Patent application number | Description | Published |
20120307751 | Dynamic Multicarrier OFDM Transmission - A wireless device transmits a message to a server via a base station over a first plurality of subcarriers of a first uplink carrier. There is no guard band between any two subcarriers in the first plurality of subcarriers. The wireless device receives an activation command from a base station. The wireless device transmits data packets to the server via the base station over the first uplink carrier and at least one additional uplink carrier over a third plurality of subcarriers. There is at least one guard band between at least two subcarriers in the third plurality of subcarriers. | 12-06-2012 |
20130077514 | Channel State Information Transmission - A wireless device receives control messages from a first base station. The control messages configure measurement parameters and triggers measurements of channel state information for a subset of carriers. The control messages configure an uplink transmission resource, physical uplink channel format, and a list of carriers. The wireless device measures and transmits the channel state information for each active carrier in the list of carriers. The wireless device simultaneously receives signals from a subset of carriers belonging to at least two base stations or belonging to at least two sectors of the first base station. | 03-28-2013 |
20130107704 | Dynamic Special Subframe Allocation | 05-02-2013 |
20130107705 | Special Subframe Allocation in Heterogeneous Network | 05-02-2013 |
20130107826 | Special Subframe Allocation | 05-02-2013 |
20130107827 | Synchronized Network Transmission | 05-02-2013 |
20130107828 | Efficient Special Subframe Allocation | 05-02-2013 |
20130142062 | Channel State Information Feedback - A wireless device receives a first reference signal from a first base station and estimates a first signal strength based on the received first reference signal. The wireless device receives a second reference signal from a second base station and estimates a second signal strength based on the received second reference signal. The wireless device estimates an interference value based, at least in part, on the second reference signal. The wireless device estimates a signal to interference ratio value based on the second signal strength and a total interference value. The total interference value is computed based upon the interference value or the interference value plus the first signal strength. | 06-06-2013 |
20130142064 | HANDOVER IN MULTICARRIER WIRELESS NETWORKS - A serving base station transmits at least one message to configure at least one backward compatible carrier and at least one non-backward compatible carrier in a wireless device. The serving base station transmits, in response to the serving base station making a handover decision, a second message to a target base station. The second message comprises parameters indicating whether the wireless device supports configuration of non-backward compatible carriers, configuration information of at least one backward compatible carrier and/or configuration information of at least one non-backward compatible carrier. | 06-06-2013 |
20130142138 | Coordination of Control Channel Transmissions - A first base station transmits control messages to first wireless devices employing first OFDM resources. The first OFDM resources depend, at least in part, on wireless device identifiers of the first wireless devices. A second base station transmits control messages to second wireless devices employing second OFDM resources. The second OFDM resources depend, at least in part, on wireless device identifiers of the second wireless devices. The wireless device identifiers are configured such that the overlap between the first and second OFDM resources is at or below a threshold. | 06-06-2013 |
20130142141 | Carrier Information Transmission to Wireless Devices - A base station configured to communicate over a plurality of carriers. The plurality of carriers comprise at least one backward compatible carrier and at least one non-backward compatible carrier. The base station transmits a control message to a wireless device. The control message comprises an identifier for a carrier and information identifying a carrier type. The carrier type is either a backward compatible type or a non-backward compatible type. The base station configured to transmit a plurality of packets to a wireless device on non-backward compatible carrier(s) and backward compatible carrier(s). | 06-06-2013 |
20130142288 | Control Channel Detection - A wireless device at least demodulates, descrambles and decodes a first control signal to generate a first signal. The wireless device processes the first signal by at least encoding, scrambling, modulating and scaling the first signal. The wireless device subtracts the processed first signal from received signals to generate a second signal. The wireless device at least demodulates, descrambles and decodes the second signal to generate a second control message. | 06-06-2013 |
20130142291 | Synchronization Signals Detection - A wireless device correlates received signals with predetermined synchronization signals to produce correlation values. The wireless device identifies a first synchronization signal as a synchronization signal transmitted by a first base station. The wireless device subtracts a processed first synchronization signal from received signals to generate an updated received signal and correlates the updated received signal with a second plurality of predetermined synchronization signals to produce correlation values. The wireless device identifies a second synchronization signal as a synchronization signal transmitted by a second base station based on correlation values. | 06-06-2013 |
20130155891 | Beamforming Signaling in a Wireless Network - A first base station receives a message from a second base station. The second base station comprises a downlink carrier comprising downlink resource blocks. The message comprises downlink beamforming information element indicating a beamforming codeword employed for a downlink resource block. The first base station obtains channel state input information for a wireless device based on, at least in part, processing the downlink beamforming information. The first base station transmits the channel state input information to the wireless device. | 06-20-2013 |
20130155975 | Beamforming Codeword Exchange between Base Stations - A first base station receives a message from a second base station. The first base station and the second base station communicate to wireless devices employing a downlink carrier comprising downlink resource blocks. The message comprises downlink beamforming information indicating a beamforming codeword of a codebook employed for downlink resource block(s). The first base station selects, for a subset of the downlink resource blocks, beamforming codewords from a codebook based, at least in part, on the downlink beamforming information. The first base station transmits signals on a subset of the downlink resource blocks employing beamforming codewords. | 06-20-2013 |
20130156008 | Handover Signaling for Beamforming Communications - A serving base station transmits a message to one or more target base station in response to a handover decision for a wireless device supporting beamforming and multiple carrier configurations. The message includes a plurality of measurement configuration parameters for the wireless device. The serving base station receives a response from at least one of the target base stations. The serving base station transmits a handover command to the wireless device subsequent to receiving the response message. | 06-20-2013 |
20130156009 | Beamforming Handover Messaging in a Wireless Network - A serving base station transmits a message to one or more target base station in response to a handover decision for a wireless device supporting beamforming and multiple carrier configurations. The message includes a plurality of measurement configuration parameters for the wireless device. The serving base station receives a response from at least one of the target base stations. The serving base station transmits a handover command to the wireless device subsequent to receiving the response message. | 06-20-2013 |
20130156010 | Beam Information Exchange between Base Stations - A first base station receives an application protocol message from a second base station. The application protocol message comprises an identifier of the second base station and a beamforming codebook. The beamforming codebook comprises a plurality of beamforming codewords. Each of the plurality of beamforming codewords is identifiable by an index. The first base station transmits signals to wireless devices using a subset of the plurality of beamforming codewords. | 06-20-2013 |
20130170376 | Special Subframe Configuration in Wireless Networks - A base station configures a first set of subframes on a first carrier as special subframes. The base station transmits at least one unicast control message to a wireless device. The at least one unicast control message configures a second carrier. The base station configures the second carrier to enter a special subframe for every subframe in which the first carrier enters a special subframe, and the second carrier is activated. | 07-04-2013 |
20130170396 | Almost Blank Subframe Indication in Wireless Networks - A base station transmits a first unicast control message configuring transmission parameters of a first carrier for a wireless device. The base station transmits at least one second unicast message configuring measurement parameters of a second carrier. The measurement configuration comprises a first and a second measurement subframe allocation bitmap for the second carrier. The base station receives first and second channel state information from the wireless device. The base station transmits data packets to the wireless device. The data packets are encoded and modulated based on the first and second channel state information. | 07-04-2013 |
20130170435 | Network Site for Wireless Communications - A wireless network site comprises a base station and a cell site gateway. The cell site gateway comprises a first interface connected to the base station, a second interface connected to a packet network gateway, a label forwarding layer, and a third interface connected to a signaling peer to exchange control plane information to program the forwarding layer. The label forwarding layer transmits and receive packets. The control plane information comprises at least one first label value for transmitting a first plurality of packets to the base station and at least one second label value for transmitting a second plurality of packets to the packet network gateway. | 07-04-2013 |
20130176974 | Enhanced Signaling in a Wireless Device and Base Station - A base station transmits a control message to a wireless device to configure first radio resources of a control channel and second radio resources of a data channel. The control message indicates a starting OFDM symbol of the control channel in a subset of subframes, a frequency allocation in terms of resource blocks for the control channel, and a configuration of the subset of subframes in which the first radio resources of the control channel are configured. The second radio resources of a first data channel starts from the starting OFDM symbol in the subset of subframes. | 07-11-2013 |
20130188473 | Random Access Failure in Wireless Device Multiple Timing Advance Groups - A wireless device receives a control command to transmit a random access preamble on a first secondary cell. The wireless device repeatedly transmits the random access preamble until a random access response corresponding to the random access preamble is received or a predetermined number of transmissions is reached. If the predetermined number of transmissions is reached without receiving the random access response, the wireless device stops transmission of the random access preamble and keeps a connection with the base station active. | 07-25-2013 |
20130188580 | Power Scaling in Multicarrier Wireless Device - A wireless device receives a control command for transmission of a random access preamble on a first cell. The wireless device transmits the random access preamble in parallel with a first control packet, a second packet and/or a third packet. The wireless device determines a transmission power for the random access preamble. If a total calculated transmission power exceeds a predefined value, the wireless device reducing or scaling linear transmission power of one or more of the at least one parallel uplink transmission considering a higher priority for the transmission power of the random access preamble. | 07-25-2013 |
20130188581 | Sounding in Multicarrier Wireless Communications - A wireless device transmits one or more sounding reference signals in parallel with transmission of at least one of a first preamble and a first packet. The wireless device is configured to not transmit a first sounding reference signal if at least one of the following conditions is satisfied: a) the first sounding reference signal transmission and a second preamble transmission coincide in the same subframe of the same cell group, b) the wireless device has insufficient power to transmit the first sounding reference signal in parallel with at least one of a third preamble and a second packet. | 07-25-2013 |
20130188582 | Multicarrier Signal Transmission in Wireless Communications - A wireless device receives a control command for transmission of a random access preamble on a first cell in the plurality of cells. A fourth packet is scheduled for parallel uplink transmission with the random access preamble transmission. The fourth packet is one of a first control packet, a second packet and a third packet. The wireless device transmits the random access preamble. The wireless device transmits the fourth packet in parallel with the random access preamble, unless the random access preamble and the fourth packet are scheduled for transmission in the same cell group. | 07-25-2013 |
20130188612 | Random Access Process in a Multicarrier Base Station and Wireless Device - A Base station transmits a control command for transmission of a random access preamble on a first cell if the base station determines radio resources of the first cell are required for transmission of a portion of data and that the first cell requires a different uplink timing from all currently activated cells of the wireless device. The base station transmits at least one control packet for providing transport format information and resource allocation information for transmission of a plurality of packets of the data to be transmitted on a first data channel of the first cell. | 07-25-2013 |
20130188613 | Configuring Base Station and Wireless Device Carrier Groups - A base station transmits control message(s) to a wireless device configuring secondary cell(s). Each of the secondary cells is assigned to a cell group in a plurality of cell groups comprising a primary cell group and at least one secondary cell group. The control message(s) comprise dedicated parameters. If dedicated parameters comprise a cell group index for the secondary cell, the wireless device assigns the secondary cell to one of the at least one secondary cell group identified by the cell group index. Otherwise, the wireless device assigns the secondary cell to the primary cell group. | 07-25-2013 |
20130188614 | Pathloss Reference Configuration in a Wireless Device and Base Station - A base station transmits message(s) assigning each of at least one secondary cell to a cell group in cell groups comprising a primary cell group and a secondary cell group. The at least one message comprises a pathloss reference for a secondary cell. The pathloss reference is a configurable parameter if the secondary cell is in the primary cell group. The configurable parameter is configurable to a downlink of the secondary cell or the primary cell. The pathloss reference is only configurable as a downlink of the secondary cell if the secondary cell is in the secondary cell group. | 07-25-2013 |
20130188615 | Multicarrier Wireless Communications Reference Cell - A base station configures a primary cell group and at least one secondary cell group in a wireless device. The wireless device transmits first uplink signals in the secondary cell group employing a reference secondary cell in the secondary cell group as a timing reference. The wireless device autonomously selects a new activated secondary cell in the secondary cell group as the timing reference. The new activated secondary cell is different from the reference secondary cell. The wireless device transmits second uplink signals in the secondary cell group employing the new activated secondary cell as the timing reference. | 07-25-2013 |
20130188616 | Random Access in Networks with Carrier Aggregation - A wireless device configures a deactivation timer for a secondary cell in a secondary cell group. The wireless device may receive a control command initiating a random access process for the secondary cell. The wireless device may transmit a random access preamble on random access resources of the secondary cell in response to receiving the control command. The wireless device may abort the random access process on the secondary cell if the secondary cell is deactivated before the wireless device receives, on the primary cell, a random access response for the random access preamble transmission. | 07-25-2013 |
20130188617 | Time Alignment Timer in Multicarrier Communications - A wireless device is configured with a primary cell group and a secondary cell group. When a first time alignment timer of the primary cell group expires, for each cell in the wireless device, the wireless device stops uplink transmission of HARQ feedback, uplink transport blocks, and channel state information. When a second time alignment timer of the secondary cell group expires and the first time alignment timer is running, for each activated cell in the secondary cell group, the wireless device stops transmission of uplink transport blocks, and continues transmission of HARQ feedback and channel state information. | 07-25-2013 |
20130188618 | Synchronization in Base Stations and Wireless Networks - A base station transmits subframes of downlink carriers in a primary cell group and downlink carriers in a secondary cell group in substantial time alignment with each other. A wireless device transmits subframes of uplink carriers in the primary cell group in substantially time alignment with each other. The wireless device transmits subframes of uplink carriers in the secondary cell group in substantially time alignment with each other. The subframes transmission timing for uplink carriers in the primary cell group and in the secondary cell group employ different synchronization signals as a timing reference and different timing advance commands. | 07-25-2013 |
20130188619 | Secondary Cell Sounding Transmission - A wireless device receives message(s) configuring transmissions of sounding reference signals on a secondary cell in a secondary cell group. The wireless device receives an activation command to activate the secondary cell. The wireless device transmits the sounding reference signals if the secondary cell is activated, a timing advance command is applied to the secondary cell group, and a time alignment timer for the secondary cell group is running. The wireless device is configured to not transmit the sounding reference signals on the secondary cell during the period between receiving the activation command and applying the timing advance command. | 07-25-2013 |
20130188620 | Wireless Device for Multicarrier Communications - A wireless device establishes a first signaling bearer with a base station on a primary cell. The establishment of the signaling bearer comprises the wireless device receiving a control message from the base station on the primary cell in a plurality of cells comprising the primary cell and at least one secondary cell. The wireless device transmits radio capability parameters to the base station on the first signaling bearer on the primary cell. The radio capability parameters comprise at least one parameter indicating whether the wireless device supports a timing advance groups. | 07-25-2013 |
20130195057 | Wireless Device Capability and Enhanced Control Channel - A base station receives a first radio resource control (RRC) message comprising parameter(s) indicating whether a wireless device supports an enhanced physical downlink control channel (ePDCCH). The base station transmits a second RRC message causing configuration of first radio resources of a first ePDCCH and second radio resources of a first data channel. The second RRC message indicates a frequency allocation for the first ePDCCH in terms of resource blocks in a subset of subframes. The base station transmits scheduling information on the first ePDCCH in a first subframe. | 08-01-2013 |
20130204795 | Wireless Payment with a Portable Device - A portable device transmits a payment card number to a merchant machine. The portable device generates an encrypted first message comprising a request to get information about a financial transaction. A packet filter maps the encrypted first message to a pre-established non-GBR bearer. The portable device generates a fourth message by encrypting the encrypted first message and transmits the fourth message. The portable device receives and decrypts a second encrypted message. The portable device decrypts the decrypted second message and sends financial transaction information to a display. | 08-08-2013 |
20130215871 | Handover Signaling in Wireless Networks - A base station receives a first radio resource control (RRC) message comprising parameter(s) indicating whether a wireless device supports an enhanced physical downlink control channel (ePDCCH). The base station selectively transmits second RRC message(s) configuring first radio resources of a first ePDCCH. The base station makes a handover decision for the wireless device. The base station transmits a third message to a target base station. The third message comprises at least one of: parameter(s) indicating whether the wireless device supports an ePDCCH, and configuration information of the first ePDCCH. | 08-22-2013 |
20130223381 | Frame Number in Multicarrier Wireless Networks - A base station is configured to communicate employing a plurality of carriers comprising at least one prime carrier and at least one non-prime carrier. The base station may transmit a system frame number in a physical broadcast channel in a frame on a prime carrier. The base station may transmit and receive, employing a communication interface, packets in the frames on a non-prime carrier. The communication interface employs the system frame number transmitted in the frame of the prime carrier. The non-prime carrier is configured to operate without broadcasting the system frame number on the non-prime carrier. | 08-29-2013 |
20130242851 | RANDOM ACCESS PREAMBLE TRANSMISSION - A base station transmits control message(s) to assign each of secondary cells to a cell group in a plurality of cell groups comprising a primary cell group and a secondary cell group. The base the base station transmits a control command to the wireless device. The control command is configurable to cause transmission of a first random access preamble on a secondary cell in the secondary cell group. The control command is unconfigurable to cause transmission of a second random access preamble on any secondary cell in the primary cell group. | 09-19-2013 |
20130242938 | Random Access Preamble Transmission - A wireless device receives a control command to transmit a random access preamble on a second carrier. The wireless device repeatedly transmits the random access preamble until a random access response corresponding to the random access preamble is received or a predefined number of transmissions is reached. If the predefined number of transmissions is reached without receiving the random access response, the wireless device keeps an RRC connection with the base station active. | 09-19-2013 |
20130242958 | Sounding Reference Signal - A wireless device receives RRC message(s) configuring transmissions of sounding reference signals on a second carrier in a second carrier group. The wireless device receives a random access response comprising a timing advance command. The wireless device transmits the sounding reference signals on the second carrier after applying the timing advance command to the second carrier group. The wireless device is configured to not transmit any of the sounding reference signals on the second carrier during a period between receiving the RRC message and applying the timing advance command to the second carrier group. | 09-19-2013 |
20130250882 | Information Exchange between Base Stations - A first base station receives at least one application protocol message from a second base station. The second base station comprises a downlink carrier comprising a plurality of downlink resource blocks. The at least one application protocol message may comprise a second physical downlink control channel configuration. The first base station may transmit a packet comprising acknowledgement for the receipt of the at least one application protocol. | 09-26-2013 |
20130250897 | Sounding Reference Signal Transmission - A wireless device transmits a first sounding reference signal on a first cell of a first cell group in parallel with transmission of at least one of a first random access preamble in a second cell group, and a first uplink data packet on a second cell. The wireless device drops a second sounding reference signal in a symbol of the first cell if at least one of the following conditions is satisfied: a second random access preamble is transmitted overlapping the symbol in the first cell group, and a second uplink packet is transmitted overlapping the symbol in the first cell. | 09-26-2013 |
20130250929 | Uplink Sounding Transmission with Carrier Aggregation - A wireless device receives message(s) configuring transmissions of sounding reference signals on a secondary cell in a secondary cell group. The wireless device receives an activation command to activate the secondary cell. The wireless device transmits one or more of the sounding reference signals on the secondary cell after applying a timing advance command to the secondary cell group. The wireless device is configured to not transmit any of the sounding reference signals on the secondary cell during a period between receiving the message(s) and applying the timing advance command to the secondary cell group. | 09-26-2013 |
20130258862 | Radio Access for a Wireless Device and Base Station - A wireless device configures cell groups comprising a primary cell group and secondary cell group(s). The wireless device receives a control command for transmission of a random access preamble on a first secondary cell. The wireless device receives a random access response on the primary cell. The random access response comprises a timing advance command and an uplink grant. The wireless device applies the timing advance command to uplink transmission timing of a first secondary cell group comprising the first secondary cell. The wireless device transmits uplink data on the first secondary cell in radio resources identified in the uplink grant. | 10-03-2013 |
20130258882 | Random Access Mechanism for a Wireless Device and Base Station - A wireless device receives at least one control message configuring a plurality of cell groups and a pathloss reference for each secondary cell in at least one secondary cell. The wireless device transmits uplink signals to a base station in a first secondary cell in a secondary cell group. Transmission power of the uplink signals is determined employing a received power of the pathloss reference assigned to the first secondary cell. Timing of the uplink signals in the secondary cell group employs a second synchronization signal on an active secondary cell in the secondary cell group as a secondary timing reference. | 10-03-2013 |
20130258956 | Random Access Process in a Wireless Device - A wireless device initiates a first random access process on a first uplink carrier of a first cell in in response to receiving a first control command. The wireless device receives a second control command for transmission of a second random access preamble on a second uplink carrier of a second cell in the plurality of cells while the first random access process is on-going. The wireless device determines, employing a pre-defined rule, whether to continue with the first random access process and ignore the second control command; or to abort the first random access process and to transmit the second random access preamble. | 10-03-2013 |
20130258957 | Radio Access for a Wireless Device and Base Station - A wireless device receives control message(s) configuring a plurality of cell groups and a time alignment timer for each of the plurality of cell groups. The time alignment timer starts or restarts in response to the wireless device receiving a timing advance command to adjust uplink transmission timing of a commanded cell group. The wireless device receives a control command initiating a random access process for a secondary cell in the secondary cell group. The wireless device aborts the random access process on the secondary cell if a first time alignment timer of the primary cell group expires. | 10-03-2013 |
20130258958 | Timing Advance Timer Configuration in a Wireless Device and a Base Station - A base station transmits control message(s) comprising media access control dedicated parameters. The media access control dedicated parameters comprise a time alignment timer value for a primary cell group and a sequence of at least one element. Each element comprises a time alignment timer value and a cell group index. The time alignment timer value is associated with the cell group identified by the one cell group index. Each time alignment timer value is selected from a finite set of predetermined values. | 10-03-2013 |
20130258959 | Uplink Transmission Timing Advance in a Wireless Device and Base Station - A wireless device updates a first timing advance of a secondary cell group employing first timing advance command(s) for the secondary cell group. The wireless device stores the first timing advance upon expiry of an associated time alignment timer. The wireless device receives a second timing advance command for the secondary cell group with a timing advance value of zero. The second timing advance command starts the associated time alignment timer. The wireless device transmits uplink signals in radio resources identified in a received uplink grant employing the stored first timing advance. | 10-03-2013 |
20130259008 | Random Access Response Process in a Wireless Communications - A wireless device transmits a random access preamble with an initial transmission power. The wireless device monitors a control channel on a primary cell for a corresponding random access response. The monitoring is performed within a time frame which starts at a first subframe having a duration less than or equal to a primary random access response window regardless of which cell is employed for transmission of the random access preamble. The wireless device retransmits, with an increased transmission power, the random access preamble if no corresponding random access response is received. The increased transmission power depends on a cell specific power ramping step value. | 10-03-2013 |
20130260735 | Radio Configuration for a Wireless Device and Base Station - A base station detects a change in timing of signals received from a wireless device in a first secondary cell in a first cell group. If the base station determines that the first secondary cell needs to be assigned to a different cell group than the first cell group, the base station transmits at least one second radio resource control message configured to cause in the wireless device release of the first secondary cell. The base station assigns the first secondary cell to a second cell group different from the first cell group. | 10-03-2013 |
20130265991 | Primary and Secondary Cell Group Configuration - A base station transmits control message(s) to a wireless device configuring secondary cell(s). Each of the secondary cells is assigned to a cell group in a plurality of cell groups comprising a primary cell group and at least one secondary cell group. The control message(s) comprise dedicated parameters. If dedicated parameters comprise a cell group index for the secondary cell, the wireless device assigns the secondary cell to one of the at least one secondary cell group identified by the cell group index. Otherwise, the wireless device assigns the secondary cell to the primary cell group. | 10-10-2013 |
20130272229 | Preamble Transmission in a Wireless Device - A wireless device receives a control message configuring cell groups comprising a primary cell group and a secondary cell group. The wireless device receives a control command causing the wireless device to transmit a random access preamble on random access resources of a secondary cell in the secondary cell group. The wireless device transmits the random access preamble on the random access resources to the base station. Transmission timing of the random access preamble is determined, at least in part, employing uplink subframe transmission timing of the primary cell or a stored timing advance value. | 10-17-2013 |
20130272230 | Uplink Transmission Power in a Multicarrier Wireless Device - A wireless device receives a message indicating transmission of a sounding reference signal in a symbol on subframe n on a first cell in a first cell group. The symbol overlaps in time with transmission of a packet on at least one of: subframe n and n+1 in a second cell in a second cell group. The wireless device transmits the sounding reference signal if a power parameter is less than a maximum allowable transmission power in the symbol. A calculation of the power parameter considers transmission power of the packet according to a pre-configured rule. | 10-17-2013 |
20130272231 | Wireless Device Transmission Power - A wireless device transmits a first packet in subframe n of a first cell of a first cell group and transmits a second packet in subframe n+1 of a second cell of a second cell group overlapping in time with the transmission of the first packet. The wireless device reduces a subframe transmission power of at least one of the first packet and the second packet if a power parameter is more than an allowable transmission power. A calculation for the power parameter considers transmission power of the first packet and the second packet according to a pre-configured rule. | 10-17-2013 |
20130272232 | Transmit Power Control in Multicarrier Communications - A wireless device may compute transmission power of an uplink packet employing a first parameter calculated by accumulation of an initial value and at least one power control value corresponding to a sequence of subframes. The sequence of subframes starts from an initial subframe and ends with the first subframe. The initial subframe is identified by the most recent subframe before the first subframe with one of the following events: a predefined transmit power parameter value is updated by higher layers; and a random access response is received corresponding to a transmitted random access preamble on a secondary cell. | 10-17-2013 |
20130272233 | Power Control in a Wireless Device - A wireless device receives a control command to transmit a random access preamble on random access resources of a secondary cell in a secondary cell group. The wireless device receives a random access response providing an uplink grant to transmit an uplink packet. The wireless device computes the transmission power of the uplink packet employing, at least in part, a first parameter calculated by summation of: a power control value corresponding to a power control field in the uplink grant; and a total power ramp-up from the first transmission to the last transmission of the random access preamble. | 10-17-2013 |
20130272279 | Timing in a Multicarrier Wireless Device - A base station configures a primary cell group and at least one secondary cell group in a wireless device. The wireless device transmits first uplink signals in the secondary cell group employing a reference secondary cell in the secondary cell group as a timing reference. The wireless device autonomously selects a new activated secondary cell in the secondary cell group as the timing reference. The new activated secondary cell is different from the reference secondary cell. The wireless device transmits second uplink signals in the secondary cell group employing the new activated secondary cell as the timing reference. | 10-17-2013 |
20130279433 | Cell Timing in a Wireless Device and Base Station - A wireless device receives a control message configuring cell groups comprising a primary cell group and a secondary cell group. The wireless device receives a timing advance command comprising a time adjustment value and an index identifying the secondary cell group. The wireless device applies the time adjustment value to uplink transmission timing of the secondary cell group. The wireless device triggers an action in response to detecting a difference between primary cell group timing and secondary cell group timing, the difference being greater than a threshold. | 10-24-2013 |
20130279434 | Sounding Signal in a Multicarrier Wireless Device - A wireless device receives message(s) configuring cell groups and transmissions of sounding reference signals. n sounding reference signals are configured to be transmitted in a subframe (n>1). The wireless device transmits at least one packet on at least one first cell in symbols of the subframe. The symbols comprise the last symbol of the subframe. The wireless device transmits a k subset of the n sounding reference signals in the last symbol (1<=k10-24-2013 | |
20130279435 | Uplink Transmissions in a Wireless Device - A wireless device receives a control command causing the wireless device to transmit a random access preamble on a random access channel of a first cell. The wireless device transmits, overlapping in time with transmission of the random access preamble, an uplink packet on a first subframe of the first cell. Transmission power of the uplink packet is calculated considering a maximum allowable transmission power in the first subframe of the first cell and the transmission power of the random access preamble. | 10-24-2013 |
20130286987 | Sounding Reference Signal - A wireless device receives RRC message(s) configuring transmissions of sounding reference signals on a second carrier in a second carrier group. The wireless device receives a random access response comprising a timing advance command. The wireless device transmits the sounding reference signals on the second carrier after applying the timing advance command to the second carrier group. The wireless device is configured to not transmit any of the sounding reference signals on the second carrier during a period between receiving the RRC message and applying the timing advance command to the second carrier group. | 10-31-2013 |
20130294369 | Control Channel in a Wireless Communication System - A base station receives channel state information from a wireless device. The base station transmits to the wireless device one or more data packets on a data channel employing a first precoding matrix identifier. The base station transmits one or more control packets on a control channel to the wireless device employing a second precoding matrix. | 11-07-2013 |
20130294385 | Enhanced Control Channel for a Wireless Device - A base station receives a first radio resource control (RRC) message comprising parameter(s) indicating whether a wireless device supports an enhanced physical downlink control channel (ePDCCH). The base station transmits a second RRC message causing configuration of first radio resources of a first ePDCCH. The base station transmits scheduling information on the first ePDCCH. | 11-07-2013 |
20130297515 | Wireless Payment with a Portable Device - A portable device receives an account information request signal from a merchant machine. The portable device transmits a response message to the merchant machine. The response message comprises the account information for a purchase. The portable device transmits a first message to an account server. The first message comprises a request to get information comprising the purchase amount. The portable device receives a second message comprising the information from the account server. The portable device sends the purchase amount to a display. | 11-07-2013 |
20130308576 | Channel Configuration in a Wireless Network - A base station transmits a message configuring first radio resources of a control channel. The first radio resources comprise one or more sets of resource blocks in a subset of subframes in a plurality of subframes. The base station transmits scheduling information on the control channel for a packet transmitted on an uplink data channel. The base station transmits a positive or negative acknowledgement on second radio resources of a feedback channel for receiving the packet. The second radio resources start from the first OFDM symbol of the second subframe. | 11-21-2013 |
20130322382 | Radio Resource Configuration - A base station transmits first scheduling information on a first control channel for a first packet communicated with a first wireless device. First radio resources of the first control channel start from the first OFDM symbol of each subframe. The base station transmits a radio resource control (RRC) message causing configuration of second radio resources of a second control channel in a second wireless device. The second radio resources comprise resource blocks in a subset of subframes. The base station transmits second scheduling information on the second control channel for a second packet communicated with the second wireless device. | 12-05-2013 |
20130322383 | TRANSMISSION POWER IN A MULTICARRIER WIRELESS DEVICE - A wireless device receives a command for transmission of a random access preamble on a first cell. The wireless device transmits the random access preamble in parallel with a first packet and/or at least one second packet. If a total calculated transmission power exceeds a predefined value, the wireless device adjusts transmission power of one or more of the at least one parallel uplink transmission considering a higher priority for the transmission power of the random access preamble. | 12-05-2013 |
20130329675 | Sounding Reference Signal Transmission - A first transmission of sounding reference signals is on a first cell of a first cell group in parallel with transmission of at least one of a first random access preamble in a second cell group, and a first uplink packet on a second cell. The wireless device drops a second transmission of sounding reference signals in a symbol of the first cell if at least one of the following conditions is satisfied: a second random access preamble is transmitted overlapping the symbol in the first cell group, and a second uplink packet is transmitted overlapping the symbol in the first cell. | 12-12-2013 |
20130329708 | Primary and Secondary Cell Group Configuration - A base station transmits a message assigning each secondary cell to a cell group. The message comprises dedicated parameters for a secondary cell. If the dedicated parameters comprise a cell group index for the secondary cell, the secondary cell is assigned to a secondary cell group. Otherwise, the secondary cell is assigned to the primary cell group. The message comprises MAC dedicated parameters comprising a sequence of at least one information element. Each information element comprises a first cell group index of a first secondary cell group and a corresponding time alignment timer value. | 12-12-2013 |
20130336294 | Wireless Device Connection to an Application Server - A base station transmits a first message to a wireless device over a primary cell group. The first message comprises a content descriptor and originates from an application server. The base station transmits to the wireless device over the primary cell group: first content packets; a control message configuring a secondary cell group; and an activation command activating one or more secondary cells in the secondary cell group. The base station transmits second content packets over the primary cell group and the secondary cell group. | 12-19-2013 |
20130336295 | Packet Transmission in Wireless Networks - A wireless device transmits to a base station over a primary cell group a first control message comprising the size of a buffer storing a first portion of content data. The wireless device receives a second control message from the base station over the primary cell group configuring a secondary cell group. The wireless device receives a third control message initiating an uplink timing synchronization process for the secondary cell group. The wireless device transmits a plurality of content packets addressed to an application server to the base station over the primary cell group and the secondary cell group. | 12-19-2013 |
20130336296 | Carrier Grouping in Multicarrier Wireless Networks - A base station transmits an RRC message to modify a first cell group index of a first cell. If the first cell is a primary cell, the RRC message reconfigures the primary cell as a secondary cell with an updated first cell group index and the RRC message comprises mobility control information. If the first cell is a secondary cell, the RRC message releases the secondary cell and adds the secondary cell with an updated first cell group index without employing mobility control information. | 12-19-2013 |
20130336298 | Timing in a Multicarrier Wireless Device - A wireless device receives a control command causing transmission of a random access preamble on a reference secondary cell in a secondary cell group. The reference secondary cell is employed as a timing reference to transmit first uplink signals in the secondary cell group. The wireless device receives a random access response comprising a timing advance command for the secondary cell group. The wireless device, autonomously and when a predefined condition is met, selects a new activated secondary cell in the secondary cell group as the timing reference. | 12-19-2013 |
20130343296 | Automobile Communication Device - An automobile communication device receives a message from a peripheral device installed in an automobile. The message triggers a request to be transmitted to a server. The automobile communication device transmits the request over a primary cell group. The automobile communication device receives over the primary cell group a control message configuring a secondary cell group. The automobile communication device receives a plurality of packets over the primary cell group and the secondary cell group. The automobile communication device forwards the plurality of packets to the peripheral device. | 12-26-2013 |
20130343297 | Carrier Configuration in Wireless Networks - A wireless device receives a first RRC message configuring a plurality of cells, a primary cell group, and a secondary cell group. The wireless device receives a second RRC message to reconfigure cell group configurations. The second RRC message is configurable to cause the modification of the cell group configuration of a secondary cell without explicitly releasing the secondary cell if the second RRC message comprises mobility control information. The second RRC message is unconfigurable to cause modification of the cell group configuration of the secondary cell without explicitly releasing the secondary cell if the RRC message does not comprise mobility control information. | 12-26-2013 |
20130343345 | Handover Signalling in Wireless Networks - A serving base station receives a first message comprising at least one parameter indicating whether a wireless device supports configuration of timing advance groups (TAGs). The serving base station transmits a second message causing assignment of each of at least one secondary cell to a TAG in a first plurality of TAGs. The serving base station transmits a third message to a target base station. The third message comprises at least one of: the at least one parameter indicating whether the wireless device supports configuration of the plurality of TAGs; and configuration information of the first plurality of TAGs. | 12-26-2013 |
20140003385 | Radio Resources for Data and Scheduling Information | 01-02-2014 |
20140010163 | Transmission Timing in a Carrier Group - A base station configures a first carrier group and a second carrier group in a wireless device. The wireless device transmits first uplink signals in the second carrier group employing a first secondary carrier in the second carrier group as a timing reference carrier. The wireless device autonomously changes the timing reference carrier to a second secondary carrier in the second carrier group. The second secondary carrier is an active carrier different from the first secondary carrier. The wireless device transmits second uplink signals in the second carrier group employing the second secondary carrier as the timing reference carrier. | 01-09-2014 |
20140029517 | Multicarrier OFDM Transmission - A base station transmits a first message comprising a field describing content over a first plurality of subcarriers. The base station receives a second message requesting for the content. The base station transmits a first plurality of content packets to the wireless device over a second plurality of subcarriers of a first carrier. The first plurality of packets comprises a first portion of the content. The base station transmits a second plurality of packets to the wireless device over the first carrier and at least one additional carrier over a third plurality of subcarriers. | 01-30-2014 |
20140029551 | Enhanced Multicarrier Transmission Using Orthogonal Subcarriers - A device transmits and/or receives voice packets on a first plurality of subcarriers. There is no guard band between any two subcarriers in the first plurality of subcarriers. The device transmits and/or receives a first subset of data packets on a second plurality of subcarriers and a second subset of the data packets on a third plurality of subcarriers. The following limitations may apply: a) there is no guard band between any two subcarriers in the second plurality of subcarriers, and b) there is at least a guard band between at least two subcarriers in the third plurality of subcarriers. | 01-30-2014 |
20140029577 | Handover Signaling in a Wireless Network - A serving base station transmits to a target base station a first message comprising a parameter indicating whether a wireless device supports an enhanced physical downlink control channel (ePDCCH). The serving base station receives from the target base station a second message comprising parameters indicating: a configuration of a subset of subframes in which first radio resources of a first ePDCCH are configured; and a starting OFDM symbol of the first ePDCCH in the subset of subframes. The serving base station transmits a third message to the wireless device comprising the configuration information of the first ePDCCH. | 01-30-2014 |
20140064240 | Channel Configuration in a Wireless Network - A base station transmits a message comprising configuration parameters of first radio resources of a control channel. The first radio resources comprise one or more sets of resource blocks in a subset of subframes in a plurality of subframes. The base station transmits scheduling information on the control channel for a packet transmitted on an uplink data channel. The base station transmits a positive or negative acknowledgement on second radio resources of a feedback channel for the received packet. The second radio resources start from the first OFDM symbol of a second subframe. | 03-06-2014 |
20140105165 | Radio Resources Configuration Signaling in a Wireless Network - A wireless device receives an RRC message comprising configuration parameters of radio resources of a control channel. The radio resources comprise multiple sets of resource blocks in a subset of subframes. The RRC message indicates the subset of subframes and a first starting symbol of both the control channel and a data channel in the subset of subframes. The configuration parameters comprise an array of parameters. Each element in the array comprises frequency resource parameters for a set of resource blocks. The multiple sets of resource blocks comprise non-overlapping sets of resource blocks in the subset of subframes. | 04-17-2014 |
20140105175 | Random Access Failure in Wireless Device Multiple Timing Advance Groups - A wireless device receives a control command to transmit a random access preamble on a first secondary cell. The wireless device repeatedly transmits the random access preamble until a random access response corresponding to the random access preamble is received or a predetermined number of transmissions is reached. If the predetermined number of transmissions is reached without receiving the random access response, the wireless device stops transmission of the random access preamble and keeps a connection with the base station active. | 04-17-2014 |
20140177577 | CONTROL AND DATA CHANNEL RADIO RESOURCE CONFIGURATION - A base station transmits on a first control channel first scheduling information for a control message. First radio resources of the first control channel start from the first symbol of each subframe in a plurality of subframes. The base station transmits the control message configuring second radio resources of a second control channel. The second radio resources comprise resource blocks in a subset of subframes in the plurality of subframes. The control message indicates the subset of subframes and a starting symbol of the second control channel. The base station transmits second scheduling information on the second control channel. | 06-26-2014 |
20140177578 | Channel Configuration in a Wireless Network - A base station transmits a message comprising configuration parameters of first radio resources of a control channel. The first radio resources comprise one or more sets of resource blocks in a subset of subframes in a plurality of subframes. The base station transmits scheduling information on the control channel for a packet transmitted on an uplink data channel. The base station transmits a positive or negative acknowledgement on second radio resources of a feedback channel for the received packet. The second radio resources start from the first OFDM symbol of a second subframe. | 06-26-2014 |
20140177598 | Handover Signaling in Wireless Networks - A first base station transmits at least one message to configure at least one backward compatible carrier and at least one non-backward compatible carrier in a wireless device. The first base station transmits, in response to the first base station making a handover decision, a second message to a second base station. The second message comprises parameters indicating whether the wireless device supports configuration of non-backward compatible carriers, configuration information of at least one backward compatible carrier and/or configuration information of at least one non-backward compatible carrier. | 06-26-2014 |
20140177623 | Transmission Timing in a Carrier Group - Transmission timing of a random access preamble in an uplink carrier of a carrier group being determined employing a synchronization signal transmitted on a downlink carrier of the carrier group. The wireless device receives a time alignment command from the base station. The time alignment command comprises a time adjustment value and an index identifying the carrier group. The wireless device applies the time adjustment value to uplink signals transmitted on any activated uplink carriers in the carrier group. | 06-26-2014 |
20140185572 | Carrier Grouping in Multicarrier Communications - A wireless device receives messages comprising parameters of carriers and carrier groups. Downlink transmissions on a first carrier and at least one second carrier are substantially time aligned with each other. The wireless device receives time alignment commands comprising a time adjustment value and an index identifying a carrier group. Uplink transmissions on a first carrier group and a second carrier group employ different synchronization signals on different carriers as timing reference and are adjusted in response to different time alignment commands. | 07-03-2014 |
20140269591 | Multi-Cell Signals in OFDM Wireless Networks - A wireless device receives control messages indicating CSI measurement resources of cells belonging to at least two base stations or belonging to at least two sectors of a base station. The wireless device measures CSI employing at least CSI measurement resources of the cells. The wireless device quantizes the measured CSI jointly across cells and encodes and transmits the jointly quantized CSI. The wireless device receives a resource assignment for data packets from one serving cell in the subset of cells. The wireless device simultaneously receives signals carrying the data packets from multiple cells. | 09-18-2014 |
20140328315 | CONTROL AND DATA CHANNEL RADIO RESOURCE CONFIGURATION - A base station transmits on a first control channel first scheduling information for a control message. First radio resources of the first control channel start from the first symbol of each subframe in a plurality of subframes. The base station transmits the control message configuring second radio resources of a second control channel. The second radio resources comprise resource blocks in a subset of subframes in the plurality of subframes. The control message indicates the subset of subframes and a starting symbol of the second control channel. The base station transmits second scheduling information on the second control channel. | 11-06-2014 |
20150009946 | Beam Information Exchange between Base Stations - A base station receives a message comprising at least one index identifying a subset of a second plurality of beamforming codewords. Each of the second plurality of beamforming codewords is identifiable by an index presented by a number of bits. The number of bits is greater than or equal to log | 01-08-2015 |
20150043511 | Control Channel Detection - A wireless device at least demodulates, descrambles and decodes a first control signal to generate a first signal. The wireless device processes the first signal by at least encoding, scrambling, modulating and scaling the first signal. The wireless device subtracts the processed first signal from received signals to generate a second signal. The wireless device at least demodulates, descrambles and decodes the second signal to generate a second control message. | 02-12-2015 |
20150063268 | Beamforming Codeword Exchange between Base Stations - A first base station receives from a second base station at least one message comprising beamforming information indicating at least one second beamforming codeword. The at least one second beamforming codeword has a number of rows or columns equal to or less than a number of antenna ports employed by the second base station for beamforming. The first base station selects at least one first beamforming codeword. The selection is based, at least in part, on the beamforming information. The first base station transmits employing the at least one first beamforming codeword, signals on at least one resource block. | 03-05-2015 |
20150063308 | Beamforming Handover Messaging in a Wireless Network - A first base station transmits a message to a second base station after a handover decision for a wireless device supporting beamforming and multiple carrier configurations. The message includes a plurality of measurement configuration parameters for the wireless device. The first base station receives a response from the second base stations. The first base station transmits a handover command to the wireless device subsequent to receiving the response message. | 03-05-2015 |
20150063314 | Handover Signaling for Beamforming Communications - A first base station receives a first message comprising one or more parameters indicating whether a wireless device supports configuration of a number of channel state information (CSI) processes. The first base station transmits at least one second message comprising configuration parameters of CSI reference signals. The first base station transmits, to a second base station after making a handover decision, at least one third message comprising at least one of the one or more parameters and the configuration parameters of the CSI reference signals. | 03-05-2015 |
20150063488 | Beamforming Signaling in a Wireless Network - A wireless receives at least one channel state input information element (IE) from a first base station. The wireless device computes a precoding matrix indicator (PMI) employing, at least in part, the at least one channel state input IE and measurement of signals received at least from at least one antenna port of a second base station. The wireless device transmits channel state information comprising the PMI to the first base station. The wireless device receives at least one data packet employing beamforming according to a precoding matrix identified by the PMI. | 03-05-2015 |
20150078318 | Multicarrier Signal Transmission in Wireless Communications - A wireless device receives a control command for transmission of a random access preamble on a first cell. A first packet is scheduled for parallel uplink transmission with the random access preamble transmission. The wireless device transmits the random access preamble. The wireless device transmits the first packet in parallel with the random access preamble if the random access preamble and the first packet are scheduled for transmission in different cell groups and the wireless device has sufficient power to transmit the first packet in parallel with the preamble. | 03-19-2015 |
20150085693 | MULTI-CELL SIGNALS IN OFDM WIRELESS NETWORKS - A wireless device receives control messages indicating CSI measurement resources of cells belonging to at least two base stations or belonging to at least two sectors of a base station. The wireless device measures CSI employing at least CSI measurement resources of the cells. The wireless device quantizes the measured CSI jointly across cells and encodes and transmits the jointly quantized CSI. The wireless device receives a resource assignment for data packet(s). The wireless device receives signals carrying the data packets from multiple cells. | 03-26-2015 |
20150085806 | Channel State Information Feedback - A wireless device receives a first reference signal from a first base station and estimates a first signal strength based on the received first reference signal. The wireless device receives a second reference signal from a second base station and estimates a second signal strength based on the received second reference signal. The wireless device estimates an interference value based, at least in part, on the second reference signal. The wireless device estimates a signal to interference ratio value based on the second signal strength and a total interference value. The total interference value is computed based upon the interference value or the interference value plus the first signal strength. | 03-26-2015 |