Communication stations and methods for transmitting on a random access channel

摘要

Example communication stations and methods for transmitting on a random access channel (RACH) in wireless networks are disclosed herein. An example method for transmitting on an enhanced RACH by a device such that an initial access burst is received in a single time slot by a wireless network involves determining a timing advance, the timing advance being associated with a serving cell. The example method also involves transmitting, using the determined timing advance, the initial access burst, on the enhanced RACH, that includes at least one of an identifier or user data.

主权项

1. A method for transmitting on an enhanced random-access channel (RACH) by a device such that an initial access burst is received in a single time slot by a wireless network, the method comprising:
receiving a notification from a base station indicating that the enhanced RACH is configured for initial access transmissions, the notification including parameters defining the enhanced RACH including an identification of time-slots of frames that comprise the enhanced RACH, the initial access burst has a network destination, and the enhanced RACH is a secondary RACH; determining a timing advance, the timing advance being associated with a serving cell; using a primary RACH for transmitting an access request message for an assignment of a channel resource for a subsequent transmission of the data, wherein the primary RACH is provided by the base station for transmission of access request messages by devices requesting assignment of a channel resource; determining that an amount of data exceeds an amount that can be transmitted in a single access burst for receipt within a single time slot on the enhanced RACH; determining an initial access burst and one or more subsequent access bursts for transmission on the enhanced RACH, the initial access burst to include at least one of an identifier or user data, and the subsequent access burst to include at least user data; transmitting, using the determined timing advance, the initial access burst, on the enhanced RACH; and subsequently transmitting the one or more subsequent access bursts on the enhanced RACH based on the timing advance.