-
公开(公告)号:US12245122B2
公开(公告)日:2025-03-04
申请号:US17616767
申请日:2020-06-02
Applicant: Qualcomm Incorporated
Inventor: Yiqing Cao , Jing Lei , Wanshi Chen
Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may communicate with multiple beacon devices (e.g., road side beacons), where messages from the road side beacons may be transmitted over a sidelink communications link and may be used to determine a speed and/or location of the wireless device. In some examples, the messages may carry public safety information, location information, navigation information, or other types of information, which may be used, for example, to notify the wireless device of a nearby event, to enable navigation, or the like. When receiving messages from the road side beacons, the wireless device may report a status to a base station, which may determine a relationship between transmissions from the wireless device and predict future transmissions based on the relationship. As a result, the base station may modify communications parameters in accordance with the status of the wireless device.
-
公开(公告)号:US12216212B2
公开(公告)日:2025-02-04
申请号:US17757931
申请日:2020-01-14
Applicant: QUALCOMM Incorporated
Inventor: Jun Ma , Qiang Wu , Huilin Xu , Xiao Feng Wang , Iyab Issam Sakhnini , Dan Zhang , Yiqing Cao
Abstract: Disclosed are techniques for positioning. A receiver measures a time of arrival (ToA) of a positioning reference signal (PRS) transmission of a first PRS sequence transmitted by a first transmitter, measures a ToA of a PRS transmission of a second PRS sequence transmitted by a second transmitter, and determines an observed time difference of arrival (OTDOA) as a difference between the ToA of the PRS transmission of the first PRS sequence and the ToA of the PRS transmission of the second PRS sequence, wherein the OTDOA is less than half a maximum differential delay expected between the PRS transmission of the first PRS sequence and the PRS transmission of the second PRS sequence, and wherein a repetition duration of the first PRS sequence and the second PRS sequence is greater than 10 milliseconds (ms) and at least twice the maximum differential delay.
-
公开(公告)号:US20250016817A1
公开(公告)日:2025-01-09
申请号:US18712225
申请日:2022-01-10
Applicant: QUALCOMM INCORPORATED
Inventor: Yi Huang , Juan Montojo , Wei Yang , Peter Gaal , Yiqing Cao
IPC: H04W72/563
Abstract: Methods, systems, and devices for wireless communication are described. In some systems, a user equipment (UE) may receive one or more signals indicating first and second uplink messages that at least partially overlap in time. The first uplink message may be associated with a first set of parameters and a first quantity of antenna ports and the second uplink message may be associated with a second set of parameters and a second quantity of antenna ports. The UE may transmit the first and second uplink messages using a third set of scheduling parameters based on a sum of the first quantity and the second quantity of antenna ports being greater than a quantity of available radio frequency (RF) chains at the UE. The third set of scheduling parameters may be associated with a third quantity of antenna ports that is less than the sum of the first and second quantities.
-
公开(公告)号:US12117537B2
公开(公告)日:2024-10-15
申请号:US17793524
申请日:2020-02-07
Applicant: QUALCOMM Incorporated
Inventor: Jun Ma , Xiao Feng Wang , Qiang Wu , Huilin Xu , Dan Zhang , Iyab Issam Sakhnini , Yiqing Cao
CPC classification number: G01S19/256 , G01S5/10 , H04W64/00 , H04W84/06
Abstract: Satellites in a non-terrestrial network may provide positioning reference signals (PRS) to user equipment (UE), with which the UE may determine its position using propagation delay difference measurements, such as Time Difference of Arrival (TDOA) measurement. Due to the large distances between satellites and the UE, the propagation delay differences in the PRS received from satellites may exceed half a radio frame, resulting in a frame level timing ambiguity in the differential measurements. The satellites transmit secondary PRS, along with primary PRS, that include timing information to resolve frame level timing ambiguity of the primary PRS. The positioning occasions in the secondary PRS, for example, may be aligned with corresponding positioning occasions primary PRS within each radio frame, and are transmitted with a periodicity that is an integer multiple (greater than 1) of that of the primary PRS to resolve the frame level timing ambiguity of the primary PRS.
-
公开(公告)号:US12041580B2
公开(公告)日:2024-07-16
申请号:US17594589
申请日:2020-05-15
Applicant: QUALCOMM Incorporated
Inventor: Yiqing Cao , Xiao Feng Wang , Huilin Xu
CPC classification number: H04W68/02 , H04L5/0048
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication that a high Doppler configuration for UE paging is activated. The UE may detect, based at least in part on receiving the indication that the high Doppler configuration is activated, a phase tracking reference signal (PTRS) for a paging communication. Numerous other aspects are provided.
-
公开(公告)号:US11895708B2
公开(公告)日:2024-02-06
申请号:US17414135
申请日:2018-12-18
Applicant: QUALCOMM Incorporated , Jing Lei , Seyong Park , Joseph Binamira Soriaga , Yi Huang , Yiqing Cao , Tingfang Ji , Juan Montojo , Peter Gaal , Wanshi Chen
Inventor: Jing Lei , Seyong Park , Joseph Binamira Soriaga , Yi Huang , Yiqing Cao , Tingfang Ji , Juan Montojo , Peter Gaal , Wanshi Chen
CPC classification number: H04W74/0833 , H04W74/006
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a resource configuration for a random access (RA) procedure. The resource configuration may identify multiple sets of transmission resources corresponding to multiple radio resource control (RRC) states. The UE may identify an RRC state and may determine a set of transmission resources and/or a transport format based on the indication of the resource configuration, the identified RRC state, and/or a UE identifier (UE ID). The UE may transmit a first RA procedure message (e.g., a msgA) using the determined transmission resources and/or transport format. The base station may receive the message and may identify the RRC state of the UE based on the first message and transmitted indication of the resource configuration. The base station may transmit a second RA procedure message (e.g., a msgB), which the UE may receive.
-
7.
公开(公告)号:US20230155872A1
公开(公告)日:2023-05-18
申请号:US18156199
申请日:2023-01-18
Applicant: QUALCOMM Incorporated
Inventor: Yiqing Cao , Wanshi Chen , Jing Lei , Renqiu Wang
IPC: H04L27/26 , H04L5/00 , H04L25/02 , H04W72/044
CPC classification number: H04L27/2602 , H04L5/0048 , H04L25/0202 , H04W72/0466 , H04L27/26025 , H04L27/261
Abstract: Methods, systems, and devices for wireless communications are described. In some systems (e.g., non-orthogonal multiple access (NOMA) systems), a base station may serve a large number of user equipments (UEs) on the uplink. To improve detectability for these uplink transmissions (e.g., if reference signals are not available for the transmissions), the UEs may implement parallel transmissions of preambles with uplink data. A UE may split the uplink data into one or more data layers, and may select one or more preamble layers to transmit superposed with the data layers. These preambles may be sequences known to both the UE and the base station to aid in detectability. The UE may assign different signature sequences to each of these layers based on cross-correlation values (e.g., assigning sequences with higher cross-correlation values to the data layers for improved detectability), and may scramble the layers into a single shared signal for transmission.
-
公开(公告)号:US11483775B2
公开(公告)日:2022-10-25
申请号:US17269337
申请日:2019-09-26
Applicant: Qualcomm Incorporated
Inventor: Huilin Xu , Seyedkianoush Hosseini , Yuwei Ren , Alexandros Manolakos , Yiqing Cao , Joseph Binamira Soriaga
Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for managing remote interference using a previously detected relationship between an aggressor base station and a victim base station. The described techniques provide for allocating reference signal sequences for various victim base stations to send to an aggressor base station. The victim base station may trigger the aggressor base station to perform reference signal monitoring based on the previously detected victim-aggressor relationship, and may transmit a reference signal carrying a unique identifier based on the triggering. The first base station may send a request that the second base station to transmit a reference signal for enabling the first base station to measure interference of a wireless channel, and performing interference mitigation techniques at the first base station, the second base station, or both, to mitigate the remote interference.
-
公开(公告)号:US20250106832A1
公开(公告)日:2025-03-27
申请号:US18729487
申请日:2022-03-25
Applicant: QUALCOMM INCORPORATED
Inventor: Yiqing Cao , Peter Gaal , Kazuki Takeda , Masato Kitazoe
IPC: H04W72/0453
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a message to a network entity, such as a base station, indicating a capability of the UE to support multiple supplemental uplink frequency bands bundled to a serving cell. The UE may transmit the capability in a capability report with other capability information, or independent of a capability report. The UE may receive an information element (IE) in control signaling. The IE may indicate a set of supplemental uplink frequency bands for the serving cell. Each supplemental uplink frequency band may span one or more supplemental uplink carriers. The UE may receive additional control signaling scheduling one or more uplink transmissions on at least one supplemental uplink frequency band for the serving cell.
-
公开(公告)号:US12193021B2
公开(公告)日:2025-01-07
申请号:US17641526
申请日:2020-09-10
Applicant: Qualcomm Incorporated
Inventor: Yiqing Cao , Wanshi Chen , Jing Lei
IPC: H04W72/23 , H04W72/1263
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive at least one control message from a base station, the at least one message jointly scheduling the UE for access network communications between the UE and the base station and for sidelink communications between the UE and another UE, such as another UE in a group of UEs. The UE may determine network control information based on the at least one control message. The UE may also determine sidelink control information based on the at least one control message. The UE may communicate with the base station and the other UE in accordance with the network control information and the sidelink control information, respectively.
-
-
-
-
-
-
-
-
-