Alcatel Lucent

Nokia Technologies Oy

Nokia Solutions and Networks Oy

Pingping Wen

Tao Yang

Mingli You

Chandrika Kumudinie Worrall

Chunli Wu

Jin Liu

Karri Markus Ranta-Aho

Ping Yuan

Samuli Heikki Turtinen

Benoist Sebire

Sudeep K Palat

Lin Yang

Jeroen Wigard

Yi Zhang

Jialin Zou

Mads Lauridsen

Yun Deng

Wenjian Wang

Zhigang Luo

Rafhael Amorim

Zhilan Xiong

Xun Li

Fanglei Sun

Huan Sun

Ning Lu

Gerhard Schreiber

Chongxian Zhong

Hongbao Zhang

Shaoquan Wu

Jin c/o Alcatel-Lucent Shanghai Bell CoLtd Liu

Disclosed are devices, methods, apparatuses, and computer readable media for terahertz channel communication. An example communication apparatus for transmission property sensitive band group, characterized in employing aware information of a terminal device, which may comprise channel state information, information on available band and positioning information of the terminal device may include at least one processor and at least one memory. The at least one memory may include computer program code, and the at least one memory and the computer program code may be configured to, with the at least one processor, cause the communication apparatus as the terminal device to perform: determining the channel state information and the information on the available band and transmitting, to a network device, the channel state information and the information on the available band; and on request, determining the positioning information of the terminal device and transmitting, to the network device, the positioning information.

Apparatuses, methods, and computer readable media for terahertz channel communication

According to embodiments of the present disclosure, service-based retransmission scheme for uplink in NTN has been proposed, which can support multiple retransmission schemes based on service type for uplink. The network device determines different retransmission schemes based on the QoS requirements of the services. The terminal device selects the retransmission scheme for the service. In this way, the QoS of different service and reliability of MAC CE can be guaranteed.

Service based uplink retransmission

Embodiments of the present disclosure relate to dynamic active time trigger in CFRA. A first device receives a random access request from a second device in a discontinuous reception mode. The first device transmits a random access response to the second device. The random access response comprises at least one of: an indicator of an offset between a reception of the random access response and a start of monitoring scheduling information from the first device, or a flag indicating whether the indicator is present in the random access response. The first device transmits the scheduling information to the second device based on the offset.

Dynamic active time trigger in contention free random access

Example embodiments of the present disclosure relate to a solution for configuring a retransmission in communications. In an aspect, a first device transmits, to a second device, a first indication of a plurality of candidate retransmission configurations. Each of the plurality of candidate retransmission configurations includes a transmission feedback configuration and/or a data retransmission configuration. The first device selects a target retransmission configuration from the plurality of candidate retransmission configurations. The first device transmits, to the second device, a second indication of the target retransmission configuration. The first device communicates with the second device using the target retransmission configuration. The example embodiments of the present disclosure provide a dynamical multi-level indication for a retransmission scheme.

Dynamic retransmission configuration

Embodiments of the present disclosure relate to generation and detection of physical random access channel (PRACH) preamble. A first device determines a base sequence, a first scrambling sequence for the base sequence, and a second scrambling sequence for the base sequence. The first device generates a random access preamble by applying the first and second scrambling sequences to different portions of the base sequence, respectively. The first device transmits the random access preamble to a second device.

Generation and detection of physical random access channel (PRACH) preamble

Embodiments of the present disclosure provide a communication method and device for uplink power control. The method comprises receiving a plurality of sets of power control parameters from a network device, each of the plurality of sets being associated with a corresponding one of a plurality of sets of candidate beam patterns for the terminal device. The method further comprises selecting, based on a beam pattern for the terminal device, one of the plurality of sets of power control parameters for uplink transmit power control, the beam pattern for the terminal device being included in the set of candidate beam pattern that is associated with the selected set of power control parameters.

Communication methods and devices for uplink power control

Various communication systems may benefit from improved HARQ. For example, it may be helpful to improve HARQ in non-terrestrial networks. A method may include receiving at a user equipment a configuration from a network entity. The configuration may include a hybrid automatic repeat request virtual process number. The method may also include receiving at the user equipment a downlink control information from the network entity. The downlink control information may include a hybrid automatic repeat request virtual process identification. In addition, the method may include receiving at the user equipment another downlink control information. The another downlink control information may include the hybrid automatic repeat request virtual process identification. Further, the method may include determining at the user equipment a difference between a timing of a transmission indicated by the downlink control information and another timing of another transmission indicated by the another downlink control information.

Hybrid automatic repeat request in non-terrestrial networks

Embodiments of the present invention provide a method for reporting power headroom in support of multiple link connections. The method comprises: receiving, by a user equipment, one or more configured power headroom report parameters from at least one of multiple base stations to which the multiple link connections are connected; maintaining, at the user equipment, multiple groups of power headroom report timers respectively corresponding to the multiple link connections and maintaining multiple groups of triggering conditions for reporting power headroom respectively corresponding to the multiple link connections, wherein a number of groups of the multiple groups of the power headroom report timers and the number of groups of the multiple groups of triggering conditions for reporting the power headroom are identical to the number of connections of the multiple link connections respectively; if at least one triggering condition of one group of the triggering conditions for reporting the power headroom is met with respect to a corresponding base station of the multiple base stations, then calculating the power headroom for the corresponding base station and generating a power headroom report; and sending the power headroom report to the corresponding base station.

Method and apparatus for reporting power headroom in support of multiple link connections

The present invention relates to a method and an apparatus for uplink transmission power control (TPC) of multi-link connections. The method for uplink TPC of multi-link connections according to an embodiment of the present invention includes: a user equipment (UE) receiving a cell path loss compensating factor and a reference power level of each carrier of each connection in the multi-link connections, receiving an uplink transmission power adjustment amount of each carrier of each connection in the multi-link connections, and measuring a path loss of each carrier of each connection in the multi-link connections. According to the received cell path loss compensating factor, reference power level, and uplink transmission power adjustment amount, and the measured path loss, the UE calculates uplink transmission power of each carrier of each connection in the multi-link connections, and transmits data based on the uplink transmission power.

Method and apparatus for uplink transmission power control of multi-link connections

The invention provides a method and apparatus for configuring a plurality of scheduling request triggers for a user equipment in a communication system. First, the base station determines a plurality of scheduling request triggers and a transmission type of each of the plurality of scheduling request triggers for the user equipment, based on the service characteristics of services of the user equipment; and then the base station transmits configuration information of the plurality of scheduling request triggers to the user equipment, the configuration information of the plurality of scheduling request triggers including the allocation way of the plurality of scheduling request triggers with respect to the services of the user equipment and the transmission type of each of the plurality of scheduling request triggers. The user equipment first receives the configuration information from the base station. After that the user equipment selects a scheduling request trigger corresponding to the current service based on the service characteristics of current service to be transmitted and the allocation way, and transmits the triggered scheduling request via the transmission type corresponding to the scheduling request trigger. By applying the technical solution of the invention, the efficient radio resource utilization could be achieved.

Method and apparatus for configuring a plurality of scheduling request triggers

The invention proposes a method and an apparatus for transmitting a buffer status report in a wireless network, where a user equipment is configured with a plurality of component carriers, the user equipment obtains an amount of data to be transmitted after respective media access layer protocol data units corresponding to the respective component carriers are generated, generates the uplink buffer status report message according to the amount of data to be transmitted, and reports the uplink buffer status report message to a base station serving the user equipment. The invention address the problem of how to report buffer status information when there are a plurality of media access layer protocol data units in a transport time interval. With the solution of the invention, the base station can definitively know how many uplink resources can be allocated for the user equipment to guarantee more efficient scheduling.

Method and apparatus for transmitting buffer status report in wireless network

The present invention proposes a distributed probabilistic dynamic interference coordination scheme to decrease or eliminate inter-cell interference, wherein the mechanism of ALOHA is introduced into the dynamic interference coordination. According to the first aspect of the present invention, a resource scheduling method is proposed, comprising: selecting resource to be scheduled from a scheduling list; selecting a first user equipment to be scheduled from the scheduling list; allocating the selected resource to the first user equipment by probability of p, wherein 0&#x2266;p&#x2266;1, if the first user equipment is of edge user. The present invention further proposes a scheduler implementing the aforesaid resource scheduling method and a base station (BS) comprising the aforesaid scheduler.

Resource scheduling method, scheduler and base station

The present application discloses a method and device for transmitting and receiving a power headroom report, wherein the method for transmitting a power headroom report comprises: forming, at a user equipment, a power headroom report specific to each carrier component; and transmitting the power headroom report to a base station. By implementing the method and device disclosed by the present application, a complete power headroom reporting mechanism can be provided to a LTE-A system having multiple new features. In addition, by receiving the power headroom report specific to each carrier component, the base station can further derive how many resource units need to be allocated to the user equipment, and a corresponding modulation and coding scheme so as to perform an effective resource scheduling and guarantee transmission quality of wireless links.

Method and device for transmitting and receiving power headroom report

A method and an apparatus for optimizing a user plan operation in a wireless communication system based on carrier aggregation are provided in the present invention. Firstly, a user equipment receives a downlink carrier component removal signaling from a base station, the downlink carrier component removal signaling is used to indicate a removed downlink carrier component; then, the user equipment, according to the received downlink carrier component removal signaling, stops the pending HARQ procedures of the removed downlink carrier component and flushes the HARQ receiving buffer related to the removed downlink carrier component and/or stops a re-ordering procedure and/or generates a status report and sends the status report to the base station, wherein the status report is used to indicate the base station to perform retransmission and inform the base station of the data needed to be retransmitted. By applying the technology scheme of the present invention, the user plan operation at the user equipment side can be optimized, when a downlink carrier component is de-activated or de-configured.

Method and apparatus for optimizing a user plan operation in a communication system based on carrier aggregation

The present invention provides a method and corresponding device of processing and parsing a to-be-transmitted data packet in a communication network, such as a LTE system. A sub-header that is used for a header portion of a transmitted data packet is generated for each component data packet constituting the transmitted data packet, containing: original data packet ID for indicating an original data packet which the component data packet belongs to; segmentation processing ID for indicating times of segmentation happened to the original data packet in order to the component data packet, and a data segment which said component data packet belongs to after each segmentation; data amount IF for indicating a data amount of a data portion of the data packet. With the technical solution provided by the present invention, the header structure definition of a data packet is optimized, and the transmission resource utilization efficiency is improved.

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Shanghai, China

Pingping Wen