Random access configurations
AssigneesZte Wistron Telecom AB, Zte (Tx) Inc.
InventorPatrick Svedman
Life of this patent
Estimating the term…
Abstract
A system and method for random access configurations are disclosed herein. In one embodiment, a method performed by a communication device includes: defining, based on a parameter for communication with a communication node, at least one of: a plurality of random access channel (RACH) groups, and a relationship between individual RACH groups of the plurality of RACH groups and measurement results; obtaining the measurement results from a plurality of signals; determining a matching RACH group from the plurality of RACH groups based on the measurement results; and sending a message using at least one resource of the matching RACH group.
Claims30
A method performed by a communication device, the method comprising:
- determining, based on at least one parameter for communication with a communication node:
- a plurality of random access channel (RACH) groups, and
- a relationship between an individual RACH group of the plurality of RACH groups and a plurality of signals, wherein each individual RACH group of the plurality of RACH groups comprises at least one RACH resource and at least one RACH preamble, and the at least one parameter indicates a number of preambles in each individual RACH group and a number of RACH groups per RACH occasion, wherein each RACH occasion corresponds to a time instance in which a RACH preamble may be transmitted and wherein each individual RACH group of the plurality of RACH groups is determined based on a RACH group period;
- obtaining measurement results from the plurality of signals, wherein the plurality of signals comprises at least one synchronization signal (SS) block;
- determining a matching RACH group from the plurality of RACH groups based on the measurement results;
- sending a message using at least one resource of the matching RACH group to the communication node.
A method performed by a communication node, the method comprising:
- determining at least one parameter for communication with a communication device, wherein the at least one parameter indicates:
- a plurality of random access channel (RACH) groups, and
- a relationship between an individual RACH group of the plurality of RACH groups and a plurality of signals from which measurement results are obtained by the communication device, wherein each individual RACH group of the plurality of RACH groups comprises at least one RACH resource and at least one RACH preamble, and the at least one parameter indicates a number of preambles in each individual RACH group and a number of RACH groups per RACH occasion, wherein each RACH occasion corresponds to a time instance in which a RACH preamble may be transmitted and wherein each individual RACH group of the plurality of RACH groups is determined based on a RACH group period;
- transmitting the plurality of signals to the communication device, wherein the plurality of signals comprises at least one synchronization signal (SS) block;
- receiving a message on at least one resource of a matching RACH group of the plurality of RACH groups from the communication device.
A communication device, comprising:
- at least one processor configured to:
- determine, based on at least one parameter for communication with a communication node:
- a plurality of random access channel (RACH) groups, and
- a relationship between an individual RACH group of the plurality of RACH groups and a plurality of signals, wherein each individual RACH group of the plurality of RACH groups comprises at least one RACH resource and at least one RACH preamble, and the at least one parameter indicates a number of preambles in each individual RACH group and a number of RACH groups per RACH occasion, wherein each RACH occasion corresponds to a time instance in which a RACH preamble may be transmitted and wherein each individual RACH group of the plurality of RACH groups is determined based on a RACH group period;
- obtain measurement results from the plurality of signals, wherein the plurality of signals comprises at least one synchronization signal (SS) block;
- determine a matching RACH group from the plurality of RACH groups based on the measurement results;
- and
- a transmitter configured to send a message using at least one resource of the matching RACH group to the communication node.
A communication node, comprising:
- at least one processor configured to:
- determine at least one parameter for communication with a communication device, wherein the at least one parameter indicates:
- a plurality of random access channel (RACH) groups, and
- a relationship between an individual RACH group of the plurality of RACH groups and a plurality of signals from which measurement results are obtained by the communication device, wherein each individual RACH group of the plurality of RACH groups comprises at least one RACH resource and at least one RACH preamble, and the at least one parameter indicates a number of preambles in each individual RACH group and a number of RACH groups per RACH occasion wherein each RACH occasion corresponds to a time instance in which a RACH preamble may be transmitted and wherein each individual RACH group of the plurality of RACH groups is determined based on a RACH group period;
- a transmitter configured to transmit the plurality of signals to the communication device, wherein the plurality of signals comprises at least one synchronization signal (SS) block;
- and
- a receiver configured to receive a message on at least one resource of a matching RACH group of the plurality of RACH groups from the communication device.
Dependencies are inferred from the claim text.