Telefonaktiebolaget Lm Ericsson (Publ)

David Better

Tomas Lagerqvist

Peter Nordlund

Anthony Paravati

Walter Müller

Ahmedul Quadir

Christian Skärby

Tobias Tynderfeldt

Gunnar Bergquist

Franz Heiser

Mats Johansson

Johnny Karlsen

Patrik Rask

Govardhan Madhugiri

Walter MÜLLER

A method is performed by a network node for handling link adaptation for a communication between the network node and a User Equipment, UE, in a wireless communications network. The method comprises: obtaining an initial Information Carrying Capacity, ICC, estimate; and establishing a measurement at each Hybrid Automatic Repeat Request, HARQ, feedback on an initial transmission in the communication. The measurement comprises a Block Error Rate, BLER, per: rank, Modulation and Coding Scheme, MCS, and slot. Based on the established measurement it is determining whether or not to adjust the initial ICC estimate, and whether or not to disable outer loop ICC adjustments. The determining is to be used as a basis for the link adaptation of said communication. A corresponding network node is also presented.

Network node and method for link adaption in a wireless communication network

A network node is configured with a common preamble format for a shared spectrum comprising a first Radio Access Technology (RAT) and a second RAT. The RACH procedure is common for the first and second RAT. The network node configures the network node with a common preamble location in time and frequency for the first and second RAT. The network node configures the UE with a preamble group comprising a number of preambles distributed between the first and second RAT for the common preamble format. When receiving from the UE, a first RACH message comprising a first preamble at the common preamble location according to the UE configuring, the network node decides whether the first RAT, the second RAT, or both the first and second RAT, shall be used for a second RACH message to be sent to the UE.

Network node and method for processing preambles in a random access channel

The embodiments herein relate to a method performed by a network node, for scheduling of a UE in UL. The network node is configured to schedule the UE using Frequency Selective Scheduling or resource fair scheduling. The network node estimates a PRBs for individual UEs, which are scheduled in the same cell and TTI. The network node determines whether the estimated number of PRBs fulfil one or more predetermined conditions. The network node determines to schedule the UEs using FSS when at least one of the one or more conditions are fulfilled, and determining to schedule the UEs using resource fair scheduling when none of the one or more predetermined conditions are fulfilled.

Network node and method performed therein for scheduling user equipment in uplink

A method and a status manager for controlling status reporting from a data receiving node in a wireless communication of data with a data sending node. When detecting that the data receiving node should transmit a status report to the data sending node before a prescribed time limit expires, the data receiving node is triggered to transmit the status report either together with data if the data is pending for transmission from the data receiving node when the time left before the prescribed time limit is greater than a minimum duration, or alone if no data is pending when the time left before the time limit becomes shorter than the minimum duration.

Method and status manager for controlling status reporting in wireless communication data

A method performed by a network node for managing transmission of one or more CRS subframes. The network node identifies if a cell is actively serving a set of UEs. When the cell is actively serving a set of UEs, which set of UEs is configured for DRX the network node sends CRS over the first bandwidth in one or more CRS subframes which are transmitted in the cell during an onDuration interval of the DRX pattern and/or in one or more CRS subframes where system information is sent and/or in one or more CRS subframes where downlink, DL, data is sent. The network node sends CRS over a second bandwidth, in CRS subframes which are not transmitted in the cell during the onDuration interval of the DRX and/or in the one or more CRS subframes except CRS subframes where system information is sent and/or in the one or more CRS subframes except CRS subframes where DL data is sent, which second bandwidth is reduced in relation to the first bandwidth.

Network node and method in a wireless telecommunications network

Systems and methods of discontinuous operation for wireless devices are provided. In one exemplary embodiment, a method may include preconfiguring (), by a user equipment (UE) (), the UE for discontinuous receive (DRX) operation in a connected state. The DRX operation may include modes of DRX operation of the UE with each mode corresponding to a level of connectivity of the UE. Further, while () the UE is in the connected state, the method may include determining (), by the UE, the level of connectivity of the UE and sending (), by the UE, to a network node, a request for the DRX operation. Also, the request may include an indication of the level of connectivity of the UE.

Systems and methods of discontinuous operation for wireless devices

Method performed by a network node for reducing interference in neighboring cells. The network node operates in a communication network, which is adapted to wirelessly serve a UE via a serving Radio Access, RA, node. The network node obtains a determination of at least one of Reference Signal Received Power, RSRP, and Reference Signal Received Quality, RSRQ, from the serving RA node as received by the UE and a determination of at least one of RSRP and RSRQ from a neighboring RA node as received by the UE, when the UE is connected to the serving RA node. The network node further decides to reduce a transmit power of the serving RA node serving the connected UE, when the determined RSRP and/or RSRQ of the serving RA node is higher than the RSRP and/or RSRQ of the neighboring RA node, in order to reduce the interference in neighboring cells caused by the serving RA node.

Network node and method for managing transmit power

Network node and method for transmitting one or more cell-specific reference signal subframes in a wireless telecommunications network

Managing of paging of a wireless device (). A first network node of a wireless communication network () determines () a code rate and/or transmit power for a present paging message based on a location in a sequence of paging messages. The location is associated with the present paging message. The first network node transmits () the present paging message targeted for receipt by the wireless device (). The present paging message commands the wireless device () to connect, or at least initiate connection, to the wireless communication network (). The present paging message is being coded based on the determined code rate and/or being transmitted based on the determined transmit power.

Managing of paging of a wireless device in a wireless communication network

According to a first aspect, it is presented a method for paging a particular wireless device. The method is performed in a radio base station and comprises the operations of: receiving a paging request from a core network node to page the particular wireless device, the paging request comprising a temporary identifier of the particular wireless device; obtaining at least one radio cell identifier for the particular wireless device from a database mapping temporary identifiers of the wireless device with radio cell identifiers; paging the particular wireless device using the at least one radio cell identifier for the particular wireless device; and determining the paging to be successful when a connection request comprising the temporary identifier is received from the particular wireless device.

Paging a wireless device using a radio cell identifier

Embodiments herein relates to a method in a radio base station () for handling a timing of uplink transmission from a user equipment () to the radio base station () in a radio communications network. The user equipment () is served in a cell () controlled by the radio base station (), and which radio base station () and user equipment () are comprised in the radio communications network. The communications in the cell () are organized in radio frames comprising subframes. The radio base station () receives a first uplink transmission from the user equipment () in a subframe related to the radio base station (). The radio base station then estimates a time parameter value based on a distance between the user equipment () and the radio base station () when the first uplink transmission is transmitted from the user equipment (). The radio base station () then sets a time value (N) in a message, which time value (N) is to be used to set a timing of a second uplink transmission at the user equipment (). The time value (N) is based on the estimated time parameter value and a time offset value (&#x394;T). The radio base station () then transmits the message comprising the time value (N) to the user equipment.

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Täby, Sweden

David Better