| Patent application number | Description | Published |
|---|
| 20090067391 | Separate Rank and CQI Feedback in Wireless Networks - A transmission of information within a wireless network may include a first and second type of feedback information, wherein the second type of feedback information is derived based on the first type of feedback information. The first type of feedback information is embedded in a configured frame every T1 frames. The second type of feedback is embedded in a configured frame every T2 frames, wherein T1 is greater than or equal to T2. A sequence of frames is transmitted from one node in the network to a second node on an uplink control channel. | 03-12-2009 |
| 20090109873 | Selective Rank CQI and PMI Feedback in Wireless Networks - Within a wireless network, feedback information is used to determine channel quality. A node in the network receives a configuration message indicating at least a first type of feedback information and a subset S | 04-30-2009 |
| 20090110114 | Open-Loop MIMO Scheme and Signaling Support for Wireless Networks - Transmission with multiple antennas in a wireless network is performed by selecting between adaptive precoding and fixed precoding based on a selection criterion. Transmission using spatial multiplexing with adaptive precoding is performed if the selection criterion is fulfilled. Transmission using spatial multiplexing with fixed preceding is performed if the selection criterion is unfulfilled. | 04-30-2009 |
| 20090196366 | Transmission of Uplink Control Information with Data in Wireless Networks - Within a wireless network, feedback information from one node to another node is necessary to support various functions. The first node receives an allocation of resources for data transmission. The first node generates cyclic redundancy check (CRC) bits for a selected feedback control information type and encodes the selected feedback information and the CRC bits. The encoding of the feedback information and the CRC bits is adaptive based the amount of allocated resources. The encoded feedback information and CRC bits are then transmitted to the other node using a subset of the allocated resources on the physical shared channel that is normally used only for data transmissions. | 08-06-2009 |
| 20090199055 | Interleaver Design with Unequal Error Protection for Control Information - For transmission of a block of control information within a wireless network, the control information is interleaved to form an ordered set of control bits, wherein more important information bits of the control information are placed into a first portion of the ordered set of control bits, with less important information bits of the control information placed into a second portion of the ordered set of controls bits. The ordered set of control bits is encoded to form an encoded block of data. The encoded block of data is transmitted to a serving base station, wherein bits from the first portion of the ordered set of control bits will statistically have a lower bit error rate (BER) than bits from the second portion of the ordered set of control bits during transmission. | 08-06-2009 |
| 20090201825 | Partial CQI Feedback in Wireless Networks - Within a wireless network, feedback information from user equipment (UE) to a control node (eNodeB) is necessary to support various functions. A UE receives an allocation from the eNodeB comprising a plurality of periodic transmission instances for a channel quality indicator (CQI) and a schedule comprising a plurality of periodic transmission instances for a rank indicator (RI), wherein the CQI comprises RI and other CQI fields. The UE then transmits an RI without transmitting the other CQI fields in a transmission instance allocated for both RI and other CQI fields. | 08-13-2009 |
| 20090203383 | Transmission of Feedback Information on PUSCH in Wireless Networks - A transmission of feedback information from a secondary to a primary node occurs in a plurality of N logical time durations. The secondary node receives an allocation of resources comprising a plurality of resource elements on an uplink shared data channel. The secondary node generates feedback information in response to transmissions from the primary node and normally transmits feedback information to the primary node on a control channel. On occasion, the secondary node receives a trigger from the primary node. In response to the trigger, the secondary node transmits the feedback information using a subset of the allocated resource elements on the uplink shared data channel. | 08-13-2009 |
| 20090232070 | Data and Control Multiplexing in PUSCH in Wireless Networks - Transmission of information in a wireless network is performed by allocating a channel from a transmitter to a receiver. The channel has at least one time slot with each time slot having a plurality of symbols. Each slot contains at least one reference symbol (RS). As information becomes available for transmission, it is classified as prioritized information (PI) and other information. One or more priority symbols are generated using the digital samples of the priority information. Other symbols are generated using the other data. Priority symbols are transmitted on the channel in a manner that separation of priority symbol(s) and a reference symbol does not exceed a time duration of one symbol. For example, Rank Indicator (RI) is transmitted using symbol k, ACKNAK is transmitted using symbol k+1; and the reference signal (RS) is transmitted using symbol k+2, wherein symbols k, k+1, and k+2 are consecutive in time. The other symbols are transmitted in available locations. | 09-17-2009 |
| 20100124291 | Receivers for Embedded ACK/NAK in CQI Reference Signals in Wireless Networks - Within a wireless network, uplink control information (UCI) transmitted by user equipment is received by a base station. The UCI includes a least two elements, a first set of symbols produced using a first information element and a second set of symbols produced using a second information element. At least a first metric is produced using the first set and the second set of received symbols. The first information element may then be detected using the first metric. | 05-20-2010 |
| 20100210256 | Transmission of Bundled ACK/NAK Bits - This invention is applicable to wireless communication between a user equipment (UE) and a base station using frames where at least one uplink (UL) is assigned a subframe to respond to a plurality of DL assigned subframes. This invention is an improvement in the acknowledge (ACK) or non-acknowledge (NAK) response by the UE. The UE generates an ACK or NAK dependent upon whether a DL communication is correctly received. For an UL subframe assigned to respond to communications on plural DL subframes, the UE logically combines plural ACK/NAK responses into a single bundled response for transmission to the base station. This logical combining produces a bit in a first digital state if all said responses are ACKs and in a second opposite digital state if any response is a NAK. | 08-19-2010 |
| 20100285792 | Coordinated Multi-Point Transmission in a Cellular Network - Coordinated multi-point (CoMP) transmissions in a cellular network is performed using multi-broadcast single frequency network (MBSFN) subframes. During CoMP transmission, demodulation reference signals (DRS) are placed in the one portion the MDSFN subframe, while cell-specific reference signals (CRS) are placed in a separate portion of the MDSFN subframe. Therefore, no CRS-DRS collision will occur during CoMP transmission. | 11-11-2010 |
| 20100303034 | Dual-Layer Beam Forming in Cellular Networks - Single user and multiuser MIMO transmission in a cellular network may be performed by selecting by a base station (eNB) to transmit either one or two transmission layers. When one transmission layer is selected, a first transmission layer is precoded with a first precoder. A first demodulation reference signal (DMRS) sequence or a second DMRS sequence is selected by the eNB and precoded using the first precoder. The first transmission layer is transmitted with the selected precoded DMRS from the eNB to a user equipment (UE), and an indicator is transmitted to the UE to indicate which DMRS sequence is selected and transmitted. | 12-02-2010 |
| 20100322176 | Multiple CQI Feedback for Cellular Networks - Single user and multiuser MIMO transmission in a cellular network may be performed by a base station (eNB) transmitting either one or two transmission layers. A user equipment (UE) receives a reference symbol from the base station. The UE processes the reference symbol with one or more of a plurality of precoding matrices to form a plurality of channel quality indices (CQI). The UE provides feedback to the eNB comprising one or more feedback CQI selected from the plurality of CQI and one or more precoding matrix indicators (PMI) identifying the one or more precoding matrices used to form each of the one or more feedback CQIs, wherein at least two PMI are included in the feedback. | 12-23-2010 |
| 20110032839 | Multiple Rank CQI Feedback for Cellular Networks - Single user and multiuser MIMO transmission in a cellular network may be performed by a base station (eNB) transmitting either one, two, or more transmission layers. A user equipment (UE) receives a reference symbol from the base station. The UE processes the reference symbol with one or more of a plurality of precoding matrices to form a plurality of channel quality indices (CQI). The UE provides feedback to the eNB comprising one or more feedback CQI selected from the plurality of CQI and one or more precoding matrix indicators (PMI) identifying the one or more precoding matrices used to form each of the one or more feedback CQIs for two or more ranks. | 02-10-2011 |
