1. Methods and apparatus for collecting, measuring, reporting and/or using information which can be used for interference control purposes. Wireless terminals measure signals transmitted from one or more base stations, e.g., base station sector transmitters. The measured signals may be, e.g., beacon signals and/or pilot signals. From the measured signals, the wireless terminal generates one or more gain ratios which provide information about the relative gain of the communications channels from different base station sectors to the wireless terminal. This information represents interference information since it provides information about the signal interference that will be caused by transmissions from other base station sectors relative to transmissions made by the base station sector to which the wireless terminal is attached. Based on the signal energy measurements and relative gains generated from the energy measures, reports are generated in accordance with the invention and sent to one or more base stations.
    公开号: 申请人:LAROIA RAJIV LI JUNYI RANGAN SUNDEEP SRINIVASAN MURARI HANDE PRASHANTH 申请日:2005年10月14日 分类号:H04J11/00 H04B1/00 H04B7/00 H04B7/216
  2. A communication system includes a downlink indicator channel for the transmission of an indicator signal indicating that a data packet is scheduled to be transmitted on a downlink data channel from a primary station to a secondary station. In response to detection of the indicator signal, the secondary station transmits a status signal, for example a negative acknowledgement signal, on an uplink channel to the primary station immediately before transmission of a positive or negative acknowledgement signal to indicate the status of the received data packet. By providing the primary station with two chances to detect the case where the secondary station fails to detect the indicator signal, peak power requirements of the uplink channel can be reduced, thereby reducing system interference levels.
    公开号: 申请人:KONINKL PHILIPS ELECTRONICS NV 申请日:2005年02月08日 分类号:H04L1/00 H04W72/14 H04B1/00 H04L1/12 H04L1/14 H04L1/16 H04L1/18 H04W52/02 H04L12/26
  3. Embodiments of a system and method for providing DRX enhancements in LTE systems are generally described herein. In some embodiments, a system control module is provided for controlling communications via a communications interface. A processor is coupled to the system control module and is arranged to implement an inactivity timer and an on-duration timer for determining an active time for monitoring subframes on the physical downlink control channel for control signals, the processor further monitoring subframes after the active time.
  4. An evolved Node B (eNB) and method for coherent coordinated multipoint transmission with per CSI-RS feedback are generally described herein. The eNB may configure a first cooperating point and a second cooperating point to jointly transmit a multi-node channel-state information (CSI) reference signal (RS) (CSI-RS) in predetermined resource elements of a resource block. The eNB may receive CSI reports as feedback from user equipment (UE). The CSI reports may include a precoding matrix indicator (PMI) indicating relative phase information between the cooperating points based on the multi-node CSI-RS. The CSI reports for the multi-node CSI-RS may be restricted to a PMI of rank-1. The eNB may configure the cooperating points for a coherent joint transmission to the UE based at least on the relative phase information. The coherent joint transmission may also be jointly beamformed based on single-node PMIs.
  5. A method of encoding data for transmission from a source to a destination over a communications channel is provided. A plurality of redundant symbols are generated from an ordered set of input symbols to be transmitted. A plurality of output symbols are generated from a combined set of symbols including the input symbols and the redundant symbols, wherein the number of possible output symbols is much larger than the number of symbols in the combined set of symbols, wherein at least one output symbol is generated from more than one symbol in the combined set of symbols and from less than all of the symbols in the combined set of symbols, and such that the ordered set of input symbols can be regenerated to a desired degree of accuracy from any predetermined number, N, of the output symbols.
    公开号: 申请人:QUALCOMM INC 申请日:2010年05月17日 分类号:H03M13/19 H04K1/02 H03M7/00 H03M13/00 H03M13/11 H03M13/29 H03M13/37 H03M13/47 H04L1/00 H04L25/49 H04L27/04
  6. A method and system for an enhanced uplink (EU) operation in a wireless communication system during soft handover. The system comprises a wireless transmit/receive unit (WTRU), at least two Node-Bs, and a radio network controller (RNC). One Node-B may be designated as a primary Node-B, and the primary Node-B may control EU operation during soft handover including uplink scheduling and hybrid automatic repeat request (H-ARQ). Soft buffer corruption is avoided during soft handover by controlling H-ARQ by the primary Node-B. Alternatively, an RNC may control EU operation during soft handover including H-ARQ. In this case, an RNC generates final acknowledge/non-acknowledge (ACK/NACK) decision based on the error check results of the Node-Bs.
  7. A method and wireless transmit receive unit (WTRU) are disclosed that is configured to perform cell reselection to another cell when the WTRU is in a CELL_FACH state using an Enhanced-Dedicated Channel (E-DCH). The cell reselection is based on internal measurements by the WTRU. Alternatively, the cell reselection can be WTRU based on the WTRU measurements reported to the network.
    公开号: 申请人:INTERDIGITAL PATENT HOLDINGS 申请日:2012年10月31日 分类号:H04W36/36 H04W8/26 H04W36/08 H04W36/16 H04W36/30 H04W24/10
  8. In one example, a device for receiving information for multimedia data, the device comprising one or more processors configured to analyze at least a portion of a manifest file for multimedia content, wherein the portion of the manifest file includes information indicative of sets of representations of the multimedia content and information indicative of common characteristics for each of the sets of representations, select one of the sets of representations based on the common characteristics for the one of the sets of representations, select one of the representations of the selected one of the sets of representations based on one or more coding characteristics of the one of the representations of the one of the sets, and generate a request for data of the one of the representations based on the selection.
    公开号: 申请人:CHEN YING STOCKHAMMER THOMAS WATSON MARK QUALCOMM INC 申请日:2011年08月08日 分类号:H04L29/06 G06F15/16
  9. A method for determining a channel quality in wireless communications includes receiving a high speed shared control channel (HS-SICH) transmission. An expected number of HS-SICH transmissions and a number of unsuccessful HS-SICH transmissions are counted. The number of unsuccessful HS-SICH transmissions includes a number of failed HS-SICH transmissions and a number of missed HS-SICH transmissions. The expected number of HS-SICH transmissions and the number of unsuccessful HS-SICH transmissions over a fixed time period are periodically reported, whereby the reporting is an indication of the channel quality.
  10. In a wireless mobile communication system, user equipment receives downlink data and downlink control information including resource allocation information for the downlink data from a base station. Downlink data is mapped to physical resource blocks (PRBs) based on the downlink control information. The resource allocation information indicates virtual resource block (VRB) allocations for the user equipment. Indexes of PRBs to which the downlink data are mapped are determined based on mapping relationship between VRBs and the PRBs. The mapping relationship is defined such that indexes of the VRBs are mapped to indexes of the PRBs for a first part and a second part of a subframe. The received downlink control information includes control information that determines whether the indexes of the PRBs for the second part are separated with respect to the indexes of the PRBs for the first part based on a predetermined gap in a distributed mode where distributed VRBs are used or whether the indexes of the PRBs for the second part are not separated with respect to the indexes of the PRBs for the first part in a non-distributed mode where localized VRBs are used.
    公开号: 申请人:OPTIS CELLULAR TECHNOLOGY LLC 申请日:2015年03月13日 分类号:H04W72/04 H04L1/00 H04L1/04 H04L5/00 H04W72/12 H04W88/08
  11. An audio encoder for encoding audio samples has a first time domain aliasing introducing encoder configured to decode audio samples in a first encoding domain and having a first framing rule, a start window and a stop window. The audio encoder further has a second encoder configured to encode samples in a second encoding domain and having a predetermined frame size number of audio samples, and a coding warm-up period number of audio samples, the second encoder having a different second framing rule, a frame of the second encoder being an encoded representation of a number of successive audio samples that is equal to the predetermined frame size number of audio samples. The audio encoder further has a controller switching from the first to the second encoder and for modifying the second framing rule or for modifying the start or the stop window of the first encoder.
  12. Embodiments of wireless communication devices and method for discontinuous reception (DRX) mode in wireless communication are generally described herein. Some of these embodiments describe a wireless communication device having processing circuitry arranged to determine to use an extended paging discontinuous reception (DRX) value to increase a paging cycle length above a value and select a first periodicity, based on the extended paging DRX value, at which the UE is to perform evaluation of a parameter of a network in which the UE is opera. The wireless communication device may have physical layer circuitry arranged to transmit a message to the network, indicating that the UE desires to perform evaluation of the parameter at the first periodicity. Other methods and apparatuses are also described.
  13. A method for performing a precoding based on a generalized phase shift or a precoding based on an extended phase shift in a Multi-Input Multi-Output (MIMO) system employing several sub-carriers, and a transceiver for supporting the same are disclosed. A phase-shift-based precoding matrix is generalized by multiplying a diagonal matrix for a phase shift by a unitary matrix for maintaining orthogonality between sub-carriers. In this case, a diagonal matrix part may be extended by multiplying a precoding matrix for removing an interference between sub-carriers by a diagonal matrix for a phase shift. By generalization and extension of the phase-shift-based precoding, a transceiver is more simplified, and a communication efficiency increases.
    公开号: 申请人:IHM BIN CHUL LEE WOOK BONG LEE MOON IL CHUN JIN YOUNG 申请日:2011年05月17日 分类号:H04B7/04 H04J11/00 H04J99/00 H04B1/38 H04L27/04 H04L27/06
  14. A user equipment (UE) communicating with a radio access network (RAN) sends to a network entity (e.g., an MSC/SGSN) a request for periodic reporting of the UE location to a client entity. After the request is approved, the MSC/SGSN sends to the RAN signaling to initiate periodic location reporting for the UE. The RAN may request a positioning center (e.g., a SAS) to send assistance data to the UE. The RAN may coordinate and control the periodic location reporting or may pass the control over to the positioning center. For each location reporting, the UE sends location information (e.g., measurements made by the UE or a location estimate computed by the UE) to the RAN. The SAS computes a location estimate if the UE sends measurements. The RAN then sends the location estimate for the UE to the MSC/SGSN, which forwards the location estimate toward the client entity.
    公开号: 申请人:EDGE STEPHEN W FISCHER SVEN BURROUGHS KIRK 申请日:2006年06月19日 分类号:H04W24/00 H04W4/02 H04W8/18 H04W64/00
  15. Embodiments disclosed herein address the need in the art for reduced overhead control with the ability to adjust transmission rates as necessary. In one aspect, a first signal indicates an acknowledgement of a decoded subpacket and whether or not a rate control command is generated, and a second signal conditionally indicates the rate control command when one is generated. In another aspect, a grant may be generated concurrently with the acknowledgement. In yet another aspect, a mobile station monitors the first signal, conditionally monitors the second signal as indicated by the first signal, and may monitor a third signal comprising a grant. In yet another aspect, one or more base stations transmit one or more of the various signals. Various other aspects are also presented. These aspects have the benefit of providing the flexibility of grant-based control while utilizing lower overhead when rate control commands are used, thus increasing system utilization, increasing capacity and throughput.
    公开号: 申请人:QUALCOMM INC 申请日:2007年05月10日 分类号:G08C25/02 H04B7/26 H04L1/00 H04L1/16 H04L1/18 H04W28/22 H04W72/14 H04L12/28
  16. An uplink dedicated control channel reporting structure includes a plurality of different bit size reports, e.g. 1 bit, 3 bit and 4 bit reports, for reporting a wireless terminal's backlog information of uplink traffic request group queues. Smaller bit size reports are transmitted more frequently than larger reports. A 1 bit request report indicates whether or not there are any MAC frames of information to be communicated in a set of two request group queues. A 3 bit request report indicates an amount of backlog information corresponding to a first set of request group queues and a second set of request group queues. A 4 bit request report indicates an amount of backlog information corresponding to a set of request group queues. The 4 bit request report is capable of reporting information on any of a plurality of uplink traffic channel request group queues being maintained by the wireless terminal.
    公开号: 申请人:DAS ARNAB LAROIA RAJIV LI JUNYI QUALCOMM INC 申请日:2012年09月14日 分类号:H04L12/26 H04W72/04 H04W72/12
  17. A 3GPP monitoring architecture framework provides monitoring event configuration, detection, and reporting for machine-type and other mobile data applications using a machine type communication interworking function (MTC-IWF) that communicates monitoring event configuration, detection, and reporting messages through existing interfaces, such as Tsp, T4, and T5 interfaces.
  18. Embodiments include a method and apparatus for processing a downlink shared channel. In one embodiment, a Node-B includes circuitry configured to process control information for a user equipment (UE) and to produce an N bit cyclic redundancy check (CRC) associated with the control information. The Node-B includes circuitry configured to modulo 2 add the N bit CRC with an N bit UE identity to produce an N bit field, wherein the UE identity is any one of a plurality of UE identities associated with the UE. The Node-B includes circuitry configured to transmit a wireless signal of a control channel, wherein the wireless signal comprises the N bit field and the control information.
    公开号: 申请人:BOLOURCHI NADER TERRY STEPHEN E DICK STEPHEN G 申请日:2013年12月23日 分类号:H03M13/00 H03M13/09 H03M13/37 H04H20/00 H04L1/00 H04L5/00 H04W72/04
  19. A data channel is received on a forward link in wireless communication, during operation in a mode that permits transmission of a gated pilot. The gated pilot is transmitted on a reverse link if no other transmissions are being sent on the reverse link. Otherwise, a full pilot is transmitted on the reverse link.
    公开号: 申请人:QUALCOMM INC 申请日:2014年02月07日 分类号:H04L5/00 H04B1/707 H04J11/00 H04L1/00 H04L1/16
  20. A method and apparatus for requesting and allocating bandwidth in a broadband wireless communication system. The inventive method and apparatus includes a combination of techniques that allow a plurality of CPEs to communicate their bandwidth request messages to respective base stations. One technique includes a “polling” method whereby a base station polls CPEs individually or in groups and allocates bandwidth specifically for the purpose of allowing the CPEs to respond with bandwidth requests. The polling of the CPEs by the base station may be in response to a CPE setting a “poll-me bit” or, alternatively, it may be periodic. Another technique comprises “piggybacking” bandwidth requests on bandwidth already allocated to a CPE. In accordance with this technique, currently active CPEs request bandwidth using previously unused portions of uplink bandwidth that is already allocated to the CPE. The CPE is responsible for distributing the allocated uplink bandwidth in a manner that accommodates the services provided by the CPE. By using a combination of bandwidth allocation techniques, the present invention advantageously makes use of the efficiency benefits associated with each technique.