Methods, apparatus and computer programs for half-duplex frequency division duplexing
US-2015280894-A1 · Oct 1, 2015 · US
Mobile terminal apparatus, base station apparatus and communication control method
US10615947B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10615947-B2 |
| Application number | US-201715825780-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 29, 2017 |
| Priority date | Feb 18, 2011 |
| Publication date | Apr 7, 2020 |
| Grant date | Apr 7, 2020 |
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- Title
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Abstract
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A user apparatus includes a transmission/reception circuit that transmits an uplink signal and receives a downlink signal; and a control circuit that switches to transmitting, as the uplink signal, an uplink control signal or a random access channel signal within a time interval configured of a plurality of symbols, after a given interval that is provided to prevent transmission of the uplink signal and reception of the downlink signal from overlapping each other within the time interval, by using a format in which first several symbols are blanked in the time interval.
First claim
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The invention claimed is: 1. A terminal comprising: a control circuit that when a transmission of an uplink signal and a reception of a download signal overlap each other within a time interval configured of a plurality of symbols, controls to transmit, as the uplink signal, an uplink control signal or a random access channel signal within the time interval, after a given interval that is provided to prevent transmission of the uplink signal and reception of the downlink signal from overlapping each other within the time interval, by using a format in which first several symbols are blanked in the time interval, in accordance with an instruction from a base station apparatus; and a transmission/reception circuit that receives the downlink signal in the time interval and transmits the uplink signal after the given interval within the time interval. 2. The terminal according to claim 1 , wherein the control circuit controls to receive a downlink control signal at a beginning of the time interval. 3. The terminal according to claim 1 , wherein the uplink control signal is a PUCCH (Physical Uplink Control Channel) signal and the random access channel signal is a PRACH (Physical Random Access Channel) signal. 4. A communication control method for a terminal, comprising: when a transmission of an uplink signal and a reception of a downlink signal overlap each other within a time interval configured of a plurality of symbols, controlling to transmit, as the uplink signal, an uplink control signal or a random access channel signal within the time interval, after a given interval that is provided to prevent transmission of the uplink signal and reception of the downlink signal from overlapping each other within the time interval, by using a format in which first several symbols are blanked in the time interval, in accordance with an instruction from a base station apparatus; and receiving the download link signal in the time interval and transmitting the uplink signal after the given interval within the time interval.
Assignees
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Classifications
of modulation type · CPC title
- H04L5/14Primary
Two-way operation using the same type of signal, i.e. duplex · CPC title
- H04L5/16Primary
Half-duplex systems; Simplex/duplex switching; Transmission of break signals {non-automatically inverting the direction of transmission} · CPC title
Variable division (indication of the divided channel H04L5/0092) · CPC title
the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title
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- What does patent US10615947B2 cover?
- A user apparatus includes a transmission/reception circuit that transmits an uplink signal and receives a downlink signal; and a control circuit that switches to transmitting, as the uplink signal, an uplink control signal or a random access channel signal within a time interval configured of a plurality of symbols, after a given interval that is provided to prevent transmission of the uplink s…
- Who is the assignee on this patent?
- Ntt Docomo Inc
- What technology area does this patent fall under?
- Primary CPC classification H04L5/14. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 07 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).