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发明公开
CN110546981A 在无线网络中使用随机接入的无线通信 有权

在无线网络中使用随机接入的无线通信
摘要：
提供了一种有效的随机接入过程，用于减少随机接入系统中连接的控制开销。基站发送一个或多个同步信号(SS)块。UE检测并确定优选的SS块。UE在RACH机会中发送多个随机接入信号(例如，PRACH信号)。每个PRACH信号在不同的波束上发送，并包括RACH前导码。基站接收一个或多个PRACH信号。RACH机会和可选地RACH前导码识别优选的SS块。基站确定优选的PRACH信号。基站使用优选的SS块的发送波束将RAR发送给UE。RAR指示优选的PRACH信号和上行链路资源分配。UE接收RAR并使用优选的PRACH信号的发送波束和上行链路资源分配来发送消息。
摘要（英）：

An efficient random access procedure is provided for reduced control overhead of connections in random access systems. A base station transmits one or more synchronization signal (SS) blocks. A UE detects and determines a preferred SS block. The UE transmits multiple random access signals (e.g., PRACH signals) in a RACH occasion. Each PRACH signal is transmitted on a different beam and includes aRACH preamble. The base station receives one or more of the PRACH signals. The RACH occasion and optionally the RACH preamble identify the preferred SS block. The base station determines a preferred PRACH signal. The base station sends a RAR to the UE using the transmit beam of the preferred SS block. The RAR indicates the preferred PRACH signal and an uplink resource allocation. The UE receives the RAR and transmits a message using the transmit beam of the preferred PRACH signal and the uplink resource allocation.

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