Systems, apparatuses, and methods for semi-persistent scheduling in communication networks

Patent metadata

Field	Value
Publication number	US-12010678-B2
Application number	US-202217649086-A
Country	US
Kind code	B2
Filing date	Jan 27, 2022
Priority date	Jan 27, 2022
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

A method for communication between a communication device and a base station in a private 5G network where the communication device and the base station have a base period of transmission defined there between as a minimal scheduling period, comprises transmitting location data of the communication device in a last subframe of a current communication period of the communication device. The method further comprises receiving resource allocation data including a transmission period widening factor for one or more subsequent communication periods of the communication device and computing a semi-persistent scheduling (SPS) period as a subsequent communication period of the one or more subsequent communication periods, based on the transmission period widening factor and the base period of transmission. Uplink communication is performed in the one or more subsequent periods, based on the resource allocation data and the SPS period.

First claim

We claim:

1. A method for communication between a communication device and a base station in a private 5G network, the communication device and the base station having a base period of transmission defined there between as a minimal scheduling period, the method comprising:
transmitting location data of the communication device in a last subframe of a current communication period of the communication device;
receiving resource allocation data including a transmission period widening factor for one or more subsequent communication periods of the communication device,
wherein the transmission period widening factor defines a widening of the base period of transmission;
computing a semi-persistent scheduling (SPS) period as a subsequent communication period of the one or more subsequent communication periods, based on the transmission period widening factor and the base period of transmission; and
performing uplink communication in the one or more subsequent periods, based on the resource allocation data and the SPS period,
wherein the transmission period widening factor is obtained by solving an optimization problem optimizing an expectation of data to be carried by one or more SPS channels in the subsequent period of communication of the communication device.

2. The method of claim 1 , further comprising transmitting a request for radio resource allocation in the current period of communication.

3. The method of claim 2 , further comprising delaying a renewal of the request for resource allocation till the SPS period lapses.

4. The method of claim 1 , wherein the resource allocation data further comprises a modulation and coding scheme (MCS) for the communication device.

5. The method of claim 1 , wherein the subsequent period of communication is defined by a frame structure comprising control signaling in one or more initial subframes followed by data frames and location data in the last subframe, wherein the transmission period widening factor is received as part of the control signaling.

6. The method of claim 5 , wherein the resource allocation data is received by the communication device through the first subframe of the subsequent communication period of the communication device and wherein the uplink communication is performed in all but the last subframe of the remainder of the sub-frames of the subsequent communication period of the communication device.

7. The method of claim 1 , further comprising transmitting a device identifier of the communication device, wherein the device identifier is utilized for determining resource allocation data for the communication device.

8. The method of claim 1 , wherein the communication device is a thing in an industrial Internet of Things based setup.

9. A communication device for communicating with a base station in a private 5G network, the communication device and the base station having a base period of transmission defined there between as a minimal scheduling period, the communication device comprising: circuitry configured to:
transmit location data of the communication device in a last subframe of a current communication period of the communication device;
receive resource allocation data including a transmission period widening factor for one or more subsequent communication periods of the communication device,
wherein the transmission period widening factor defines a widening of the base period of transmission;
compute a semi-persistent scheduling (SPS) period as a subsequent communication period of the one or more subsequent communication periods, based on the transmission period widening factor and the base period of transmission; and
perform uplink communication in the one or more subsequent periods, based on the resource allocation data and the SPS period,
wherein the transmission period widening factor is obtained by solving an optimization problem optimizing an expectation of data to be carried by one or more SPS channels in the subsequent period of communication of the communication device.

10. The communication device of claim 9 , wherein the circuitry is further configured to transmit a request for radio resource allocation in the current period of communication.

11. The communication device of claim 10 , wherein the circuitry is further configured to delay a renewal of the request for resource allocation till the SPS period lapses.

12. The communication device of claim 9 , wherein the resource allocation data further comprises a modulation and coding scheme (MCS) for the communication device.

13. The communication device of claim 9 , wherein the subsequent period of communication is defined by a frame structure comprising control signalling in one or more initial subframes followed by data frames and location data in the last subframe, wherein the transmission period widening factor is received as part of the control signalling.

14. The communication device of claim 13 , wherein the circuitry is configured to receive the resource allocation data through the first subframe of the subsequent communication period of the communication device and wherein the uplink communication is performed in all but the last subframe of the remainder of the sub-frames of the subsequent communication period of the communication device.

15. The communication device of claim 9 , wherein the circuitry is further configured to transmit a device identifier of the communication device, wherein the device identifier is utilized to determine resource allocation data for the communication device.

16. The communication device of claim 9 , wherein the communication device is a thing in an industrial Internet of Things based setup.

17. A non-transitory computer readable medium having stored thereon computer executable instructions which when executed by one or more processors of a communication device, cause the communication device to perform a method for communicating with a base station in a private 5G network, the communication device and the base station having a base period of transmission defined there between as a minimal scheduling period, the method comprising:
transmitting location data of the communication device in a last subframe of a current communication period of the communication device;
receiving resource allocation data including a transmission period widening factor for one or more subsequent communication periods of the communication device,
wherein the transmission period widening factor defines a widening of the base period of transmission;
computing a semi-persistent scheduling (SPS) period as a subsequent communication period of the one or more subsequent communication periods, based on the transmission period widening factor and the base period of transmission; and
performing uplink communication in the one or more subsequent periods, based on the resource allocation data and the SPS period,
wherein the transmission period widening factor is obtained by solving an optimization problem optimizing an expectation of data to be carried by one or more SPS channels in the subsequent period of communication of the communication device.

18. The non-transitory computer readable medium of claim 17 , wherein the method further comprises transmitting a request for radio resource allocation in the current period of communication.

Assignees

• Mitsubishi Electric Res Laboratories Inc

Inventors

• Kim Kyeong Jin
• Song Hao
• Guo Jianlin
• Orlik Philip
• Parsons Kieran

Classifications

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title

• H04L1/0003

  by switching between different modulation schemes · CPC title

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/541

  using the level of interference · CPC title

• H04W72/20

  Control channels or signalling for resource management · CPC title