公开(公告)号：US20230397140A1

公开(公告)日：2023-12-07

申请号：US18451360

申请日：2023-08-17

Applicant: QUALCOMM Incorporated

Inventor： Liangping MA ,  Xiao Feng WANG ,  Alberto RICO ALVARINO ,  Umesh PHUYAL ,  Jun MA ,  Changhwan PARK ,  Ayan SENGUPTA ,  Juan MONTOJO ,  Peter GAAL ,  Wanshi CHEN ,  Bharat SHRESTHA ,  Huilin XU

IPC: H04W56/00 ,  H04L1/1812 ,  H04L1/08 ,  H04W72/23

CPC classification number: H04W56/004 ,  H04W72/23 ,  H04L1/08 ,  H04L1/1812

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a non-terrestrial network (NTN) entity, a message that is associated with an uplink grant. The UE may select, based at least in part on the message, either a cell-specific offset or an updated offset that is indicated after initial access, as a timing offset that accounts for a propagation delay between a base station of the NTN and the UE. The UE may transmit, to the NTN entity, an uplink communication using the timing offset. Numerous other aspects are described.

公开(公告)号：US20230379964A1

公开(公告)日：2023-11-23

申请号：US18357896

申请日：2023-07-24

Applicant: QUALCOMM Incorporated

Inventor： Bharat SHRESTHA ,  Umesh PHUYAL ,  Xiao Feng WANG ,  Alberto RICO ALVARINO ,  Ayan SENGUPTA ,  Prasad Reddy KADIRI ,  Le LIU

IPC: H04W74/00 ,  H04W74/08 ,  H04L1/1867 ,  H04W80/02 ,  H04L1/1812 ,  H04W72/23

CPC classification number: H04W74/008 ,  H04W74/0841 ,  H04L1/1896 ,  H04W80/02 ,  H04L1/1819 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, otherwise known as a user equipment (UE) may transmit a random access message (e.g., a message 3) associated with a random access procedure. A hybrid automatic repeat request (HARQ) feedback may be disabled for the random access procedure. The UE may initiate a contention resolution window associated with the random access procedure for a first downlink data channel transmission of a set of downlink data channel transmissions associated with the random access procedure. The UE may receive, during the contention resolution window, the first downlink data channel transmission carrying a contention resolution medium access control-control element (MAC-CE). The UE may transmit acknowledgment information for the first downlink data channel transmission carrying the contention resolution MAC-CE based on an indication to enable the HARQ feedback.

公开(公告)号：US20230319929A1

公开(公告)日：2023-10-05

申请号：US17657334

申请日：2022-03-30

Applicant: QUALCOMM Incorporated

Inventor： Bharat SHRESTHA ,  Mungal Singh DHANDA ,  Umesh PHUYAL

IPC: H04W76/16 ,  H04W36/00 ,  H04W76/19

CPC classification number: H04W76/16 ,  H04W36/0027 ,  H04W36/0069 ,  H04W76/19 ,  H04W36/00835

Abstract: Method and apparatus for an RRC reestablishment procedure between a TN and an NTN. The apparatus may be on a first network associated with one of the TN or the NTN. The apparatus transmits a RRC connection request to establish a connection with a second network associated with one of the NTN or the TN. The apparatus receives an RRC reconnection message from a network entity associated with the second network. The apparatus transmits an RRC reconnection complete message to the network entity associated with one of the NTN or the TN of the second network. The apparatus may transmit a registration update request to the network entity associated with one of the NTN or the TN of the second network.

公开(公告)号：US20230291816A1

公开(公告)日：2023-09-14

申请号：US17654402

申请日：2022-03-10

Applicant: QUALCOMM Incorporated

Inventor： Toru UCHINO ,  Umesh PHUYAL ,  Bharat SHRESTHA ,  Alberto RICO ALVARINO ,  Xiao Feng WANG ,  Vivek RAJENDRAN

IPC: H04L69/22 ,  H04L69/18 ,  H04L65/65 ,  H04W36/00

CPC classification number: H04L69/22 ,  H04L65/608 ,  H04L69/18 ,  H04W36/0072

Abstract: A receiver receives a first message including a first PDCP SN. The receiver may receive a second message including a second PDCP SN. The receiver may derive a second RTP SN based on at least one of a first RTP SN of the first message, the first PDCP SN, the second PDCP SN, or an RTP SN field of a second PDCP header composing the second message.

公开(公告)号：US20230276343A1

公开(公告)日：2023-08-31

申请号：US18166434

申请日：2023-02-08

Applicant: QUALCOMM Incorporated

Inventor： Bharat SHRESTHA ,  Umesh PHUYAL ,  Mungal Singh DHANDA

IPC: H04W48/04 ,  H04W48/08 ,  H04W36/00

CPC classification number: H04W48/04 ,  H04W48/08 ,  H04W36/0061 ,  H04W88/10

Abstract: Apparatus, methods, and computer program products for tracking area code (TAC) based cell barring. An example method at a user equipment (UE) may include receiving, from at least one cell, a system information block (SIB) comprising a tracking area list associated with a non-terrestrial network (NTN) and the at least one cell, the SIB not including a tracking area code associated with a terrestrial network (TN) or the NTN, a supported network of the UE corresponding to the TN. The example method may further include skipping, based on the tracking area code being absent and the tracking area list being present or both the tracking area code and the tracking area list being absent in the SIB, a selection of the at least one cell for subsequent communication.

公开(公告)号：US20230247577A1

公开(公告)日：2023-08-03

申请号：US18296732

申请日：2023-04-06

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Seyedkianoush HOSSEINI ,  Xiao Feng WANG ,  Liangping MA ,  Ayan SENGUPTA ,  Jun MA ,  Huilin XU ,  Peter GAAL ,  Bharat SHRESTHA

IPC: H04W56/00 ,  H04L1/1812 ,  H04W72/0446 ,  H04L27/26 ,  H04W74/08 ,  H04W72/23

CPC classification number: H04W56/009 ,  H04W56/005 ,  H04L1/1819 ,  H04W72/0446 ,  H04L27/26025 ,  H04W74/0833 ,  H04W72/23 ,  H04W84/06

Abstract: A scheduling offset between an uplink and downlink radio frame timing structure of a user equipment (UE) may be updated to provide for more efficient utilization of hybrid automatic repeat request (HARQ) processes in a non-terrestrial network. For instance, different UEs may experience different round trip delays (RTDs) with a non-terrestrial cell. Different UEs may be configured with different scheduling offsets such that scheduling delays may be reduced and HARQ processes identifiers may be reused more rapidly. Additionally or alternatively, wireless communications systems may define one or more separation distances (or timing thresholds) for timing between communications and HARQ processes may be reused based on the separation distance threshold (e.g., such that a satellite may reuse a HARQ process ID for two scheduled communications that have not yet been performed by the UE).

公开(公告)号：US20230134628A1

公开(公告)日：2023-05-04

申请号：US17582696

申请日：2022-01-24

Applicant: QUALCOMM Incorporated

Inventor： Amer CATOVIC ,  Osama LOTFALLAH ,  Lenaig Genevieve CHAPONNIERE ,  Stephen William EDGE ,  Bharat SHRESTHA ,  Francesco PICA

IPC: H04W48/18 ,  H04W48/04

Abstract: A method of wireless communication by a user equipment (UE) includes determining whether the UE transitioned between an international area and a national area. The method also includes triggering a public land mobile network (PLMN) selection of a network for receiving service, in response to the UE having transitioned between the international area and the national area. A method of wireless communication by a UE includes performing a PLMN search for a higher priority PLMN. The method also includes determining a list of candidate PLMNs based on the search. The method further includes selecting a PLMN from among the list of candidate PLMNs in response to an identity of a serving PLMN not being a shared mobile country code (MCC). The candidate PLMNs have either an MCC the same as an identity of the serving PLMN or a shared MCC. The selected PLMN has a higher priority than the serving PLMN.

公开(公告)号：US20230133633A1

公开(公告)日：2023-05-04

申请号：US17901673

申请日：2022-09-01

Applicant: QUALCOMM Incorporated

Inventor： Changhwan PARK ,  Bharat SHRESTHA ,  Liangping MA ,  Xiao Feng WANG ,  Peter GAAL

IPC: H04W36/00 ,  H04W56/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a source base station, configuration information for a handover, wherein the configuration information indicates, for a target non-terrestrial cell, timing and synchronization parameters including a scheduling timing offset, a round trip time between a reference point and a target base station associated with the target non-terrestrial cell, satellite ephemeris information, an ephemeris validity duration associated with the satellite ephemeris information, common timing advance parameters, and a common timing advance validity duration associated with the common timing advance parameters. The UE may perform the handover with the target base station associated with the target non-terrestrial cell based at least in part on the timing and synchronization parameters for the target non-terrestrial cell. Numerous other aspects are described.

公开(公告)号：US20230039127A1

公开(公告)日：2023-02-09

申请号：US17392955

申请日：2021-08-03

Applicant: QUALCOMM Incorporated

Inventor： Bharat SHRESTHA ,  Liangping MA ,  Ayan SENGUPTA ,  Umesh PHUYAL ,  Changhwan PARK ,  Xiao Feng WANG ,  Alberto RICO ALVARINO

IPC: H04W72/12 ,  H04W80/02 ,  H04W56/00 ,  H04L1/18 ,  H04W72/04 ,  H04W74/08

Abstract: Certain aspects of the present disclosure provide techniques for wireless communications by a user equipment (UE). The UE detects one or more conditions are met for transmitting a medium access control (MAC) control element (CE) providing assistance information to a network entity for scheduling. In response to the detection, the UE then takes one or more actions to obtain uplink (UL) resources for transmitting the MAC CE.

公开(公告)号：US20220369317A1

公开(公告)日：2022-11-17

申请号：US17662059

申请日：2022-05-04

Applicant: QUALCOMM Incorporated

Inventor： Liangping MA ,  Xiao Feng WANG ,  Alberto RICO ALVARINO ,  Huilin XU ,  Ayan SENGUPTA ,  Changhwan PARK ,  Peter GAAL ,  Bharat SHRESTHA ,  Umesh PHUYAL ,  Jun MA

IPC: H04W72/04 ,  H04B1/713

Abstract: Aspects of the present disclosure provide systems and methods for informing a user equipment (UE) that which beam the UE is being served, for example, such as in relation to bandwidth part (BWP) switching in a non-terrestrial network (NTN). According to certain aspects, a network entity may transmit to a user equipment (UE) signaling indicating at least one BWP switch. The network entity provides, to the UE, an indication of a serving synchronization signal block (SSB) for the UE to use after the BWP switch.