METHODS, ARCHITECTURES, APPARATUSES AND SYSTEMS DIRECTED TO INITIAL ACCESS IN HIGHER FREQUENCIES
Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to initial access in higher frequencies are provided. Among the methods is a method that may be implemented in a wireless transmit/receive unit and that may include any of receiving a first transmission having a frequency component that carries synchronization signal information and that corresponds to one sync-raster value of a plurality of values of a sync raster; determining one or more parameters based on (i) the one sync-raster value being a member of a partition of a plurality of partitions of the sync raster; and (ii) the partition being indicative of a mode of operation; and receiving a second transmission using the one or more parameters, wherein the second transmission comprises control channel information.
1 . A method implemented in a wireless transmit/receive unit (WTRU), the method comprising:
receiving a first transmission having a frequency component that carries synchronization signal information and that corresponds to a sync-raster value of a plurality of values of a sync raster;
determining one or more parameters based on:
(i) the sync-raster value being associated with a partition of a plurality of partitions of the sync raster; and
(ii) the partition being indicative of a mode of operation; and
receiving a second transmission using the one or more parameters, wherein the second transmission comprises control channel information.
2 . The method of claim 1 , comprising:
transmitting an uplink transmission without performing a listen-before-talk operation based on the mode of operation being a first mode of operation.
3 . The method of claim 1 , comprising:
performing a listen-before-talk operation based on the mode of operation being a second mode of operation; and
transmitting an uplink transmission following an outcome of the listen-before-talk operation indicating a channel is available.
4 . The method of claim 1 , comprising:
based on the mode of operation being a second mode of operation,
performing a listen-before-talk operation based on the mode of operation being a second mode of operation; and
transmitting an uplink transmission following an outcome of the listen-before-talk operation indicating a channel is available.
5 . The method of claim 1 , wherein the plurality of partitions is indicative of a respective plurality of modes of operation, and wherein the partition is any one of the plurality of partitions.
6 . The method of claim 1 , wherein the partition is based on a function applied to the plurality of sync-raster values.
7 . The method of claim 1 , wherein each of the plurality of partitions is based on a corresponding function applied to the plurality of sync-raster values.
8 . The method of claim 1 , wherein the partition is based on an initial sync-raster value and a step function applied to the plurality of sync-raster values.
9 . The method of claim 1 , wherein each of the plurality of partitions is based on an initial sync-raster value and a step function applied to the plurality of sync-raster values.
10 . The method of claim 2 , wherein the first mode of operation corresponds to licensed band operation.
11 . The method of claim 3 , wherein the second mode of operation corresponds to unlicensed band operation.
12 . The method of claim 1 , wherein determining one or more parameters comprises:
determining the mode of operation based on:
(i) the sync-raster value being a member of the partition of the plurality of partitions of the sync raster; and
(ii) the partition being indicative of the mode of operation; and
determining the one or more parameters based on the determined mode of operation.
13 . The method of claim 1 , wherein the control channel information comprises physical downlink control channel information.
14 . The method of claim 1 , wherein the frequency component is any of a subcarrier and a subchannel.
15 . The method of claim 1 , comprising transmitting information indicating one or more of the one or more parameters.
16 . The method of claim 15 , wherein the information indicating one or more of the parameters is a report.
17 . The method of claim 1 , wherein the sync raster is associated with frequency positions of a synchronization block.
18 . The method of claim 1 , wherein the one or more parameters comprise any of: one or more resource blocks, a number of resource blocks, one or more symbols, a number of symbols, a frequency offset, and a multiplexing pattern associated with a second transmission.
19 . A wireless transmit/receive unit (WTRU), comprising:
circuitry, including any of a processor, memory, transmitter and receiver, the circuitry configured to:
receive a first transmission having a frequency component that carries synchronization signal information and that corresponds to a sync-raster value of a plurality of values of a sync raster;
determine one or more parameters based on:
(i) the sync-raster value being associated with a partition of a plurality of partitions of the sync raster; and
(ii) the partition being indicative of a mode of operation; and
receive a second transmission using the one or more parameters, wherein the second transmission comprises control channel information.
20 . The WTRU of claim 19 , the circuitry configured to:
transmit an uplink transmission without performing a listen-before-talk operation based on the mode of operation being a first mode of operation.
21 . The WTRU of claim 19 , the circuitry configured to:
perform a listen-before-talk operation based on the mode of operation being a second mode of operation; and
transmit an uplink transmission following an outcome of the listen-before-talk operation indicating a channel is available.
22 . The WTRU of claim 19 , the circuitry configured to:
based on the mode of operation being a second mode of operation,
perform a listen-before-talk operation based on the mode of operation being a second mode of operation; and
transmit an uplink transmission following an outcome of the listen-before-talk operation indicating a channel is available.
23 . The WTRU of claim 19 , wherein the plurality of partitions is indicative of a respective plurality of modes of operation, and wherein the partition is any one of the plurality of partitions.
24 . The WTRU of claim 19 , wherein the partition is based on a function applied to the plurality of sync-raster values.
25 . The WTRU of claim 19 , wherein each of the plurality of partitions is based on a corresponding function applied to the plurality of sync-raster values.
26 . The WTRU of claim 19 , wherein the partition is based on an initial sync-raster value and a step function applied to the plurality of sync-raster values.
27 . The WTRU of claim 19 , wherein each of the plurality of partitions is based on an initial sync-raster value and a step function applied to the plurality of sync-raster values.
28 . The WTRU of claim 20 , wherein the first mode of operation corresponds to licensed band operation.
29 . The WTRU of claim 21 , wherein the second mode of operation corresponds to unlicensed band operation.
30 . The WTRU of claim 19 , wherein the circuitry is configured to:
determining the mode of operation based on:
(i) the sync-raster value being a member of the partition of the plurality of partitions of the sync raster; and
(ii) the partition being indicative of the mode of operation; and
determining the one or more parameters based on the determined mode of operation.
31 . The WTRU of claim 19 , wherein the control channel information comprises physical downlink control channel information.
32 . The WTRU of claim 19 , wherein the frequency component is any of a subcarrier and a subchannel.
33 . The WTRU of claim 19 , the circuitry configured to:
transmit information indicating one or more of the one or more parameters.
34 . The WTRU of claim 33 , wherein the information indicating one or more of the parameters is a report.
35 . The WTRU of claim 19 , wherein the sync raster is associated with frequency positions of a synchronization block.
36 . The WTRU of claim 19 , wherein the one or more parameters comprise any of: one or more resource blocks, a number of resource blocks, one or more symbols, a number of symbols, a frequency offset, and a multiplexing pattern associated with a second transmission.