Back to results
US 11,109,414 B2Granted
Data transmission method, device and system, and storage medium
AssigneeZte Corporation
InventorsXu Liu, Bo Dai, Qian Dai
Life of this patent
Estimating the term…
Abstract
Disclosed are a data transmission method, apparatus and system. A first paging message carries first indication information related to random access, so that a base station can complete identification of a terminal when the base station receives a preamble sent by the terminal, and downlink data to be transmitted may be carried in a second signaling flow. Meanwhile, second indication information indicating whether the transmission of the downlink data is completed may also be carried so that the terminal enters a radio resource control (RRC) suspension state. Finally, power consumption, a latency and resource overhead of the terminal are effectively reduced.
Claims14
A data transmission method, comprising:
- sending, by a base station, a first paging message carrying first indication information to a terminal, wherein the first indication information is used for indicating that the terminal determines a first signaling flow;
- receiving, by the base station, the first signaling flow sent by the terminal, and identifying the terminal according to the first signaling flow;
- and
- sending, by the base station, a second signaling flow to the terminal, wherein the second signaling flow carries downlink data;
- wherein the first indication information comprises at least one of:
- preamble index indication information;
- or
- physical random access channel (PRACH) resource indication information bearing a preamble;
- wherein sending, by the base station, the first paging message carrying the first indication information to the terminal comprises:
- selecting, by the base station, a preamble and a PRACH resource, and generating the preamble index indication information corresponding to the preamble and the PRACH resource indication information corresponding to the PRACH resource;
- and sending, by the base station, the first paging message carrying the preamble index indication information and the PRACH resource indication information to the terminal;
- and
- wherein receiving, by the base station, the first signaling flow sent by the terminal comprises:
- receiving, by the base station and at a time-frequency position of the PRACH resource, a preamble sent by the terminal and at the time-frequency position of the PRACH resource according to the preamble index indication information and the PRACH resource indication information.
11 more elements
A data transmission method, comprising:
- receiving, by a terminal, a first paging message sent by a base station and carrying first indication information;
- determining and sending, by the terminal, a first signaling flow to the base station according to the first indication information, wherein the first signaling flow is used for indicating that the base station identifies the terminal;
- and
- receiving, by the terminal, a second signaling flow sent by the base station, wherein the second signaling flow carries downlink data;
- wherein the first indication information comprises at least one of:
- preamble index indication information, or
- physical random access channel (PRACH) resource indication information bearing a preamble;
- wherein receiving, by the terminal, the first paging message sent by the base station and carrying the first indication information comprises:
- receiving, by the terminal, the first paging message sent by the base station and carrying the preamble index indication information and the PRACH resource indication information;
- and
- wherein determining and sending, by the terminal, the first signaling flow to the base station according to the first indication information comprises:
- determining, by the terminal, a preamble according to the preamble index indication information, and determining, according to the PRACH resource indication information, a time-frequency position of a PRACH resource at which the preamble is sent and sending, by the terminal, the preamble to the base station at the time-frequency position of the PRACH resource.
9 more elements
A data transmission apparatus, applied to a base station and comprising a processor and a memory for storing executable instructions that when executed by the processor cause the processor to perform the steps in following modules:
- a first sending module, which is configured to send a first paging message carrying first indication information to a terminal, wherein the first indication information is used for indicating that the terminal determines a first signaling flow;
- an identifying module, which is configured to receive the first signaling flow sent by the terminal, and identify the terminal according to the first signaling flow;
- and
- a second sending module, which is configured to send a second signaling flow to the terminal, wherein the second signaling flow carries downlink data;
- wherein the first indication information comprises at least one of:
- preamble index indication information;
- or
- physical random access channel (PRACH) resource indication information bearing a preamble;
- wherein the first sending module is configured to select a preamble and a PRACH resource and generate the preamble index indication information corresponding to the preamble and the PRACH resource indication information corresponding to the PRACH resource;
- and the first sending module is further configured to send the first paging message carrying the preamble index indication information and the PRACH resource indication information to the terminal;
- and
- wherein the identifying module is configured to receive, at a time-frequency position of the PRACH resource, a preamble sent by the terminal at the time-frequency position of the PRACH resource according to the preamble index indication information and the PRACH resource indication information.
9 more elements
Dependencies are inferred from the claim text.