Control element for activation packet duplication of a data bearer
A wireless device receives configuration parameters indicating data bearers each identified by a data bearer identifier. The data bearers comprise: first data bearer(s) configured with duplication; and second data bearer(s) that are not configured with duplication. A received control element comprises duplication activation bits comprising an activation bit for a first data bearer of the first data bearer(s). A first position of the activation bit in the control element identifies a second position of a first data bearer identifier in an ordered list of data bearer identifiers of the first data bearer(s) configured with the duplication. The ordered list of data bearer identifiers excludes the second data bearer(s). In response to the duplication being activated for the first data bearer: a first packet via a first cell; and a duplicate of the first packet is transmitted via a second cell different from the first cell.
1. A method of a wireless device, comprising:
receiving configuration parameters for data bearers, each data bearer being identified by a data bearer identifier, wherein the data bearers comprise:
one or more first data bearers configured with packet data convergence protocol (PDCP) duplications, and
one or more second data bearers that are not configured with the PDCP duplication;
receiving a media access control (MAC) control element comprising duplication activation bits for the one or more first data bearers, the duplication activation bits having a fixed size of one octet,
wherein an i-th duplication activation bit in the duplication activation bits indicates whether a PDCP duplication for a data bearer of an i-th data bearer identifier in an ascending ordered list of data bearer identifiers is activated, and
wherein the ascending ordered list of the data bearer identifiers includes data bearer identifiers of the one or more first data bearers which is ordered in an ascending order and excludes data bearer identifiers of the one or more second data bearers; and
transmitting in response to the PDCP duplication being activated:
a first packet, and
a duplicated packet of the first packet.
2. The method of claim 1 ,
wherein a first buffer associated with a first logical channel comprises the first packet, and
wherein a second buffer associated with a second logical channel comprises the duplicated packet of the first packet.
3. The method of claim 2 , wherein the one or messages indicates that:
a first plurality of cells are first allowed serving cells for transmission of data from the first logical channel, the first plurality of cells comprising a first cell, and
a second plurality of cells are second allowed serving cells for transmission of data from the second logical channel, the second plurality of cells comprising a second cell.
4. The method of claim 2 , wherein the one or messages indicates that:
a first cell is a first allowed serving cell for transmission of data from the first logical channel, and
a second cell is a second allowed serving cell for transmission of data from the second logical channel.
5. The method of claim 4 ,
wherein the first packet corresponds to a first radio link control (RLC) entity and the first logical channel, and
wherein the duplicated packet of the first packet corresponds to a second RLC entity and the second logical channel.
6. The method of claim 1 ,
wherein the first packet corresponds to a first radio link control (RLC) entity and a first logical channel, and
wherein the duplicated packet of the first packet corresponds to a second RLC entity and a second logical channel.
7. The method of claim 1 , further comprising:
receiving a first uplink grant for transmission of the first packet via a first cell; and
receiving a second uplink grant for transmission of the duplicated of the first packet via a second cell different from the first cell.
8. The method of claim 1 , wherein a data bearer in the data bearers is a data radio bearer.
9. The method of claim 1 , further comprising:
receiving a second MAC control element indicating that the PDCP duplication is deactivated for a first data bearer;
receiving an uplink grant for a second cell; and
transmitting a packet associated with the first data bearer based on the uplink grant.
10. The method of claim 9 , further comprising:
receiving a first uplink grant for transmission of the first packet via a first cell; and
receiving a second uplink grant for transmission of the duplicated packet of the first packet via the second cell.
11. A wireless device, comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors of the wireless device, cause the wireless device to:
receive configuration parameters for data bearers, each data bearer being identified by a data bearer identifier, wherein the data bearers comprise:
one or more first data bearers configured with packet data convergence protocol (PDCP) duplication, and
one or more second data bearers that are not configured with the PDCP duplication,
receive a media access control (MAC) control element comprising duplication activation bits for the one or more first data bearers, the duplication activation bits having a fixed size of one octet,
wherein an i-th duplication activation bit in the duplication activation bits indicates whether a PDCP duplication for a data bearer of an i-th data bearer identifier in an ascending ordered list of data bearer identifiers is activated, and
wherein the ascending ordered list of the data bearer identifiers includes data bearer identifiers of the one or more first data bearers which is ordered in an ascending order and excludes data bearer identifiers of the one or more second data bearers, and
transmit in response to the PDCP duplication being activated:
a first packet, and
a duplicated packet of the first packet.
12. A system, comprising:
a base station comprising:
one or more first processors, and
first memory storing first instructions that, when executed by the one or more first processors of the base station, cause the base station to:
transmit configuration parameters for data bearers, each data bearer being identified by a data bearer identifier, wherein the data bearers comprise:
one or more first data bearers configured with packet data convergence protocol (PDCP) duplication, and
one or more second data bearers that are not configured with the PDCP duplication,
transmit a media access control (MAC) control element comprising duplication activation bits for the one or more first data bearers, the duplication activation bits having a fixed size of one octet,
wherein an i-th duplication activation bit in the duplication activation bits indicates whether a PDCP duplication for a data bearer of an i-th data bearer identifier in an ascending ordered list of data bearer identifiers is activated, and
wherein the ascending ordered list of the data bearer identifiers includes data bearer identifiers of the one or more first data bearers which is ordered in an ascending order and excludes data bearer identifiers of the one or more second data bearers; and
a wireless device comprising:
one or more second processors, and
second memory storing second instructions that, when executed by the one or more second processors of the wireless device, cause the base station to:
receive the configuration parameters,
receive the MAC control element, and
transmit in response to the PDCP duplication being activated for the first data bearer:
a first packet, and
a duplicated packet of the first packet.