Abstract: The method includes determining which of one or more physical resource elements are to include a reference signal. The method includes generating a signaling message including information indicating the determined physical resource elements that are to include a reference signal, and transmitting the signaling message to user equipment.

Abstract: Method and apparatus for supporting a partial sub-frame data transmission in LTE systems. The transmitting device performs a channel assessment in a previous sub-frame in an unlicensed carrier (S110). After a successful channel assessment, the transmitting device starts a data transmission (S120). The transmitting device transmits a control message for indicating the data transmission in (E)PDCCH (S140). The control message may include the starting time of the data transmission and/or at least one transmission characteristic in the previous sub-frame. The transmission device may transmit an initial control message for indicating a potential data transmission being started in the sub-frame in which the initial control message is transmitting.

Abstract: In a radio communication system using a channel divided into a plurality of timeslots, a data signal and a first control signal are transmitted during one or more first time slots of the plurality of time slots. The first control signal comprising pilot bits and power control commands. A second control signal is transmitted during one or more second time slots of the plurality of time slots. The second control signal comprises pilot bits and power control commands such that a ratio of pilot bits to power control commands in the second control signal is lower than that of the first control signal.

Abstract: A method for communicating between a primary station and at least one secondary station, comprising: configuring the secondary station to search at least one of a plurality of search spaces having a first structure, the first structure consisting of at least a first number of resource sets having a first size, where at least one resource set is for transmitting a message to the secondary station, and changing the search space structure to a second structure different from the first structure in response to a signalling message.

Abstract: At least one example embodiment discloses a method of scheduling communications in a network having a plurality of base stations covering cells, respectively. The method includes obtaining a first coordination matrix, by a first base station, based on channel state information from at least one user equipment (UE), the first coordination matrix indicating scheduling information and first weights associated with subband transmissions for the first base station, transmitting the first coordination matrix to at least another base station of the plurality of base stations, receiving, by the first base station, a second coordination matrix from the at least another base station, the second coordination matrix indicating second weights associated with subband transmissions for the second base station, and transmitting, by the first base station, in subbands where the associated first weights are greater than the associated second weights.

Abstract: An apparatus and method for feeding back channel state information are disclosed. The method of providing channel state information for a wireless communications channel provided between a first network node having at least one transmission antenna and a second network node having at least one reception antenna comprises the steps of: estimating a current value of at least a first type of channel state information for at least one sub-channel within the channel from signals received by the at least one reception antenna over the channel from the at least one transmission antenna; determining whether the current value of the first type of channel state information varies from previously-transmitted value for the first type of channel state information by at least a predetermined amount; and if so, transmitting an indicator indicative of the current value for the first type of channel state information to the first network node.

Abstract: A radio communication system comprises a communication channel for the transmission of data packets from a primary station having a plurality of antennas to a secondary station having at least one antenna. The channel comprises a plurality of paths, and the primary station transmits a plurality of packets substantially simultaneously. Each of the plurality of packets is transmitted via a different subset of the plurality of paths, for example by arranging for each packet to be transmitted via a different antenna or antenna beam. The secondary station receives the plurality of data packets, determines whether each packet is received correctly and signals this determination (typically as an acknowledgement or a negative acknowledgement to the primary station for each of the plurality of packets. The signalling may be by any convenient means, for example transmitting each acknowledgement or negative acknowledgement via a different subset of available uplink paths.

Abstract: The present invention relates to method for communicating between a primary station and a secondary station comprising (a) at the secondary station, upon arrival of a data packet to be transmitted to the primary station, buffering said data packet in a buffer, and transmitting to the primary station a request for an uplink transmission resource if a request condition is satisfied, said request condition being based on at least one previous grant of uplink transmission resource, (b) at the primary station, granting to the secondary station an uplink transmission resource to be used.

Abstract: In a method for receiving control information, a transceiver decodes at least one set of decoding candidates, and then detects whether control information is present on the control channel based on the decoded at least one set of decoding candidates. In a method for transmitting control information, a transceiver selects a decoding candidate from a set of decoding candidates for transmitting control information on a control channel; and transmits to another transceiver, control information using at least one time-frequency control channel resource element corresponding to the selected decoding candidate.

Abstract: One embodiment includes a method for selecting, by a mobile unit, one of a plurality of control information reporting modes based on at least one of a control information transmission type and a payload size. The method further includes transmitting, by the mobile unit, one or more UCI report(s) to the base station using the selected UCI reporting mode.

Abstract: Apparatus and method for encoding and transmitting feedback information from a first network node to a second network node in a multi-carrier wireless telecommunications network. The first network node is operable to receive signals from the second network node on two or more reception carriers and transmit data to the second network node on one or more transmission carriers. Each reception carrier being transmitted within an associated a radio band.

Abstract: In UMTS WCDMA a new RACH-based uplink is being discussed. The request for uplink transmission resource is made using a mechanism based on the conventional RACH. The main difference from the conventional RACH is that the data transmission uses a high-speed uplink packet data channel, known as Enhanced Dedicated Channel (E-DCH), instead of a single short message associated directly with the RACH preamble. One proposed scheme for indicating the E-DCH resources to be used creates a link between the values of each of a group of multiple signatures sent on the AICH (to acknowledge the E-RACH access) and a specific set of E-DCH parameters defined in a table. We propose to signal the set of resources to be used independently from acknowledging the E-RACH access. One possible method is to transmit information in the unused portion of the AICH (corresponding to 1024 chips every slot) indicating the resource set.

Abstract: The present invention relates to a method for communicating in a network, comprising a) a secondary station preparing the transmission to a primary station of a message comprising at least a data field for containing data in an allocated resource, said resource comprising a plurality of resource blocks, and b) if the size of the allocated resource is bigger than required for the size of the message, the secondary station dividing the allocated resource in a first portion and a second portion, each portion comprising at least one resource block, c) the secondary station transmitting the message to the primary station in the first portion of the resource, d) the secondary station preventing from transmitting in the second portion of the resource.

Abstract: A base station requires one or more channels in an unlicensed frequency band for a predetermined time interval and schedules one or more user equipment for uplink transmission on the one or more channels during the predetermined time interval. User equipment transmits, over a licensed frequency band, a request for resources for uplink transmission in an unlicensed frequency band. The user equipment receives scheduling information indicating a first portion of a predetermined time interval that is allocated to the first user equipment for uplink transmission on one or more channels in the unlicensed frequency band.

Abstract: A system and method of a primary station giving access to a resource to a secondary station. The secondary station transmitting to the primary station an access request to a resource including a preamble for requesting access to the resource. Each resource is associated in a predetermined way to each preamble. The primary station's response to the access request is modified depending on whether the resource associated with the preamble is available. The primary station transmitting an acknowledgement indication of the access request and signaling independently from the transmission of the acknowledgement indication a set of resources to be used by the secondary station. The primary station's response to the preamble comprises only an acknowledgement when an associated resource is available and comprises an indication of a different resource when the associated resource is not available.

Abstract: The present invention relates to a method for transmission of control information from a primary station to at least one secondary station, comprising the step of transmitting with a first set of control information parameters control information corresponding to data transmission with a first set of data parameters and transmitting with a second set of control information parameters control information corresponding to data transmission with a second set of data parameters, wherein at least one control information parameter has a difference in value between the two sets of control information parameters, said difference in value having a dependency on the difference between the value of a data parameter in the first set of data parameters and the value of the data parameter in the second set of data parameters, said data parameter being a different parameter from the at least one control information parameter.

Abstract: At least one example embodiment discloses a method of determining uplink resources. The method includes assigning index values for control channel elements. The control channel elements are allocated to at least one of first and second control channel transmission sets. The uplink resources being are based on the index values and an uplink resource for the first control channel transmission is different than an uplink resource for the second control channel transmission.

Abstract: In a mobile communication system comprising a base station (100) and a plurality of mobile stations (200) and operating closed loop transmitter power control, power control commands for transmission on an uplink are derived from measurements made on received downlink signals comprising non-predetermined data values. Optionally the non-predetermined data values may comprise power control commands for uplink transmit power control.

Abstract: The present invention provides a transmission method and apparatus for cancelling inter-carrier interference in wireless communication systems. Particular carriers are not used for data transmission but carry weighted data to cancel the ici interference of a first group of interfering sub-carriers onto a second group of victim sub-carriers. The weights are inversely proportional to the frequency offset between the interfering sub-carriers and the victim sub-carriers.

Abstract: A radio communication station in a radio communication system having a plurality of radio communication devices, derives a quantization parameter from control indications received from respective radio communication devices and transmits the quantization parameter to the radio communication devices on at least one downlink channel. The radio communication devices receive the quantization parameter, determine respective channel state metrics for the downlink channel, respectively quantize the determined respective channel state metrics by applying quantization ranges indicated by the quantization parameter, determine respective control indications indicative of the respective quantized channel state metrics, and transmit to the radio communication station respective signals indicating the determined respective control indications as respective random access transmissions on an uplink channel.