by the user plane function, the traffic pattern based on the N4 request; and
transmit, by the user plane function, a report to the session management function that includes the calculated traffic pattern.
15 . The apparatus of claim 14 , wherein the calculated traffic pattern includes the burst arrival time of the stream of data.
16 . The apparatus of claim 14 , wherein the calculated traffic pattern includes the periodicity of the stream of data.
17 . The apparatus of claim 14 , wherein the calculated traffic pattern includes a traffic direction of the stream of data.
18 . The apparatus of claim 14 , wherein the calculated traffic pattern includes the traffic jitter of the stream of data.