Systems and methods for uplink data scheduling in wireless communication systems

Patent metadata

Field	Value
Publication number	US-11382113-B2
Application number	US-201816966140-A
Country	US
Kind code	B2
Filing date	Mar 8, 2018
Priority date	Mar 8, 2018
Publication date	Jul 5, 2022
Grant date	Jul 5, 2022

Abstract

In wireless communication, uplink communication by a wireless communication system user equipment may include providing data packets by a data source in the user equipment, detecting a pattern relating to uplink transmission of the plurality of data packets, and scheduling transmission of the plurality of data packets by the user equipment. One or more aspects of scheduling transmission of the plurality of data packets may be based on the detected pattern.

First claim

What is claimed is:

1. A method for communication by a wireless communication system user equipment (UE), comprising:
providing at periodic time intervals a plurality of data packets by a data source in the UE in association with a resource request;
providing an initial periodic resource grant in response to the resource request;
transmitting, during each of a first plurality of the periodic time intervals, each of the plurality of data packets in a corresponding one of a plurality of transport blocks using the initial periodic resource grant;
detecting, over the first plurality of the periodic time intervals, a pattern of sizes of the plurality of data packets;
providing, in response to a detected pattern of data packet sizes, an increased periodic resource grant having a greater size than the initial periodic resource grant; and
transmitting, during each of a second plurality of the periodic time intervals, the plurality of data packets aggregated together in a single transport block using the increased periodic resource grant.

2. The method of claim 1 , further comprising:
providing a first data packet in an output buffer by the data source in association with a first resource request;
providing a second data packet in the output buffer by the data source in association with a second resource request;
providing a first resource grant in response to the first resource request;
providing a second resource grant in response to the second resource request;
detecting a pattern based on a size of the first data packet and a size of the second data packet;
providing, in response to a detected pattern of sizes of the first and second data packets, an increased resource grant having a greater size than the size of the first data packet and the size of the second data packet; and
transmitting the first and second data packets aggregated together in a single transport block using the increased resource grant.

3. The method of claim 1 , further comprising:
providing a lower-priority data packet by the data source in association with a first resource request;
providing a higher-priority data packet by the data source in association with a second resource request;
providing a first resource grant associated with the lower-priority data packet and a second resource grant associated with the higher-priority data packet; and
transmitting the higher-priority data packet using the first resource grant and transmitting the lower-priority data packet using the second resource grant.

4. The method of claim 1 , further comprising:
detecting, over the first plurality of the periodic time intervals, a pattern of data packets of increasing size and corresponding periodic resource grants of insufficient size to transmit the data packets of increasing size, wherein the increased periodic resource grant is provided in response to a detected pattern of data packets of increasing size and corresponding periodic resource grants of insufficient size to transmit the data packets of increasing size; and
transmitting, during each of a third plurality of the periodic time intervals, a data packet using the increased periodic resource grant.

5. The method of claim 1 , further comprising:
providing a first data packet in an output buffer by the data source in association with a first resource request;
providing a second data packet in the output buffer by the data source in association with a second resource request, the second data packet having a higher priority and a larger size than the first data packet;
providing a first resource grant in response to the first resource request, the first resource grant having a size sufficient to transmit the first data packet and insufficient to transmit the first data packet and the second data packet;
providing a second resource grant in response to the second resource request, the second resource grant having a size sufficient to transmit the second data packet and insufficient to transmit the second data packet and the first data packet;
detecting a pattern of the second data packet having the higher priority and the larger size than the first data packet; and
while deferring transmission of the first data packet, transmitting the second data packet using the second resource grant.

6. The method of claim 1 , further comprising:
providing a first data packet in an output buffer by the data source in association with a first resource request, the first data packet having a destination address;
providing a second data packet in the output buffer by the data source, the second data packet having the destination address;
providing a resource grant in response to the first resource request;
detecting the first and second data packets share the destination address and the resource grant has a size sufficient to transmit the first and second data packets; and
transmitting the first and second data packets aggregated together in a single transport block in response to detecting the first and second data packets share the destination address and the size of the resource grant is sufficient to transmit the first and second data packets.

7. The method of claim 1 , further comprising:
providing a plurality of data packets in an output buffer by the data source in association with a corresponding plurality of resource requests, each data packet having a delay budget;
detecting expiry of the delay budget of at least one data packet to which resources have been allocated;
refraining from transmitting the at least one data packet in response to detecting expiry of the delay budget; and
return the resources to a resource pool.

8. A system for communication by a wireless communication system user equipment (UE), comprising:
a data-layer subsystem having a data source configured to provide at periodic time intervals a plurality of data packets for transmission in association with a resource request;
a transmission-layer subsystem having uplink path circuitry and operable under control of at least one processing system, the at least one processing system configured to:
provide an initial periodic resource grant in response to the resource request;
transmit, during each of a first plurality of the periodic time intervals, each of the plurality of data packets in a corresponding one of a plurality of transport blocks using the initial periodic resource grant;
detect, over the first plurality of the periodic time intervals, a pattern of sizes of the plurality of data packets;
provide, in response to a detected pattern of data packet sizes, an increased periodic resource grant having a greater size than the initial periodic resource grant; and
transmit, during each of a second plurality of the periodic time intervals, the plurality of data packets aggregated together in a single transport block using the increased periodic resource grant.

9. The system of claim 8 , wherein the at least one processing system is further configured to:
provide a first data packet in an output buffer by the data source in association with a first resource request;
provide a second data packet in the output buffer by the data source in association with a second resource request;
provide a first resource grant in response to the first resource request;
provide a second resource grant in response to the second resource request;
detect a pattern based on a size of the first data packet and a size of the second data packet;
provide, in response to a detected pattern of sizes of the first and second data packets, an increased resource grant having a greater size than the size of the first data packet and the size of the second data packet; and
transmit the first and second data packets aggregated together in a

Assignees

• Qualcomm Inc

Inventors

• Liu Haiqin
• Xiao Gang
• Wu Peng
• Santhanam Arvind
• Bathwal Saket
• Upretee Rudhir
• Chen Xing
• Long Xiaojian
• Maheshwari Shailesh

Classifications

• H04W72/56

  based on priority criteria · CPC title

• H04W72/535 Primary

  based on resource usage policies · CPC title

• H04W72/52 Primary

  based on load · CPC title

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/02

  Selection of wireless resources by user or terminal · CPC title