公开(公告)号：US11968570B2

公开(公告)日：2024-04-23

申请号：US15703460

申请日：2017-09-13

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Ajay Gupta ,  Vinod Menon ,  Tao Luo

IPC: H04W36/00 ,  H04W24/04 ,  H04W36/08 ,  H04W72/044 ,  H04W74/0833

CPC classification number: H04W36/0066 ,  H04W24/04 ,  H04W36/0077 ,  H04W36/0079 ,  H04W74/0833 ,  H04W36/08 ,  H04W72/046

Abstract: Techniques are disclosed for handover of a user equipment (UE) from a serving base station to a target base station. A target base station may use one or more directional beams to establish wireless communication links with UEs within a coverage area of the target base station. Directional beams may create a narrow-beam, high-bandwidth connection with a UE in a limited geographic area. Handover procedures include some latency between when a target base station dedicates resources to a UE and when the UE executes a communication via those dedicated resources. To compensate for latencies in a handover procedure and for the geographic limitations of directional beams, a target base station may assign multiple directional beams to the UE during a handover procedure. Each directional beam may be associated with access parameters used by the UE to generate messages (e.g., a RACH message) during the handover procedure.

公开(公告)号：US11729833B2

公开(公告)日：2023-08-15

申请号：US17306651

申请日：2021-05-03

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Ajay Gupta ,  Sumeeth Nagaraja ,  Vinod Menon

IPC: H04W74/08 ,  H04W72/21 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04W72/21 ,  H04W74/004 ,  H04W74/006 ,  H04W74/008

Abstract: The present disclosure describes a method, an apparatus, and a computer-readable medium for a random access channel (RACH) procedure at a user equipment. For example, the method may select a two-step RACH procedure or a four-step RACH procedure at the UE based at least on RACH configuration information received from a base station or the RACH configuration information at the UE. The example method may further include transmitting, from the UE, one or more messages associated with the two-step RACH procedure or the four-step RACH procedure based on the selection.

公开(公告)号：US10999874B2

公开(公告)日：2021-05-04

申请号：US16549766

申请日：2019-08-23

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Ajay Gupta ,  Sumeeth Nagaraja ,  Vinod Menon

IPC: H04W74/08 ,  H04W72/04 ,  H04W74/00

Abstract: The present disclosure describes a method, an apparatus, and a computer-readable medium for a random access channel (RACH) procedure at a user equipment. For example, the method may select a two-step RACH procedure or a four-step RACH procedure at the UE based at least on RACH configuration information received from a base station or the RACH configuration information at the UE. The example method may further include transmitting, from the UE, one or more messages associated with the two-step RACH procedure or the four-step RACH procedure based on the selection.

公开(公告)号：US10433342B2

公开(公告)日：2019-10-01

申请号：US15623001

申请日：2017-06-14

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Ajay Gupta ,  Sumeeth Nagaraja ,  Vinod Menon

IPC: H04W72/04 ,  H04W74/00 ,  H04W74/08

Abstract: The present disclosure describes a method, an apparatus, and a computer-readable medium for a random access channel (RACH) procedure at a user equipment. For example, the method may select a two-step RACH procedure or a four-step RACH procedure at the UE based at least on RACH configuration information received from a base station or the RACH configuration information at the UE. The example method may further include transmitting, from the UE, one or more messages associated with the two-step RACH procedure or the four-step RACH procedure based on the selection.

公开(公告)号：US20180084473A1

公开(公告)日：2018-03-22

申请号：US15703460

申请日：2017-09-13

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Ajay Gupta ,  Vinod Menon ,  Tao Luo

IPC: H04W36/30 ,  H04W24/04 ,  H04W74/08

CPC classification number: H04W36/30 ,  H04W24/04 ,  H04W36/0077 ,  H04W36/08 ,  H04W72/046 ,  H04W74/0833

Abstract: Techniques are disclosed for handover of a user equipment (UE) from a serving base station to a target base station. A target base station may use one or more directional beams to establish wireless communication links with UEs within a coverage area of the target base station. Directional beams may create a narrow-beam, high-bandwidth connection with a UE in a limited geographic area. Handover procedures include some latency between when a target base station dedicates resources to a UE and when the UE executes a communication via those dedicated resources. To compensate for latencies in a handover procedure and for the geographic limitations of directional beams, a target base station may assign multiple directional beams to the UE during a handover procedure. Each directional beam may be associated with access parameters used by the UE to generate messages (e.g., a RACH message) during the handover procedure.

公开(公告)号：US12010729B2

公开(公告)日：2024-06-11

申请号：US18316323

申请日：2023-05-12

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Ajay Gupta ,  Sumeeth Nagaraja ,  Vinod Menon

IPC: H04W74/0833 ,  H04W72/21 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04W72/21 ,  H04W74/004 ,  H04W74/006 ,  H04W74/008

Abstract: The present disclosure describes a method, an apparatus, and a computer-readable medium for a random access channel (RACH) procedure at a user equipment. For example, the method may select a two-step RACH procedure or a four-step RACH procedure at the UE based at least on RACH configuration information received from a base station or the RACH configuration information at the UE. The example method may further include transmitting, from the UE, one or more messages associated with the two-step RACH procedure or the four-step RACH procedure based on the selection.