US 11,778,643 B2Granted

Control element for activation packet duplication of a data bearer

AssigneeSamsung Electronics Co., Ltd.

InventorsAlireza Babaei, Esmael Hejazi Dinan, Kyungmin Park, Hyoungsuk Jeon

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Abstract

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.

Claims14

Dependent claims

A method of a wireless device, comprising:

receiving at least one radio resource control (RRC) message comprising:
a parameter indicating that duplication is configured for one or more data radio bearers (DRBs) including a first DRB, the first DRB corresponding to a first logical channel and a second logical channel,
first mapping restrictions of the first logical channel to at least one first cell, and
second mapping restrictions of the second logical channel to at least one second cell;
receiving a media access control (MAC) control element comprising duplication activation bits for the one or more DRBs, 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 duplication for a DRB of an i-th DRB identifier in an ordered list of DRB identifiers is activated, and wherein the ordered list of the DRB identifiers is an ascending ordered list of DRB identifiers of the one or more DRBs;
in case that a duplication activation bit corresponding to the first DRB is set to a first value indicating that a duplication of the first DRB is activated, transmitting a first packet and a duplicated packet of the first packet;
and
in case that the duplication activation bit corresponding to the first DRB is set to a second value indicating that the duplication of the first DRB is deactivated, lifting the first mapping restrictions and the second mapping restrictions.

5 more elements

A wireless device, comprising:

a communication interface;
and
a processor coupled with the communication interface and configured to:
receive at least one radio resource control (RRC) message comprising:
a parameter indicating that duplication is configured for one or more data radio bearers (DRBs) including a first DRB, the first DRB corresponding to a first logical channel and a second logical channel,
first mapping restrictions of the first logical channel to at least one first cell, and
second mapping restrictions of the second logical channel to at least one second cell,
receive a media access control (MAC) control element comprising duplication activation bits for the one or more DRBs, 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 duplication for a DRB of an i-th DRB identifier in an ordered list of DRB identifiers is activated, and wherein the ordered list of the DRB identifiers is an ascending ordered list of DRB identifiers of the one or more DRBs,
in case that a duplication activation bit corresponding to the first DRB is set to a first value indicating that a duplication of the first DRB is activated, transmit a first packet and a duplicated packet of the first packet, and
in case that the duplication activation bit corresponding to the first DRB is set to a second value indicating that the duplication of the first DRB is deactivated, lift the first mapping restrictions and the second mapping restrictions.

7 more elements

A method of a base station, comprising:

transmitting, to a wireless device, at least one radio resource control (RRC) message comprising:
a parameter indicating that duplication is configured for one or more data radio bearers (DRBs) including a first DRB, the first DRB corresponding to a first logical channel and a second logical channel,
first mapping restrictions of the first logical channel to at least one first cell, and
second mapping restrictions of the second logical channel to at least one second cell;
transmitting a medium access control (MAC) control element comprising duplication activation bits for the one or more DRBs, 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 duplication for a DRB of an i-th DRB identifier in an ordered list of DRB identifiers is activated, wherein the ordered list of the DRB identifiers is an ascending ordered list of the DRB identifiers of the one or more DRBs;
and
in case that a duplication activation bit corresponding to the first DRB is set to a first value indicating that a duplication of the first DRB is activated, receiving a first packet and a duplicated packet of the first packet,
wherein, in case that the duplication activation bit corresponding to the first DRB is set to a second value indicating that the duplication of the first DRB is deactivated, the first mapping restrictions and the second mapping restrictions are lifted in the wireless device.

5 more elements

A base station, the base station comprising:

a communication interface;
and
a processor coupled with the communication interface and configured to:
transmit, to a wireless device, at least one radio resource control (RRC) message comprising:
a parameter indicating that duplication is configured for one or more data radio bearers (DRBs) including a first DRB, the first DRB corresponding to a first logical channel and a second logical channel,
first mapping restrictions of the first logical channel to at least one first cell, and
second mapping restrictions of the second logical channel to at least one second cell,
transmit a medium access control (MAC) control element comprising duplication activation bits for the one or more DRBs, 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 duplication for a DRB of an i-th DRB identifier in an ordered list of DRB identifiers is activated, wherein the ordered list of the DRB identifiers is an ascending ordered list of the DRB identifiers of the one or more DRBs, and
in case that a duplication activation bit corresponding to the first DRB is set to a first value indicating that a duplication of the first DRB is activated, receive a first packet and a duplicated packet of the first packet,
wherein, in case that the duplication activation bit corresponding to the first DRB is set to a second value indicating that the duplication of the first DRB is deactivated, the first mapping restrictions and the second mapping restrictions are lifted in the wireless device.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/733,571Filed 29 Apr 2022 · continuation
Priority: 15 Jun 2017
Published: US 2022/0264556 A118 Aug 2022
Granted: 3 Oct 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04W 72/51
Allocation or scheduling criteria for wireless resources: based on terminal or device properties
H04L 1/1819
Hybrid protocols; Hybrid automatic repeat request [HARQ]: with retransmission of additional or different redundancy
H04L 5/0032
Arrangements for allocating sub-channels of the transmission path: distributed allocation, i.e. involving a plurality of allocating devices, each…
H04L 5/0053
Arrangements for allocating sub-channels of the transmission path: allocation of signalling, i.e. of overhead other than pilot signals

Family

Application62/520,251Us provisional application · filed 15 Jun 2017
Application15/983,838Parent of this continuation · filed 18 May 2018
Application16/855,507Parent of this continuation · filed 22 Apr 2020
US 10,638,487 B2Parent of this continuation · filed 28 Apr 2020
US 2022/0264556 A1Pre-grant publication · published 18 Aug 2022
US 11,324,004 B2Parent of this continuation
US 2018/0368132 A1Published application
US 2020/0252926 A1Published application
US 11,778,643 B2This patent

From the US filing history. Foreign family members aren’t listed.