摘要:
Methods and apparatus for setting the connection identifier (CID) mask length of a Hybrid Automatic Repeat-Request (HARQ)-MAP or a SUB-MAP pointer information element (IE) in a compressed downlink map (DL-MAP) of an orthogonal frequency-division multiple access (OFDMA) frame are provided in an effort to reduce the number of false indications in the CID mask, while also striving, as a secondary concern, to reduce the CID mask length. In this manner, an individual mobile station (MS) may not waste processing, battery power, or time interpreting a HARQ-MAP message or a sub downlink/uplink map (SUB-DL-UL-MAP) message that was not intended for this particular MS. For some embodiments where the CID mask length is set to be small, the control overhead (i.e., the size of the HARQ-MAP or the SUB-MAP pointer IE) may be decreased, and more of the OFDMA frame may be available for data traffic.
摘要:
Aspects of the present disclosure allow a mobile station (MS) to maintain data activity while performing handover operations within the WiMAX network and listening to a CDMA 1x paging cycle. According to aspects, the MS maintains timing of a base station (BS) in a first radio access technology (RAT) and a BS in a second RAT. The MS may determine an expected timing of a paging cycle in the second RAT and send a sleep request to the BS in the first RAT such that the sleep interval coincides with the timing of the paging cycle in the second RAT. The MS may perform operations to ensure a sleep interval, after performing handover operations, coincides with the timing of the paging cycle in the second RAT.
摘要:
A method of wireless communication includes communicating information with a neighbor Node B in a subframe. The information is associated with uplink timing. The method includes communicating with a serving Node B in the subframe.
摘要:
Certain aspects of the present disclosure propose techniques for utilizing synchronization shift (SS) bits in Time Division Synchronous Code Division Multiple Access (TD-SCDMA) based uplink communications. The SS bits can be used for various purposes different from indicating timing of transmissions from a Node B to a user equipment.
摘要:
Certain aspects of the present disclosure propose techniques for processing received downlink synchronization shift commands for timing adjustments of uplink transmissions in Time Division Synchronous Code Division Multiple Access (TD-SCDMA) wireless systems.
摘要:
Certain aspects of the present disclosure propose techniques for scheduling paging intervals in a multimode terminal (MMT) whenever a paging interval conflict between two different networks occurs. Certain aspects provide a method for communicating, by an MMT, with first and second networks via first and second radio access technologies (RATs), such as Time Division Synchronous Code Division Multiple Access (TD-SCDMA) and Code Division Multiple Access (CDMA) 1×RTT (Radio Transmission Technology), Evolution-Data Optimized (EVDO), or Wideband CDMA (WCDMA). The method generally includes determining that an overlap will occur between a first paging interval of the first network and a second paging interval of the second network, selecting between the first and second paging intervals based on at least one parameter associated with the first and second paging intervals, and detecting a message associated with paging based on the selected paging interval.
摘要:
Avoiding collisions when executing Handover or initial access (Random access requests) due to the use of the same synchronisation code, SYNC-UL code, at the same Uplink pilot channel, UpPCH, in the same Uplink pilot Time Slot, Up-PTS, in a TD-SCDMA system. The method may comprise receiving a signal that identifies N subframes of a subframe cycle including M subframes, wherein an uplink pilot channel in each of said N identified subframes is available for initial access and a hard handover, wherein N and M are positive integers, and wherein N is less than M. Further, the method may comprise receiving a signal that identifies G synchronization codes among H available synchronization codes, wherein each of said G identified synchronization codes is available for initial access only, wherein G and H are positive integers, and wherein G is less than H.
摘要:
A method and apparatus for facilitating handover in a TD-SCDMA system is provided. The method may comprise transmitting data to a serving Node B using a first set of assigned resources, and contemporaneously transmitting the data to at least one neighbor Node B using a second set of assigned resources.
摘要:
Methods and apparatus are provided for performing measurement of reference signals in the proper subframes of a first radio access technology (RAT) while operating in a second RAT. For certain aspects, the first and second RATs may be Time Division Duplex Long Term Evolution (TDD-LTE) and Time Division—Synchronous Code Division Multiple Access (TD-SCDMA), respectively. By knowing the correct TDD-LTE downlink and uplink subframe configurations, a user equipment device (UE) may temporarily leave the TD-SCDMA network during an idle interval and perform expedited and accurate measurement of TDD-LTE reference signals without errors from trying to measure reference signals during uplink subframes.
摘要:
An apparatus and method enable mobile user equipment to return to a first cell after attempting a baton handover to a second cell. In one aspect of the disclosure, a method of wireless communication in a cellular network including a source cell and a target cell is disclosed. Here, the method includes switching transmission of an uplink from the source cell to the target cell while maintaining a downlink with the source cell, determining to return the transmission of the uplink to the source cell, and returning the transmission of the uplink from the target cell to the source cell. In some aspects, the method may further include switching reception of a downlink from the source cell to the target cell, determining to return the reception of the downlink to the source cell, and returning the reception of the downlink from the target cell to the source cell.