Packet Duplication Control
Wireless communications are described. A central unit control plane (CU-CP) node of a base station may activate and/or deactivate packet duplication based on status information from self-monitoring, from a distributed unit (DU), from a wireless device, and/or from a central unit user plane (CU-UP) node. The CU-UP node and/or the DU may activate and/or deactivate packet duplication based on status information from self-monitoring, from each other, from the wireless device, and/or from the CU-CP node. The CU-UP node and/or the DU, after activating and/or deactivating packet duplication, may report the activation and/or deactivation to the CU-CP node.
1 . A method comprising:
receiving, by a central unit user plane (CU-UP) node from a central unit control plane (CU-CP) node, a message comprising:
a first field indicating configuration of packet duplication, and
a second field indicating an initial state of packet duplication; and
activating or deactivating, by the CU-UP node based on the message, packet duplication of at least one packet.
2 . The method of claim 1 , wherein the message further comprises a bearer configuration request for a wireless device.
3 . The method of claim 1 , wherein the message further comprises logical channel information, for a bearer, comprising:
a first logical channel identifier of a first logical channel for the at least one packet, and
a second logical channel identifier of a second logical channel for at least one duplicated version of the at least one packet.
4 . The method of claim 1 , further comprising:
after receiving the message, sending, by the CU-UP node to the CU-CP node, at least one second message comprising uplink tunnel information, for a bearer, comprising:
a first uplink tunnel endpoint identifier for a first tunnel for at least one uplink packet, and
a second uplink tunnel endpoint identifier for a second tunnel for at least one duplicated uplink packet.
5 . The method of claim 1 , wherein the configuration of packet duplication comprises configuration of packet data convergence protocol (PDCP) packet duplication.
6 . The method of claim 1 , wherein the initial state is one of activated or deactivated.
7 . The method of claim 1 , wherein the configuration of packet duplication is for a bearer associated with a wireless device.
8 . The method of claim 1 , further comprising:
sending, by the CU-UP node, via at least one distributed unit (DU) node, to a wireless device, and based on the message, the at least one packet.
9 . A central unit user plane (CU-UP) node comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, configure the CU-UP node to:
receive, from a central unit control plane (CU-CP) node, a message comprising:
a first field indicating configuration of packet duplication, and
a second field indicating an initial state of packet duplication; and
activate or deactivate, based on the message, packet duplication of at least one packet.
10 . The CU-UP of claim 9 , wherein the message further comprises a bearer configuration request for a wireless device.
11 . The CU-UP of claim 9 , wherein the message further comprises logical channel information, for a bearer, comprising:
a first logical channel identifier of a first logical channel for the at least one packet, and
a second logical channel identifier of a second logical channel for at least one duplicated version of the at least one packet.
12 . The CU-UP of claim 9 , wherein the instructions, when executed by the one or more processors, further configure the CU-UP node to:
after receiving the message, send, to the CU-CP node, at least one second message comprising uplink tunnel information, for a bearer, comprising:
a first uplink tunnel endpoint identifier for a first tunnel for at least one uplink packet, and
a second uplink tunnel endpoint identifier for a second tunnel for at least one duplicated uplink packet.
13 . The CU-UP of claim 9 , wherein the configuration of packet duplication comprises configuration of packet data convergence protocol (PDCP) packet duplication.
14 . The CU-UP of claim 9 , wherein the initial state is one of activated or deactivated.
15 . The CU-UP of claim 9 , wherein the configuration of packet duplication is for a bearer associated with a wireless device.
16 . The CU-UP of claim 9 , further comprising:
sending, by the CU-UP node, via at least one distributed unit (DU) node, to a wireless device, and based on the message, the at least one packet.
17 . A non-transitory computer-readable medium storing instructions that, when executed, cause:
receiving, by a central unit user plane (CU-UP) node from a central unit control plane (CU-CP) node, a message comprising:
a first field indicating configuration of packet duplication, and
a second field indicating an initial state of packet duplication; and
activating or deactivating, by the CU-UP node based on the message, packet duplication of at least one packet.
18 . The non-transitory computer-readable medium of claim 17 , wherein the message further comprises a bearer configuration request for a wireless device.
19 . The non-transitory computer-readable medium of claim 17 , wherein the message further comprises logical channel information, for a bearer, comprising:
a first logical channel identifier of a first logical channel for the at least one packet, and
a second logical channel identifier of a second logical channel for at least one duplicated version of the at least one packet.
20 . The non-transitory computer-readable medium of claim 17 , wherein the instructions, when executed, further cause:
after receiving the message, sending, by the CU-UP node to the CU-CP node, at least one second message comprising uplink tunnel information, for a bearer, comprising:
a first uplink tunnel endpoint identifier for a first tunnel for at least one uplink packet, and
a second uplink tunnel endpoint identifier for a second tunnel for at least one duplicated uplink packet.
21 . The non-transitory computer-readable medium of claim 17 , wherein the configuration of packet duplication comprises configuration of packet data convergence protocol (PDCP) packet duplication.
22 . The non-transitory computer-readable medium of claim 17 , wherein the initial state is one of activated or deactivated.
23 . The non-transitory computer-readable medium of claim 17 , wherein the configuration of packet duplication is for a bearer associated with a wireless device.
24 . The non-transitory computer-readable medium of claim 17 , wherein the instructions, when executed, further cause:
sending, by the CU-UP node, via at least one distributed unit (DU) node, to a wireless device, and based on the message, the at least one packet.