Method and apparatus for uplink transmission using MIMO in wireless communication system

Patent metadata

Field	Value
Publication number	US-12096406-B2
Application number	US-202318470009-A
Country	US
Kind code	B2
Filing date	Sep 19, 2023
Priority date	Aug 14, 2019
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

A method of a terminal in a wireless communication system is provided. The terminal includes receiving, from a base station, configuration information for a first uplink and configuration information for a second uplink, determining a first maximum number of multi-input and multi-output (MIMO) layers for the first uplink, based on the configuration information for the first uplink, determining a maximum number of layers for a physical uplink shared channel (PUSCH) supported by the terminal to be a second maximum number of MIMO layers for the second uplink, and transmitting, to the base station, the PUSCH by using at least one of the first uplink or the second uplink, based on the determined first maximum number of MIMO layers and the second maximum number of MIMO layers.

First claim

What is claimed is:

1. A method of a terminal in a wireless communication system, the method comprising:
transmitting capability information including a first maximum number of multiple-input and multiple output (MIMO) layers of a first carrier and a second maximum number of MIMO layers of a second carrier uplink, wherein the first carrier is different from the second carrier;
receiving a first radio resource control (RRC) message including configuration information for a normal uplink, the configuration information for the normal uplink including information for a third maximum number of MIMO layers;
receiving a second RRC message;
identifying a fourth maximum number of MIMO layers for a supplementary uplink based on a configuration information for the supplementary uplink, in case that the first RRC message includes the configuration information for the supplementary uplink or the second RRC message includes the configuration information for the supplementary uplink, the configuration information for the supplementary uplink including information for the fourth maximum number of MIMO layers; and
transmitting data of a physical uplink shared channel (PUSCH) using one of the normal uplink based on the third maximum number of MIMO layers or the supplementary uplink based on the fourth maximum number of MIMO layers,
wherein the normal uplink is using the first carrier and the supplementary uplink is using the second carrier.

2. The method of claim 1 , further comprising:
identifying the third maximum number of MIMO layers for the normal uplink, based on the configuration information for the normal uplink.

3. The method of claim 1 , wherein the identifying of the fourth maximum number of MIMO layers comprises, in case that maximum MIMO layers information and maximum rank information are not configured in the configuration information for the supplementary uplink, identifying the maximum number of layers for the PUSCH supported by the terminal for a serving cell to be the fourth maximum number of MIMO layers for a band width part (BWP) of the supplementary uplink.

4. The method of claim 1 , wherein the configuration information for the normal uplink and the configuration information for the supplementary uplink are for a serving cell.

5. A terminal in a wireless communication system, the terminal comprising:
a transceiver; and
at least one controller configured to:
transmit capability information including a first maximum number of multiple-input and multiple output (MIMO) layers of a first carrier and a second maximum number of MIMO layers of a second carrier uplink, wherein the first carrier is different from the second carrier,
receive a first radio resource control (RRC) message including configuration information for a normal uplink including a third maximum number of MIMO layers,
receive a second RRC message,
identify a fourth maximum number of MIMO layers for a supplementary uplink based on a configuration information for the supplementary uplink, in case that the first RRC message includes the configuration information for the supplementary uplink or the second RRC message includes the configuration information for the supplementary uplink, the configuration information for the supplementary uplink including the fourth maximum number of MIMO layers and information related to a bandwidth part (BWP) of the supplementary uplink, and
transmit data of a physical uplink shared channel (PUSCH) using one of the normal uplink and the supplementary uplink,

wherein the normal uplink is using the first carrier and the supplementary uplink is using the second carrier.

6. The terminal of claim 5 , wherein the at least one controller further configured to identify the third maximum number of MIMO layers for the normal uplink, based on the configuration information for the normal uplink.

7. The terminal of claim 5 , wherein the at least one controller is further configured to, in case that maximum MIMO layers information and maximum rank information are not configured in the configuration information for the supplementary uplink, identify the maximum number of layers for the PUSCH supported by the terminal for a serving cell to be the second maximum number of MIMO layers for the BWP of the supplementary uplink.

8. The terminal of claim 5 , wherein the configuration information for the normal uplink and the configuration information for the supplementary uplink are for a serving cell.

9. A method of a base station (BS) in a wireless communication system, the method comprising:
receiving capability information including a first maximum number of multiple-input and multiple output (MIMO) layers of a first carrier and a second maximum number of MIMO layers of a second carrier uplink, wherein the first carrier is different from the second carrier;
transmitting a first radio resource control (RRC) message including configuration information for a normal uplink, the configuration information for the normal uplink including information for a third maximum number of MIMO layers;
transmitting a second RRC message; and
receiving data of a physical uplink shared channel (PUSCH) using one of the normal uplink or a supplementary uplink,
wherein a fourth maximum number of MIMO layers for the supplementary uplink is included in a configuration information for the supplementary uplink,
wherein the configuration information for the supplementary uplink is included in one of the first RRC message or the second RRC message, and
wherein the normal uplink is using the first carrier and the supplementary uplink is using the second carrier.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jung Sangyeob
• Kim Soenghun
• Park Suyoung

Classifications

• H04B7/0413

  MIMO systems · CPC title

• H04W76/27

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

• H04B7/0404 Primary

  the mobile station comprising multiple antennas, e.g. to provide uplink diversity · CPC title

• H04W8/24

  Transfer of terminal data · CPC title

• H04W76/15 Primary

  Setup of multiple wireless link connections · CPC title