Random access for wireless communication network
There is disclosed a method of operating a wireless device for a wireless communication network. The method includes transmitting a random access preamble from a set of preambles, the set of preambles being from one of a first set of first preambles and a second set of second preambles, wherein the random access preamble and/or the set of the random access preamble is based on a reception characteristic of reference signaling received by the wireless device. The disclosure also pertains to related devices and methods.
1 . A method of operating a wireless device for a wireless communication network, the method comprising:
transmitting a random access preamble from a set of preambles, the set of preambles being from one of a first set of first preambles and a second set of second preambles, the set of the random access preambles is selected based on a reception characteristic of a reference signaling beam received by the wireless device, the reception characteristic indicating whether the reference signaling beam is directed to a cell edge.
2 . The method according to claim 1 , wherein the first set of preambles is associated to a first set of time/frequency resources, and the second set of preambles is associated to a second set of time/frequency resources.
3 . The method of claim 1 , wherein the first set of preambles has a first preamble length, and the second set of preambles has a second preamble length.
4 . The method of claim 1 , wherein the first set of preambles is associated to a first waveform parameter range, and the second set of preambles is associated to a second waveform parameter range.
5 . The method of claim 1 , wherein the reference signaling beam includes synchronisation signaling.
6 . The method of claim 1 , wherein the reception characteristic corresponds to a signaling characteristic, the signaling characteristic being one or more from a group consisting of: a signal strength, signal quality, pathloss and delay characteristic.
7 . A wireless device for a wireless communication network, the wireless device configured to:
transmit a random access preamble from a set of preambles, the set of preambles being from one of a first set of first preambles and a second set of second preambles, the set of the random access preambles is selected based on a reception characteristic of a reference signaling beam received by the wireless device, the reception characteristic indicating whether the reference signaling beam is directed to a cell edge.
8 . The wireless device according to claim 7 , wherein the first set of preambles is associated to a first set of time/frequency resources, and the second set of preambles is associated to a second set of time/frequency resources.
9 . The wireless device according to claim 7 , wherein the first set of preambles has a first preamble length, and the second set of preambles has a second preamble length.
10 . The wireless device according to claim 7 , wherein the first set of preambles is associated to a first waveform parameter range, and the second set of preambles is associated to a second waveform parameter range.
11 . A method of operating a network node for a wireless communication network, the method comprising:
receiving a random access preamble, from a set of preambles, the set of preambles being from one of a first set of first preambles and a second set of second preambles, the set of the random access preambles is selected based on a reception characteristic of a reference signaling beam received by a wireless device, the reception characteristic indicating whether the reference signaling beam is directed to a cell edge.
12 . The method according to claim 11 , wherein the first set of preambles is associated to a first set of time/frequency resources, and the second set of preambles is associated to a second set of time/frequency resources.
13 . The method according to claim 11 , wherein the first set of preambles has a first preamble length, and the second set of preambles has a second preamble length.
14 . The method according to claim 11 , wherein the first set of preambles is associated to a first waveform parameter range, and the second set of preambles is associated to a second waveform parameter range.
15 . The method according to claim 11 , wherein the reference signaling beam includes synchronisation signaling.
16 . The method according to claim 11 , wherein the reception characteristic corresponds to a signaling characteristic, the signaling characteristic being one or more from a group consisting of: a signal strength, signal quality, pathloss and delay characteristic.
17 . A network node for a wireless communication network, the network node configured to:
receive a random access preamble, from a set of preambles, the set of preambles being from one of a first set of first preambles and a second set of second preambles, the set of the random access preambles is selected based on a reception characteristic of a reference signaling beam received by a wireless device, the reception characteristic indicating whether the reference signaling beam is directed to a cell edge.
18 . A non-transitory computer storage medium storing a computer program comprising instructions causing processing circuitry to one or both control and perform a method, the method comprising:
transmitting a random access preamble from a set of preambles, the set of preambles being from one of a first set of first preambles and a second set of second preambles, the set of the random access preambles is selected based on a reception characteristic of a reference signaling beam received by a wireless device, the reception characteristic indicating whether the reference signaling beam is directed to a cell edge.