US 2019/0104555 A1Published application

Random Access Method and Related Apparatus

AssigneeHuawei Technologies Co., Ltd.

InventorsYongxia Lyu, Wei Quan, Xiaodong Yang, Chaojun Li, Bo Li

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Abstract

A user equipment receives first signaling from a base station through a physical downlink shared channel (PDSCH), and receives second signaling from the base station through a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH), where the first signaling includes a first time division duplexing TDD uplink-downlink configuration, and the second signaling includes a second TDD uplink-downlink configuration; the user equipment determines, according to the first TDD uplink-downlink configuration, an uplink subframe for sending a random access message; and the user equipment sends the random access message to the base station in the determined uplink subframe.

Claims20

Dependent claims

A method comprising:

sending, by a base station, first signaling to a terminal device through a physical downlink shared channel (PDSCH), and sending, by the base station, second signaling to the terminal device through a downlink control channel, wherein the first signaling comprises a first time division duplexing (TDD) uplink-downlink configuration, the second signaling comprises a second TDD uplink-downlink configuration, and the downlink control channel is a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH);
when both the first signaling and the second signaling are sent to the terminal device, receiving, by the base station, random access message from the terminal device in a first uplink subframe within a first uplink subframe set of the first TDD uplink-downlink configuration;
and
when both the first signaling and the second signaling are sent to the terminal device, after the terminal device accesses the base station,
receiving, by the base station from the terminal device, data in a second uplink subframe within a second uplink subframe set of the second TDD uplink-downlink configuration or
sending, by the base station to the terminal device, data in a first downlink subframe within a downlink subframe set of the second TDD uplink-downlink configuration.

3 more elements

An apparatus comprising:

a storage medium including executable instructions;
and
a processor, wherein the executable instructions, when executed by the processor, cause the apparatus to:
send first signaling to a terminal device through a physical downlink shared channel (PDSCH), and send second signaling to the terminal device through a downlink control channel, wherein the first signaling comprises a first time division duplexing (TDD) uplink-downlink configuration, the second signaling comprises a second TDD uplink-downlink configuration, and the downlink control channel is a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH);
when both the first signaling and the second signaling are sent to the terminal device, receive random access message from the terminal device in a first uplink subframe within a first uplink subframe set of the first TDD uplink-downlink configuration;
and
when both the first signaling and the second signaling are sent to the terminal device, after the terminal device accesses a base station,
receive, data sent from the terminal device in a second uplink subframe within a second uplink subframe set of the second TDD uplink-downlink configuration or
send, to the terminal device, data in a first downlink subframe within a downlink subframe set of the second TDD uplink-downlink configuration.

6 more elements

A non-transitory computer-readable medium storing computer instructions that, when executed by one or more hardware processors, cause the one or more hardware processors to:

send first signaling to a terminal device through a physical downlink shared channel (PDSCH), and send second signaling to the terminal device through a downlink control channel, wherein the first signaling comprises a first time division duplexing (TDD) uplink-downlink configuration, the second signaling comprises a second TDD uplink-downlink configuration, and the downlink control channel is a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH);
when both the first signaling and the second signaling are sent to the terminal device, receive random access message from the terminal device in a first uplink subframe within a first uplink subframe set of the first TDD uplink-downlink configuration;
and
when both the first signaling and the second signaling are sent to the terminal device, after the terminal device accesses a base station,
receive, data sent from the terminal device in a second uplink subframe within a second uplink subframe set of the second TDD uplink-downlink configuration or
send, to the terminal device, data in a first downlink subframe within a downlink subframe set of the second TDD uplink-downlink configuration.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/208,106Filed 3 Dec 2018
Priority: 1 Nov 2013
Published: 4 Apr 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04W 74/06
Scheduled access: using polling
H04L 5/14
Arrangements affording multiple use of the transmission path: two-way operation using the same type of signal, i.e. duplex
H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal
H04W 74/0833
Non-scheduled access, e.g. ALOHA: random access procedures, e.g. with 4-step access

Family

Application15/143,559Continuation · filed 30 Apr 2016
Application16/208,106Continuation
US 10,159,095 B2Related patent
US 10,462,826 B2Related patent
US 2016/0249386 A1Published application
US 2019/0104555 A1This patent

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