Nec Corporation

Nec C Orporation

Lenovo Innovations Limited (hong Kong)

Robert Arnott

Yassin Aden Awad

Diptendu Mitra

Jagdeep Singh Ahluwalia

Yuhua Chen

Caroline Liang

Chadi Khirallah

Vivek Jha

Suresh Ganapathy

Tao Guo

Vivek Sharma

Sampath Rangarajan

Narayan Prasad

Francesca Serravalle

Raymond Kwan

Patricia Wells

Hisashi Futaki

Sadafuku Hayashi

Yasushi Maruta

Motoki Morita

Takahiro Nobukiyo

Neeraj Gupta

Duong Pham

Alberto Suarez

Kay Seo

Ayesha Ijaz

Arun Gurung

Sherif Mekhail

A communication system is disclosed in which a user equipment (UE) receives downlink control information (DCI) in accordance with at least one of a first DCI format and a second DCI format, the DCI indicating at least one communication resource to be used for transmitting Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) feedback for downlink data at a symbol or sub-slot level, and the DCI format used indicating whether a timing window in which said downlink data is to be transmitted is shorter or longer than a slot length. The UE receives downlink data during said timing window and transmits corresponding HARQ-ACK using the indicated at least one communication resource.

User equipment for managing feedback and method thereof

A communication system is disclosed in which a base station serves a communication area, wherein the communication area is formed by a plurality of directional beams each covering a respective portion of the communication area and each having a different respective beam identifier. The base station communicates control information, for a communication device (UE), using at least one directional beam associated with that communication device (e.g., a UE-specific operational beam set).

Communication system

A communication system is described in which system information is transmitted to communication devices, by a communication apparatus of the system, in system information blocks, in accordance with a system information block transmission scheme. The communication apparatus configures at least one system information block to include control information indicating how the system information blocks will be transmitted.

Method and apparatus for machine type communication of system information

A mobile communications system is proposed in which mobile communications devices are arranged to transmit signals to and to receive signals from a base station using one or a subset of available sub-bands, with the base station being configured to move the mobile communications devices between the sub-bands. An anchor sub-band is also provided on which idle mobile communications devices camp until they are moved to one or more other sub-bands in addition to or instead of the anchor sub-band.

Communications system

A communications system is described that has a base station and a number of user devices, including legacy user devices and non-legacy user devices. The base station generates control data for transmission to the user devices, the control data including common control data for reception and decoding by a plurality of user devices and user specific control data for reception and decoding by a specific user device. The common control data is for reception and decoding by the non-legacy user devices and cannot be decoded by the legacy user devices. The common control data is repeated within multiple subframes for reception and decoding by non-legacy user devices. The non-legacy user devices are typically Machine Type Communications (MTC) user devices.

A method of signaling resource allocation data in a communication system which uses a plurality of sub-carriers arranged in a sequence of chunks. An allocation of the sub-carriers for each of a plurality of user devices is received. The received allocations are processed to determine, for each user device, data identifying a start chunk and an end chunk within the sequence of chunks, which depend upon the sub-carriers allocated to the user device. Different resource allocation data is generated for each of the user devices using a predetermined mapping which relates the data identifying the corresponding start chunk and end chunk determined by the processing step to resource allocation data comprising a unique value. The respective resource allocation data is signaled to each of the plurality of user devices.

Resource allocation

A communications node operable to communicate with another communications node over a communications channel having a plurality of frequency resources, the communications node includes data defining a division of the communications channel into a plurality of contiguous sub-bands each having N frequency resources, wherein each frequency resource in a sub-band has a corresponding frequency resource in each of the other sub-bands, data defining an initial allocation of the frequency resources, a resource determination module operable to apply a frequency shift to the initially allocated frequency resources in accordance with a frequency hopping sequence to determine frequency resources to use for communicating information with the other communications node, wherein the frequency shift applied moves the initially allocated frequency resources to corresponding frequency resources in another sub-band, a transceiver for communicating information with the other communications node using the determined frequency resource.

Frequency hopping

Scrambling code is initialized based on a parameter, n', that changes from a given block of sub-frames to a subsequent block of sub-frames wherein the parameter is derived using one of the following formulas:=(+SFN)mod 216=()mod 216

Scrambling initialisation in a communications system

A communication system is disclosed in which a base station serves a communication area, wherein the communication area is formed by a plurality of directional beams each covering a respective portion of the communication area and each having a different respective beam identifier. The base station communicates control information, for a communication device (UE), using at least one directional beam associated with that communication device (e.g. a UE-specific operational beam set).

A communication system is disclosed in which a base station manages the transmission of on-demand system information to optimise the trade-off between the additional signalling overhead associated with on-demand transmission and the resource usage inefficiencies associated with the sometimes unnecessary transmission of system information on a periodic basis. The base station manages switching from on-demand transmission to periodic transmission, and vice versa, based on one or more utilisation thresholds.

On-demand system information broadcasting system

A method of signalling resource allocation data in a communication system which uses a plurality of sub-carriers arranged in a sequence of chunks. An allocation of the sub-carriers for each of a plurality of user devices is received. The received allocations are processed to determine, for each user device, data identifying a start chunk and an end chunk within the sequence of chunks, which depend upon the sub-carriers allocated to the user device. Different resource allocation data is generated for each of the user devices using a predetermined mapping which relates the data identifying the corresponding start chunk and end chunk determined by the processing step to resource allocation data comprising a unique value. The respective resource allocation data is signaled to each of the plurality of user devices.

A communication system is disclosed in which a communication device and a base station initially communicate using a first bandwidth. The communication device monitors for control data transmitted, by the base station, using a first control resource set conveyed in the first bandwidth. The communication device and the base station switch to using a second bandwidth, wherein the second bandwidth is different to the first bandwidth, and the communication device monitors for control data transmitted, by the base station, using a second control resource set that is conveyed in the second bandwidth.

Growing community of inventors

London, United Kingdom

Robert Arnott