公开(公告)号：US20220360419A1

公开(公告)日：2022-11-10

申请号：US17762514

申请日：2020-09-24

Applicant: Qualcomm Incorporated

Inventor： Yiqing CAO ,  Bin HAN ,  Jing LEI

IPC: H04L5/00 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. Random access channel (RACH) occasions may be scheduled on each component carrier (CC) of a carrier aggregation (CA) configuration that includes both a time division duplexing (TDD) TD Raid band and at least one frequency division duplexing (FDD) band based on a synchronization signal/physical broadcast channel block (SSB) received in the TDD band. In some cases, the TDD band may be used to configure the RACH occasions in same and/or different CCs. Additionally or alternatively, the FDD band may configure the RACH occasions on its uplink CC based on SSBs received on other CCs. Additionally, the RACH occasions may be configured such that the UE avoids unavailable uplink slots when transmitting a first RACH message in a RACH occasion.

公开(公告)号：US20220312315A1

公开(公告)日：2022-09-29

申请号：US17211673

申请日：2021-03-24

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Yongjun KWAK ,  Yuchul KIM ,  Jing LEI ,  Hwan Joon KWON

IPC: H04W52/02 ,  H04W68/00

Abstract: This disclosure provides methods, devices and systems for harvesting radio frequency (RF) energy based on an energy harvesting EH indication signal. A transmitting device such as a base station may transmit, to a user equipment (UE), an EH indication signal that indicates a time period when radio frequency (RF) energy is to be available. The UE may receive the EH indication signal and harvest RF energy from the RF signal during the time period. The transmitting device may transmit an RF signal to the UE or another UE during the time period. The UE may receive a wake up indication indicating a second time period to monitor a control channel. The UE may split power between energy harvesting and receiving RF signals during the second time period.

公开(公告)号：US20220294574A1

公开(公告)日：2022-09-15

申请号：US17754184

申请日：2019-10-28

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Ruiming ZHENG ,  Linhai HE

IPC: H04L1/18 ,  H04L5/00 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may configure a physical downlink control channel (PDCCH) component of a message B (msgB) communication to include a first portion of the signaling information for physical uplink control channel (PUCCH) for hybrid automatic repeat request (HARQ) feedback associated with the msgB communication and the signaling information for HARQ combining of msgB. The BS may configure a physical downlink shared channel (PDSCH) component of the msgB communication to include a second portion of the signaling information for PUCCH and msgB HARQ combining. The distributed mapping for the signaling information to the PDCCH and PDSCH components of msgB can be indicated by system information, RRC signaling, or hard coded in specifications. The BS may transmit the msgB communication to one or more UEs. Numerous other aspects are provided.

公开(公告)号：US20220279593A1

公开(公告)日：2022-09-01

申请号：US17597827

申请日：2019-08-16

Applicant: QUALCOMM Incorporated

Inventor： Ruiming ZHENG ,  Linhai HE ,  Jing LEI

IPC: H04W74/08 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a random access radio network temporary identifier (RA-RNTI), associated with a random access channel (RACH) procedure, based at least in part on: a radio frame index associated with a RACH occasion in which a RACH preamble is transmitted during the RACH procedure, or a type of the RACH procedure; and receive a random access message based at least in part on the RA-RNTI. Numerous other aspects are provided.

公开(公告)号：US20220279575A1

公开(公告)日：2022-09-01

申请号：US17632392

申请日：2020-08-04

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Peter GAAL ,  Wanshi CHEN ,  Linhai HE ,  Ruiming ZHENG ,  Yi HUANG ,  Joseph Binamira SORIAGA

IPC: H04W74/08 ,  H04W56/00 ,  H04W76/20 ,  H04L1/00

Abstract: Certain aspects of the present disclosure provide techniques for a configurable mode for a response to random access message. A method that may be performed by a user equipment (UE) includes receiving an indication from a base station (BS) that the BS operates according to a first mode in which the BS unicasts a RACH response during a two-step RACH procedure or a second mode in which the BS multicasts the RACH response. The RACH response includes a PDCCH and PDSCH. The UE sends a RACH message to the BS comprising a preamble and payload. The UE monitors and decodes the PDCCH of the RACH response based on the indicated first mode or second mode. The UE decodes the PDSCH of the RACH response and sends feedback to the BS based on the indicated first mode or second mode.

公开(公告)号：US20220279572A1

公开(公告)日：2022-09-01

申请号：US17632160

申请日：2019-08-02

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Yiqing CAO ,  Wanshi CHEN ,  Peter GAAL

IPC: H04W74/00 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information identifying configurations associated with respective uplink carriers for a random access channel (RACH) message, wherein a configuration associated with a first uplink carrier, of the respective uplink carriers, is different than a configuration associated with a second uplink carrier of the respective uplink carriers. The UE may select a set of uplink carriers, of the respective uplink carriers, on which to transmit the RACH message based at least in part on the configuration information. The UE may transmit the RACH message on the selected set of uplink carriers in accordance with the configuration information. Numerous other aspects are provided.

公开(公告)号：US20220272769A1

公开(公告)日：2022-08-25

申请号：US17635453

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Yi HUANG ,  Wanshi CHEN ,  Linhai HE ,  Ruiming ZHENG ,  Peter GAAL ,  Joseph Binamira SORIAGA

IPC: H04W74/08 ,  H04L1/18 ,  H04L5/00 ,  H04W72/12 ,  H04W72/14

Abstract: Certain aspects of the present disclosure provide techniques for a hybrid automatic repeat request (HARQ) procedure for the random access channel (RACH) response message in a two-step RACH procedure. A method that may be performed by a user equipment (UE) includes sending a RACH message to a base station (BS) during a two-step RACH procedure. The RACH message includes a RACH preamble and a RACH payload. The UE monitors a RACH response message from the BS during a random access response (RAR) window. The UE transmits a retransmission of the RACH message, an acknowledgement (ACK) to the RACH response message, a negative acknowledgment (NACK) to the RACH response message, or does not transmit, to the BS based on whether a RACH response message carrying a success RAR or a fallback RAR, or no RACH response message, is received from the BS during the window.

公开(公告)号：US20220247525A1

公开(公告)日：2022-08-04

申请号：US17629199

申请日：2019-08-01

Applicant: Yiqing CAO ,  Wanshi CHEN ,  Jing LEI ,  QUALCOMM Incorporated

Inventor： Yiqing CAO ,  Wanshi CHEN ,  Jing LEI

IPC: H04L5/00 ,  H04W74/08 ,  H04L5/14

Abstract: Certain aspects of the present disclosure provide techniques for cross-carrier feedback.

公开(公告)号：US20220224406A1

公开(公告)日：2022-07-14

申请号：US17145967

申请日：2021-01-11

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Jing LEI ,  Liangping MA ,  Xiao Feng WANG

IPC: H04B7/185 ,  H04B7/195 ,  H04W24/08 ,  H04L5/00

Abstract: In an aspect, a satellite-based non-terrestrial network configures multiple preconfigured uplink resources (PURs) for a user equipment (UE). The PURs may be configured one PUR per beam, one PUR per cell, or one PUR for multiple cells. A serving cell of the UE and one or more cells adjacent to the serving cell may each have an associated PUR. The UE selects one of the multiple PURs and sends a transmission using the selected PUR without the UE have a connection to the network. The network sends an ACK in response to the transmission. Either the UE or the network can specify that the UE is to transmit using a first PUR and receive the ACK on a second PUR. The UE can specify when and which PUR to use in the transmission and the network can specify when and which PUR to use in the ACK.

公开(公告)号：US20220191948A1

公开(公告)日：2022-06-16

申请号：US17598127

申请日：2020-05-01

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Seyong PARK ,  Linhai HE ,  Ruiming ZHENG ,  Joseph Binamira SORIAGA ,  Wanshi CHEN ,  Tingfang JI

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04L5/00

Abstract: Aspects described herein relate to receiving a configuration indicating multiple association rules associating random access preambles and payload formats, selecting, as part of a random access procedure, a random access preamble from the random access preambles for transmitting over a random access occasion, determining, based at least in part on at least one of the association rules in the configuration, a payload format associated with the random access preamble and a corresponding payload resource unit, and transmitting the random access preamble over the random access occasion and, according to the payload format, an associated payload over the corresponding payload resource unit. Multiplexing of payload resource units with same or different payload formats can be performed in time, frequency and code domains, based on the received configuration.