公开(公告)号：WO2020112840A1

公开(公告)日：2020-06-04

申请号：PCT/US2019/063350

申请日：2019-11-26

Applicant: XCOM LABS, INC.

Inventor： BLACK, Peter John ,  KADOUS, Tamer Adel ,  FAN, Michael Mingxi ,  MALLIK, Siddhartha

IPC: H04B7/024 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/06 ,  H04L25/03 ,  H04W72/04 ,  H04L5/00

Abstract: Aspects of this disclosure relate to an improved coordinated multipoint (CoMP) network operating in a millimeter wave frequency band in which user equipment (UEs) combine signals received across multiple spatial beams from multiple base stations. The improved CoMP network can achieve high throughput, low latency, and/or high reliability at millimeter wave frequencies while maintaining a reasonable network complexity (e.g., lower network overhead than CoMP networks implemented with coherent combining). For example, the improved CoMP network can include one or more base stations and one or more UEs. Multiple base stations can transmit the same data across multiple spatial beams to a UE at the same time. The base stations may use information provided by a UE to identify an active set of base stations and/or spatial beams to serve the UE.

公开(公告)号：WO2022087569A1

公开(公告)日：2022-04-28

申请号：PCT/US2021/071881

申请日：2021-10-14

Applicant: XCOM LABS, INC.

Inventor： JIANG, Jing ,  EKPENYONG, Anthony Edet ,  LANE, Mark Vernon ,  ROE, Michael J. ,  MEI, Liang ,  GHOZLAN, Hassan ,  KADOUS, Tamer Adel

IPC: H04L27/26

Abstract: Aspects of this disclosure relate transmitting and/or receiving reference symbols. A first reference symbol includes a symbol and a cyclically shifted portion of the symbol, where the cyclically shifted portion has cyclic shift length. A second reference symbol includes a cyclically shifted version of the first reference symbol that is cyclically shifted relative to the first reference symbol by the cyclic shift length. The first and second reference symbols are transmitted consecutively from at least one antenna.

公开(公告)号：WO2022241436A1

公开(公告)日：2022-11-17

申请号：PCT/US2022/072255

申请日：2022-05-11

Applicant: XCOM LABS, INC.

Inventor： SUN, Wanlu ,  JIANG, Jing ,  KADOUS, Tamer Adel ,  ROE, Michael J. ,  BLACK, Peter John

IPC: H04L5/00 ,  H04L25/03 ,  H04W72/12 ,  H04B7/0413 ,  H04J13/16 ,  H04L25/0204 ,  H04W12/76 ,  H04W4/08 ,  H04W72/042 ,  H04W8/26

Abstract: Aspects of this disclosure relate to assigning scrambling identifiers to user equipments. A first scrambling identifier can be assigned to each user equipment of a group, such that the first scrambling identifier is the same for each of the user equipments of the group. A second scrambling identifier can be assigned to each of the user equipments of the group, such that the second scrambling identifier is different for each of the user equipments of the group. A selected scrambling identifier can be used to generate a reference signal sequence.

公开(公告)号：WO2022133443A1

公开(公告)日：2022-06-23

申请号：PCT/US2021/072918

申请日：2021-12-14

Applicant: XCOM LABS, INC.

Inventor： KADOUS, Tamer Adel ,  MALLIK, Siddhartha

IPC: H04B7/06 ,  H04B7/08 ,  H04B1/401

Abstract: Aspects of this disclosure relate to wireless communications that involve a quasi-omni beam and a directional beam, where the wireless communications involve radio frequency signals having relatively high frequency (e.g., a frequency above 20 GHz). In embodiments, a quasi-omni beam is wirelessly transmitted, a directional beam is selected based on the quasi‑omni beam, and a data transmission is received over the selected directional beam.

公开(公告)号：WO2022093988A1

公开(公告)日：2022-05-05

申请号：PCT/US2021/056892

申请日：2021-10-27

Applicant: XCOM LABS, INC.

Inventor： SADEGHI, Masoumeh ,  SUN, Wanlu ,  MALLIK, Siddhartha ,  EKPENYONG, Anthony Edet ,  JIANG, Jing ,  KADOUS, Tamer Adel

IPC: H04W72/12 ,  H04W72/04 ,  H04B7/0413 ,  H04W88/08

Abstract: Aspects of this disclosure relate to forming clusters of user equipments and network nodes and/or user equipment rate selection. Clusters of user equipments and network nodes can be formed for a time slot in different sections such that user equipments in a higher priority section are protected from interference associated with the cluster for a lower priority section. In user equipment rate selection, sum rates can be compared including and excluding a candidate layer. Based on the comparison, the candidate layer can be included in a layer set for user equipment rate selection. In certain applications, user equipment rate selection can be performed for multiple clusters of user equipments and network nodes. In such applications, inter-cluster interference can be nulled.

公开(公告)号：WO2021242574A1

公开(公告)日：2021-12-02

申请号：PCT/US2021/032986

申请日：2021-05-18

Applicant: XCOM LABS, INC.

Inventor： MALLIK, Siddhartha ,  KADOUS, Tamer Adel ,  ELGHARIANI, Ali A.

IPC: H04B7/06 ,  H04B7/0408 ,  H04B7/0417 ,  H04B17/309

Abstract: Aspects of the disclosure relate to an interference-aware beamforming environment in which an AP controller can determine one or more beams of one or more APs to serve various STAs. For example, an AP can request that STA(s) provide one or more uplink pilot signals during different time slots. The AP can receive the uplink pilot signal(s) and determine, for each STA, the uplink beam quality of each transmit beam-receive beam pair over which an uplink pilot signal was received from the respective STA. The AP can use reciprocity to determine, for each STA, the downlink beam quality for various transmit beam-receive beam pairs. The AP can use the determined downlink beam quality to identify the best beam with which to serve various STAs. An AP controller can determine which downlink beam(s) an AP should use to serve a STA based on the downlink beams originally selected by the APs.

公开(公告)号：WO2021211702A1

公开(公告)日：2021-10-21

申请号：PCT/US2021/027268

申请日：2021-04-14

Applicant: XCOM LABS, INC.

Inventor： KADOUS, Tamer Adel ,  MALLIK, Siddhartha ,  ELGHARIANI, Ali A. ,  BLACK, Peter John ,  SINGH, Jaspreet

IPC: H04W28/02 ,  H04L12/801 ,  H04W72/12 ,  H04B7/0413 ,  H04W12/06 ,  H04W84/12

Abstract: Aspects of the disclosure relate to a multipoint environment that enables a station (STA) to communicate with multiple access points (APs) and an AP to communicate with multiple STAs in a single wireless protocol stack. For example, a STA can authenticate simultaneously with multiple APs and decode any data packet that includes in a header a destination address that matches an address of the STA, irrespective of the source address included in the header of the data packet. Similarly, an AP can decode any data packet that includes in a header a destination address that matches an address of the AP or that matches a wildcard address associated with the AP, irrespective of the source address included in the header of the data packet.

公开(公告)号：WO2021202159A1

公开(公告)日：2021-10-07

申请号：PCT/US2021/023598

申请日：2021-03-23

Applicant: XCOM LABS, INC.

Inventor： BLACK, Peter John ,  CHEN, Jinghu ,  JIANG, Jing ,  KADOUS, Tamer Adel ,  ZHAO, Wanlun

IPC: H04L25/02 ,  H04L25/03 ,  H04L25/06 ,  H04L27/26 ,  H04L5/00

Abstract: Aspects of this disclosure relate to reference signal channel estimation. A wireless communication channel between two nodes can be estimated based on a received reference signal, such as a Sounding Reference Signal. Techniques are disclosed to improve performance of reference signal channel estimation and make channel estimates more robust in the presence of one or more of a variety of impairments. Frequency domain processing and/or time domain processing can be performed to reduce distortion in channel estimates.

公开(公告)号：WO2020163133A1

公开(公告)日：2020-08-13

申请号：PCT/US2020/015594

申请日：2020-01-29

Applicant: XCOM LABS, INC.

Inventor： JACOBS, Paul Eric ,  BLACK, Peter John ,  GROB, Matthew Stuart ,  FAN, Michael Mingxi ,  KADOUS, Tamer Adel

IPC: H04B1/40 ,  H04B1/401 ,  H04B1/59 ,  H04W88/04

Abstract: Embodiments of this disclosure relate to a user equipment that includes a transceiver that can operate in at least a traffic mode and a virtual network element mode. In the traffic mode, the transceiver can process a received downlink radio frequency signal and transmit an uplink radio frequency signal. The transceiver can couple a receive path to a transmit path in an analog domain in the virtual network element mode. In the virtual network element mode, the transceiver can, for example, perform functions of a network repeater or a network transmit‑receive point. Other embodiments of user equipments, network systems, and methods are disclosed.