Method and apparatus for predicting traffic and transmitting a buffer prediction status report

Patent metadata

Field	Value
Publication number	US-12543173-B2
Application number	US-202318099662-A
Country	US
Kind code	B2
Filing date	Jan 20, 2023
Priority date	Jan 20, 2022
Publication date	Feb 3, 2026
Grant date	Feb 3, 2026

Abstract

An operation method of a terminal in a communication system may comprise: predicting traffic using a traffic prediction function configured according to traffic prediction configuration information; transmitting a buffer prediction status report including a traffic prediction result to a base station; receiving a first physical uplink shared channel (PUSCH) resource allocation information generated based on the buffer prediction status report; and transmitting data to the base station using first resources allocated by the first PUSCH resource allocation information.

First claim

What is claimed is:

1 . An operation method of a terminal in a communication system, the method comprising:
predicting traffic using a traffic prediction function configured according to traffic prediction configuration information; determining whether a traffic prediction result satisfies a reporting condition; transmitting, in response to the traffic prediction result satisfying the reporting condition, a scheduling request to a base station; receiving a first physical uplink shared channel (PUSCH) resource allocation information generated based on the scheduling request from the base station; transmitting a buffer prediction status report including the traffic prediction result to the base station using first resources allocated by the first PUSCH resource allocation information; receiving a seconds PUSCH resource allocation information generated based on the buffer prediction status report; and transmitting data to the base station using second resources allocated by the second PUSCH resource allocation information.

2 . The method of claim 1 , wherein the traffic prediction result comprises at least one of amount of uplink traffic, predicted generation time of uplink traffic, or prediction accuracy of uplink traffic.

3 . The method of claim 1 , wherein the reporting condition is at least one of a condition in which amount of uplink traffic is equal to or greater than a predetermined size, a condition in which predicted generation time of uplink traffic is within a predetermined period of time, or a condition in which prediction accuracy of uplink traffic is equal to or greater than a predetermined percentage.

4 . The method of claim 1 , further comprising:
receiving traffic prediction model information for each traffic prediction model identified by a traffic prediction model identifier from the base station; receiving traffic prediction configurating information including the traffic prediction model identifier from the base station; and configuring the traffic prediction function with a traffic prediction model identified by the traffic prediction model identifier.

5 . The method of claim 1 , further comprising:
receiving, from the base station, model feedback configuration information requesting transmission of a model feedback signal when a different between a measurement result and a prediction result at a predetermined time is equal to or greater than a threshold value; obtaining the measurement result by measuring traffic at the predetermined time; obtaining the prediction result by predicting a traffic at the predetermined time; and transmitting the model feedback signal to the base station in response to the measurement result and the prediction result being equal to or greater than the threshold value.

6 . The method of claim 5 , wherein transmitting the model feedback signal to the base station in response to the measurement result and the prediction result being equal to or greater than the threshold value comprises:
transmitting, in response to the measurement result and the prediction result being equal to or greater than the threshold value, an information availability indicator indicating the presence of a model feedback report to the base station; receiving a model feedback report request from the base station; and transmitting the model feedback signal including information on the measurement result and information on the prediction result to the base station.

7 . The method of claim 1 , further comprising:
receiving a traffic prediction activation command from the base station; and activating the traffic prediction function according to the traffic prediction activation command.

8 . The method of claim 1 , further comprising:
checking a state of the terminal upon prediction of generation of traffic according to the traffic prediction result; establishing, in response to the state being an idle state, a radio resource control (RRC) connection with the base station through an RRC connection establishment procedure; and resuming, in response to the state being inactive state, an RRC connection with the base station through an RRC connection resume procedure with the base station.

9 . An operation method of a base station in a communication system, the method comprising:
transmitting traffic prediction model information for each traffic prediction model identified by a traffic prediction model identifier to a terminal; generating traffic prediction configuration information including the traffic prediction model identifier; transmitting the traffic prediction configuration information to the terminal; receiving from the terminal a scheduling request generated based on a traffic prediction result predicted according to the traffic prediction configuration information; allocating first physical uplink shared channel (PUSCH) resources based on the scheduling request; transmitting allocation information on the first PUSCH resources to the terminal; and receiving a buffer prediction status report through the first PUSCH resources.

10 . The method of claim 9 , further comprising:
receiving a buffer prediction status report including a traffic prediction result from the terminal; allocating second PUSCH resources based on the buffer prediction status report; transmitting allocation information on the PUSCH resources to the terminal; and receiving data through the second PUSCH resources from the terminal.

11 . The method of claim 9 , further comprising:
predicting downlink traffic using a traffic prediction model; checking a state of the terminal upon prediction of generation of the downlink traffic; transmitting a paging message to the terminal when the state is an idle state or an inactive state; and initiating a radio resource control (RRC) connection establishment or RRC resume procedure with the terminal.

12 . A terminal comprising:
a processor configured to control the terminal to; predict traffic using a traffic prediction function configured according to traffic prediction configuration information; determine whether a traffic prediction result satisfies a reporting condition; transmit, in response to the traffic prediction result satisfying the reporting condition, a scheduling request to a base station; receive a first physical uplink shared channel (PUSCH) resource allocation information generated based on the scheduling request from the base station; transmit a buffer prediction status report including the traffic prediction result to the base station using first resources allocated by the first PUSCH resource allocation information; receive a second PUSCH resource allocation information generated based on the buffer prediction status report; and transmit data to the base station using second resources allocated by the second PUSCH resource allocation information.

13 . The terminal of claim 12 , wherein the traffic prediction result comprises at least one of amount of uplink traffic, predicted generation time of uplink traffic, or prediction accuracy of uplink traffic.

14 . The terminal of claim 12 , wherein the reporting condition is at least one of a condition in which amount of uplink traffic is equal to or greater than a predetermined size, a condition in which predicted generation time of uplink traffic is within a predetermined period of time, or a condition in which prediction accuracy of uplink traffic is equal to or greater than a predetermined percentage.

15 . The terminal of claim 12 , wherein the processor is further configured to control the terminal to receive, from the base station,

Assignees

• Electronics & Telecommunications Res Inst

Inventors

• Park Hyun Seo
• Kwon Yong Jin
• Kim Yun Joo
• Lee An Seok
• Lee Yu Ro
• Lee Heesoo
• Chang Sung Cheol

Classifications

• H04W76/20

  Manipulation of established connections · CPC title

• H04W72/542

  using measured or perceived quality · CPC title

• H04W72/1268 Primary

  of uplink data flows · CPC title

• H04W76/27

  Transitions between radio resource control [RRC] states · CPC title

• H04W28/26

  Resource reservation · CPC title