PILOT-DATA OVERLAP DESIGN FOR UPLINK TRANSMISSION

    公开(公告)号:US20180167182A1

    公开(公告)日:2018-06-14

    申请号:US15374065

    申请日:2016-12-09

    Abstract: Systems and methods are provided in which uplink transmission of pilot uses time-frequency resources that overlap with time-resources for the uplink transmission of data, by the same UE or different UEs. This can result in a decrease in pilot overhead, or if longer pilot sequences are used, can result in a decrease in collision probability. In a group-based approach, UEs are organized into groups, and each group is allocated the same resources for pilot and data.

    USER EQUIPMENT DETECTION FOR UPLINK RANDOM ACCESS IN DISPERSIVE FADING ENVIRONMENTS

    公开(公告)号:US20170272278A1

    公开(公告)日:2017-09-21

    申请号:US15076128

    申请日:2016-03-21

    Abstract: Systems and methods for detecting potentially active user equipment (UE) in a network are provided. A set of potentially active UEs is detected using an iterative method. In a first iteration UE detection is performed using compressed sensing (CS) based on first pilot sequences to detect a first set of potentially active UEs. Channel estimation is then performed for the first set of potentially active UEs. In subsequent iterations, UE detection is performed using CS to detect another set, typically reduced in size, of potentially active UEs using results of the channel estimation from the previous iteration. Channel estimation is then again performed for the new set of potentially active UEs. After the last iteration, the set of potentially active UEs detected in the last iteration is output as the determined set of potentially active UEs along with channel estimates for the set of potentially active UEs determined in last iteration.

    CONTROL SIGNALING IN MULTIPLE ACCESS COMMUNICATION SYSTEMS
    13.
    发明申请
    CONTROL SIGNALING IN MULTIPLE ACCESS COMMUNICATION SYSTEMS 审中-公开
    多通道通信系统中的控制信号

    公开(公告)号:US20160128088A1

    公开(公告)日:2016-05-05

    申请号:US14928750

    申请日:2015-10-30

    Abstract: Control signaling in multiple access communication systems, including apparatus and methods, is disclosed. Multiple access to a wireless communication link is based on power modulation division. Modulation information, capacity information, resource scheduling information, and resource assignment information is determined by a base station. Information is transmitted to user equipment devices in a common control channel in accordance with the determined modulation information, capacity information and resource scheduling information. Information is also transmitted to supporting user equipment, which supports the power modulation division multiple access, in a user equipment-specific control channel in accordance with the determined resource assignment information.

    Abstract translation: 公开了包括装置和方法在内的多址通信系统中的控制信令。 对无线通信链路的多路访问基于功率调制分区。 调制信息,容量信息,资源调度信息以及资源分配信息由基站决定。 根据确定的调制信息,容量信息和资源调度信息,将信息发送到公共控制信道中的用户设备设备。 信息还根据所确定的资源分配信息在用户设备专用控制信道中发送到支持用户设备,该用户设备支持功率调制分多址。

    METHODS AND APPARATUS FOR OVERLAID MODULATION

    公开(公告)号:US20220029734A1

    公开(公告)日:2022-01-27

    申请号:US16936478

    申请日:2020-07-23

    Abstract: In multi-domain modulation, also known as overlaid modulation, information is transmitted over more than one modulation domain. In such a transmission, different modulation domains are overlaid on top of each other. Signaling that is indicative of multiple modulation domains for overlaid modulation and is indicative of multiple modulation switching intervals is communicated in a wireless communication network, data modulated using the overlaid modulation is also communicated in the wireless communication network. The multiple modulation switching intervals include a respective modulation switching interval for each of the multiple modulation domains, and each respective modulation switching interval is different from other modulation switching intervals in the multiple modulation switching intervals.

    CONFIGURATION OF THE INITIAL ACTIVE BANDWIDTH PART FOR INITIAL NETWORK ACCESS

    公开(公告)号:US20190150121A1

    公开(公告)日:2019-05-16

    申请号:US16188779

    申请日:2018-11-13

    Abstract: Methods and devices for configuring an initial active downlink bandwidth part as part of an initial access procedure are provided. In one provided method, a base station broadcasts a synchronization signal block (SSB) that includes a control resource set (CORESET) configuration index. The CORESET configuration index is one of a plurality of CORESET configuration indexes, each CORESET configuration index being associated with a respective configuration of a CORESET. Each configuration includes a CORESET frequency size, a CORESET time duration, and a frequency offset of the CORESET with respect to the SSB selected from a set of predefined frequency offsets. The initial active downlink bandwidth part is defined as having the same frequency location and bandwidth as the CORESET. The base station transmits, as part of a physical downlink control channel (PDCCH) within the CORESET, information indicating scheduling of remaining minimum system information (RMSI) in a physical downlink shared channel (PDSCH).

    RESOURCE GRID OFFSET INDICATION IN MIXED NUMEROLOGIES

    公开(公告)号:US20190215216A1

    公开(公告)日:2019-07-11

    申请号:US16237997

    申请日:2019-01-02

    Abstract: Systems and methods are provided for configuring an alignment between various resource grids. A base station transmits alignment information between a first resource grid or a first transmission using the first resource grid, and a second resource grid and a third resource grid. The first resource grid uses a first sub-carrier spacing (SCS) from a first set of SCSs, the second resource grid uses a second SCS from a second set of SCSs, the third resource grid uses a third SCS from the second set of SCSs. The base station transmits a synchronization sequence block (SSB) using the first resource grid, and the base station transmits a first physical downlink shared channel (PDSCH) in assigned resource blocks using at least one of the second resource grid and the third resource grid. A user equipment receives the alignment information, and determines the resource grids based on the alignment information so as to be able to receive the transmitted resource blocks.

    METHODS AND SYSTEMS FOR CONTROL RESOURCE SET AND SEARCH SPACE SET MANAGEMENT

    公开(公告)号:US20210112529A1

    公开(公告)日:2021-04-15

    申请号:US16598216

    申请日:2019-10-10

    Abstract: Systems and methods are provided to improve UE power management and support multiple-PDCCH based multi-TRP or multi-antenna panel transmission with intra-cell (same cell ID) and inter-cell (different Cell IDs). The methods involve configuring CORESETs and associated search space sets. A configured search space set can then be activated implicitly activating the associated CORESET, or a configured CORESET can be activated implicitly activating the associated search space sets. Alternatively, CORESET-search space set links are configured, and then activated. Multiple different overall configurations, each having different CORESET, search space set configurations may be provided and selected between.

    TWO-PHASE TRANSMISSION FOR MACHINE-TYPE COMMUNICATION

    公开(公告)号:US20190052305A1

    公开(公告)日:2019-02-14

    申请号:US16162621

    申请日:2018-10-17

    Abstract: A two-phase approach to machine-type communications is provided. In a first phase, for activity detection, at least one symbol is transmitted using a long signature. During a second phase, for data transmission, information-carrying symbols are transmitted using a short spreading signature. Activity detection performance is enhanced through the use of a longer spreading signature.

Patent Agency Ranking