US 11,082,993 B2Granted

Terminal device, integrated circuit, and wireless communication method

AssigneeSharp Kabushiki Kaisha

InventorsHiroki Takahashi, Shoichi Suzuki, Tatsushi Aiba, Kazunari Yokomakura

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Abstract

A terminal device transmits a signal to a base station apparatus through uplink. The terminal device considers a priority level for multiple MAC control elements in the logical channel prioritization procedure for the uplink, in a case where initial transmission is performed. At least first and second MAC control elements are included in the multiple MAC control elements. The first MAC control element provides the base station apparatus with information on an amount of first data available for transmission within a first buffer for the uplink. The second MAC control element provides the base station apparatus with information on amount of second data available for transmission within a second buffer for a first link that is used for communication between the terminal device and a different terminal device. The first MAC control element has a higher priority level than the second MAC control element except when being included for padding.

Claims12

Dependent claims

A terminal device configured to communicate with a base station apparatus through uplink, the terminal device comprising:

information generation circuitry configured to
perform a logical channel prioritization procedure for the uplink in a case that new transmission is performed, and
for the logical channel prioritization procedure, take into account priorities of a plurality of MAC control elements;
and
transmission circuitry configured to perform the new transmission based on a result of the logical channel prioritization procedure,
wherein the plurality of MAC control elements includes a first MAC control element, a second MAC control element and a third MAC control element,
the first MAC control element is used for a first Buffer Status Report (BSR) for the uplink,
the second MAC control element is used for a second BSR for a first link that is used for direct communication between the terminal device and another terminal device,
the third MAC control element is used to provide the base station apparatus with a power headroom report,
the first BSR is triggered as one of a first padding BSR, a first regular BSR and a first periodic BSR,
the second BSR is triggered as one of a second padding BSR, a second regular BSR and a second periodic BSR, and
for the logical channel prioritization procedure,
except in a case that the first BSR is triggered as the first padding BSR, the first MAC control element is higher in priority than the second MAC control element,
the third MAC control element is higher in priority than the second MAC control element.

11 more elements

An integrated circuit mountable on a terminal device configured to communicate with a base station apparatus through uplink, the integrated circuit causing the terminal device to perform at least functions of:

performing a logical channel prioritization procedure for the uplink in a case that new transmission is performed;
for the logical channel prioritization procedure, taking into account priorities of a plurality of MAC control elements;
and
performing the new transmission based on a result of the logical channel prioritization procedure,
wherein the plurality of MAC control elements includes a first MAC control element, a second MAC control element and a third MAC control element,
the first MAC control element is used for a first Buffer Status Report (BSR) for the uplink,
the second MAC control element is used for a second BSR for a first link that is used for direct communication between the terminal device and another terminal device,
the third MAC control element is used to provide the base station apparatus with a power headroom report,
the first BSR is triggered as one of a first padding BSR, a first regular BSR and a first periodic BSR,
the second BSR is triggered as one of a second padding BSR, a second regular BSR and a second periodic BSR, and
for the logical channel prioritization procedure,
except in a case that the first BSR is triggered as the first padding BSR, the first MAC control element is higher in priority than the second MAC control element,
the third MAC control element is higher in priority than the second MAC control element.

10 more elements

A wireless communication method for a terminal device configured to communicate with a base station apparatus through uplink, the wireless communication method comprising:

performing a logical channel prioritization procedure for the uplink in a case that new transmission is performed;
for the logical channel prioritization procedure, taking into account priorities of a plurality of MAC control elements;
and
performing the new transmission based on a result of the logical channel prioritization procedure,
wherein the plurality of MAC control elements includes a first MAC control element, a second MAC control element and a third MAC control element,
the first MAC control element is used for a first Buffer Status Report (BSR) for the uplink,
the second MAC control element is used for a second BSR for a first link that is used for direct communication between the terminal device and another terminal device,
the third MAC control element is used to provide the base station apparatus with a power headroom report,
the first BSR is triggered as one of a first padding BSR, a first regular BSR and a first periodic BSR,
the second BSR is triggered as one of a second padding BSR, a second regular BSR and a second periodic BSR, and
for the logical channel prioritization procedure,
except in a case that the first BSR is triggered as the first padding BSR, the first MAC control element is higher in priority than the second MAC control element,
the third MAC control element is higher in priority than the second MAC control element.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/260,944Filed 29 Jan 2019 · continuation
Priority: JP JP2014-05816920 Mar 2014
Published: US 2019/0174512 A16 Jun 2019
Granted: 3 Aug 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04W 72/569
Of the information or information source or recipient: of the traffic information
H04W 72/20
Local resource management: control channels or signalling for resource management
H04W 72/21
Control channels or signalling for resource management: in the uplink direction of a wireless link, i.e. towards the network
H04W 72/56
Allocation or scheduling criteria for wireless resources: based on priority criteria

Family

PCT/JP2015/058248Parent of this continuation · filed 19 Mar 2015
US 2019/0174512 A1Pre-grant publication · published 6 Jun 2019
Application15/125,778Parent of this continuation
US 10,206,221 B2Parent of this continuation
US 2017/0013638 A1Published application
US 11,082,993 B2This patent

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