摘要:
Embodiments disclosed herein relate to preamble configuration in wireless communication systems (e.g., UHDR-DO type systems). Disclosed embodiments disclose receiving a plurality of information bits, generating a plurality of preamble codewords based on a determined a set of monitored MAC_IDs, correlating the information bits with each of the plurality of preamble codewords, determining if a maximum correlation value exceeds a threshold, and transmitting at least one of the preamble codewords if the threshold is exceeded.
摘要:
Aspects relate to a flexible interleaving scheme that provides frequency diversity to randomizes interference Frequency diversity groups can be utilized, wherein control channel elements (CCEs) gain greater frequency diversity for a given number of mini-CCEs (e.g., subset of CCEs). A frequency diversity group index is permuted according to a bit reversed scheme to facilitate control channel elements with a small number of mini-CCEs to also gain sufficient frequency diversity.
摘要:
A method of wireless communication includes configuring a plurality of remote radio heads (RRHs) to prevent position location reference signal (PRS) transmissions on the same subframes where the macro eNodeB transmits PRS. The configured RRHs each have a same physical cell identity (PCI) as the macro eNodeB. The RRHs communicating in accordance with the configuration.
摘要:
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.
摘要:
Methods and apparatus in a wireless communication system are described for receiving and processing transmit power control commands, where, for example, the response to the transmit power control commands is conditionally decoupled from at least one of a transmit bandwidth parameter, a transport format parameter and a power stepsize limit. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.
摘要:
Techniques for computing and reporting channel quality indication (CQI) are described. In an aspect, a plurality of CQI computation methods may be supported, and each CQI computation method may indicate how CQI should be computed. One CQI computation method may be selected for use. CQI may then be computed and reported in accordance with the selected CQI computation method. In an exemplary design, a user equipment (UE) may obtain a selected method for computing CQI, which may be chosen based on the UE capability and/or other factors. The selected method may specify (i) CQI computation for a specific codeword among a plurality of codewords or (ii) CQI computation by averaging signal quality across a plurality of layers used for transmission. The UE may compute CQI in accordance with the selected method, send the CQI to a base station, and receive data sent by the base station based on the CQI.
摘要:
Embodiments disclosed herein relate to preamble configuration in wireless communication systems (e.g., UHDR-DO type systems). Disclosed embodiments disclose receiving a plurality of information bits, generating a plurality of preamble codewords based on a determined a set of monitored MAC_IDs, correlating the information bits with each of the plurality of preamble codewords, determining if a maximum correlation value exceeds a threshold, and transmitting at least one of the preamble codewords if the threshold is exceeded.
摘要:
In a wireless network (100) with HSDPA-enabled user equipment devices (130), the base transceiver station (120) transmits to each HSDPA-enabled UE information regarding allocation of HSDPA codes and associated modulation techniques for other HSDPA-enabled UEs. Using this additional control information, each UE configures decision feedback filter of its equalizer to reduce inter-user interference. The additional control information may be transmitted in a packet (300) that includes a CRC portion (310) with the packet's CRC masked by a common ID, which is known to the HSDPA-enabled UEs. To reduce the number of bits needed to transmit the additional control information, the HSDPA codes used with a particular modulation technique are allocated consecutively. For each modulation technique, only the beginning code and the total number of codes need be known to the UEs. The number of codes used with each modulation technique may be allowed to change once in several TTIs.
摘要:
Techniques for transmitting data in a manner to facilitate equalization at a receiver are described. Guard intervals are appended to data blocks such that each data block has a guard interval at the beginning of the data block and a guard interval at the end of the data block. Each guard interval may be discontinuous transmission (DTX), a polyphase sequence, or some other known sequence. Pilot is appended to each set of at least one data block. The data blocks, pilot, and guard intervals may be sent using various slot structures and are processed for transmission. The processing may include mapping the data blocks to at least one physical channel, channelizing the data blocks for each physical channel with a channelization code, combining all physical channels, and scrambling the combined data, pilot, and guard intervals with a scrambling code.
摘要:
Signaling for each multicast/broadcast service is sent in group page messages in PCH slots assigned to the wireless devices and/or PCH slots designated for use for the service. Each group page message contains an identifier for a service. The designated PCH slots for different services may be overlapping to reduce the number of times the wireless devices need to wake up to receive page messages or staggered to reduce collision among the services. The wireless devices may be informed of a group page message being sent on the PCH for a given service by use of paging indicators that are assigned to the wireless devices and/or broadcast indicators that are assigned to the service. The paging indicators may be sent in QPCH slots assigned to the wireless devices and/or QPCH slots designated for use for the service. The BI bits are sent on the designated QPCH slots.