Sierra Wireless, Inc.

Semtech Corporation

Recep Serkan Dost

Gustav Gerald Vos

Steven John Bennett

Kevin Walton

Methods and apparatuses related to a two-step RACH procedure are provided. Channel conditions can be estimated based on a UE PRACH transmission rather than the subsequent PUSCH transmission in the first part of the two-step RACH. A variable length gap can be provided between the PRACH preamble transmission and the PUSCH transmission. Other solutions are also provided.

Method and apparatus for supporting two-step random access channel usage in a wireless communication system

A method and apparatus for supporting multi transport block grant (MTBG) data transmission in a wireless communication system, such as an LTE system. The method includes increasing the number of hybrid automatic repeat request (HARQ) processes in a HARQ cycle to greater than 8, where the HARQ processes are divided into two or more HARQ process groups. The method further includes specifying a delay indicative of time between the MTBG and commence of the data transmission and another delay indicative of time between the data transmission and acknowledgement (ACK).

Methods and apparatuses for supporting multi transport block grant data transmission

The present invention provides a method for managing communications of a wireless device in a wireless communication system based on network traffic level, and a wireless device comprising a control system configured to evaluate a network traffic level. The wireless device may be configured to transmit data, such as delay-tolerant data, based upon the network traffic level, for example transmitting data only under low traffic conditions. Deferring delay-tolerant communications may result in lower peak traffic conditions in the network. Evaluating the network traffic level may comprise measuring chip energy over total energy (Ec/Io), monitoring data on shared control channels such as HS-SCCH of a HSDPA system, inferring power allocated to channels by a dynamic power allocation scheme, or other methods.

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Richmond, CA, United States of America

Recep Serkan Dost