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US 12,628,036 B2Granted
Data transmission method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorWenjie Peng
Life of this patent
Estimating the term…
Abstract
Methods and apparatus are provided for data transmission. A remote device determines a sidelink multicast identifier identifying multicast between the remote device and a plurality of relay devices and sends uplink data to the plurality of relay devices in a multicast manner based on the sidelink multicast identifier. The uplink data is data sent by the remote device to a radio access network device. The remote device determines the sidelink multicast identifier, and sends the sidelink multicast identifier to the relay device to transmit the uplink data to the radio access network device based on multicast communication to improve uplink data transmission efficiency.
Claims16
A data transmission method, comprising:
- obtaining, by a remote device, first indication information indicating a splitting proportion of a data volume of a packet data convergence protocol (PDCP) entity;
- and
- calculating, by the remote device, a buffer status (BS) based on the splitting proportion indicated by the first indication information;
- wherein:
- the splitting proportion comprises a data proportion of a data volume of the PDCP entity and that is allocated to at least one of a first link or a data proportion of a data volume that is of the PDCP entity and that is allocated to a second link, the first link for carrying uplink data transmitted by the remote device to a radio access network device, and the second link for carrying uplink data transmitted by the remote device to the radio access network device through a plurality of relay devices;
- the calculating a BS based on the splitting proportion comprises calculating a BS in at least one of a first buffer status report (BSR) based on the splitting proportion or calculating a BS in a second BSR based on the splitting proportion, wherein the first BSR provides for requesting to schedule a Uu uplink resource, and the second BSR provides for requesting to schedule a sidelink resource;
- and
- sending, by the remote device, at least one of the first BSR or the second BSR to the radio access network device.
5 more elements
An apparatus comprising:
- at least one processor, and a memory coupled to the at least one processor and storing instructions for execution by the at least one processor that, when executed, the instructions cause the apparatus to perform operations comprising:
- obtaining first indication information indicating a splitting proportion of a data volume of a packet data convergence protocol (PDCP) entity;
- and
- calculating a buffer status (BS) based on the splitting proportion indicated by the first indication information;
- wherein:
- the splitting proportion comprises a data proportion of a data volume of the PDCP entity and that is allocated to at least one of a first link or a data proportion of a data volume that is of the PDCP entity and that is allocated to a second link, the first link for carrying uplink data transmitted by a remote device to a radio access network device, and the second link for carrying uplink data transmitted by the remote device to the radio access network device through a plurality of relay devices;
- the calculating a BS based on the splitting proportion comprises calculating a BS in at least one of a first buffer status report (BSR) based on the splitting proportion or calculating a BS in a second BSR based on the splitting proportion, wherein the first BSR provides for requesting to schedule a Uu uplink resource, and the second BSR is for requesting to schedule a sidelink resource;
- and
- sending at least one of the first BSR or the second BSR to the radio access network device.
6 more elements
An apparatus comprising:
- at least one processor;
- and
- a memory storing instructions for execution by the at least one processor that, when executed, the instructions cause the apparatus to perform operations comprising:
- sending a first indication message to a remote device, the first indication message indicating a splitting proportion of a data volume of a packet data convergence protocol (PDCP) entity, wherein the splitting proportion comprises a data proportion of a data volume of the PDCP entity that is allocated to a first link and a data proportion of a data volume of the PDCP entity that is allocated to a second link, the first link providing for receipt by a radio access network device of uplink data transmitted by the remote device, and the second link providing for receipt by the radio access network device of the uplink data transmitted by the remote device by using a plurality of relay devices;
- and
- receiving a first buffer status report (BSR) and a second BSR sent by the remote device, the first BSR providing for requesting to schedule a Uu uplink resource, and the second BSR providing for requesting to schedule a sidelink resource.
3 more elements
Dependencies are inferred from the claim text.