Method and device for transmitting and receiving signal by terminal in wireless communication system to which carrier aggregation technique is applied
US-2015223233-A1 · Aug 6, 2015 · US
Method and user equipment for transmitting uplink signal
US2016057784A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016057784-A1 |
| Application number | US-201414782736-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 5, 2014 |
| Priority date | Apr 11, 2013 |
| Publication date | Feb 25, 2016 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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The present invention provides a method and user equipment for transmitting an uplink signal capable of enhancing coverage while conserving energy by separating a cell for receiving a downlink from a cell for transmitting an uplink.
First claim
Opening claim text (preview).
1 . A method for transmitting an uplink signal by a user equipment, the method comprising: receiving configuration information indicating a plurality of frequencies for uplink through a downlink operating frequency of a first cell; performing a physical random access channel (PRACH) transmission on at least one frequency among the plurality of frequencies; receiving frequency information indicating an uplink operating frequency for the uplink signal in response to the PRACH transmission; and transmitting the uplink signal through the uplink operating frequency based on the frequency information. 2 . The method according to claim 1 , wherein the uplink operating frequency is an uplink operating frequency of a second cell different from an uplink operating frequency of the first cell. 3 . The method according to claim 2 , wherein the second cell is a small cell having coverage less than a predetermined reference value. 4 . The method according to claim 2 , further comprising: receiving a timing advance (TA) value for the PRACH transmission through a downlink operating frequency of the second cell, wherein the TA value is ‘0’. 5 . A user equipment for transmitting an uplink signal, the user equipment comprising: a radio frequency (RF) unit and a processor configured to control the RF unit, wherein the processor controls the RF unit to receive configuration information indicating a plurality of frequencies for uplink through a downlink operating frequency of a first cell; controls the RF unit to perform a physical random access channel (PRACH) transmission on at least one frequency among the plurality of frequencies; controls the RF unit to receive frequency information indicating an uplink operating frequency for the uplink signal in response to the PRACH transmission; and controls the RF unit to transmit the uplink signal through the uplink operating frequency based on the frequency information. 6 . The user equipment according to claim 5 , wherein the uplink operating frequency is an uplink operating frequency of a second cell different from an uplink operating frequency of the first cell. 7 . The user equipment according to claim 6 , wherein the second cell is a small cell having coverage less than a predetermined reference value. 8 . The user equipment according to claim 6 , wherein the processor controls the RF unit to further receive a timing advance (TA) value for the PRACH transmission through a downlink operating frequency of the second cell and wherein the TA value is ‘0’.
Assignees
Inventors
Classifications
- H04W88/04Primary
adapted for relaying to or from another terminal or user · CPC title
- H04W74/0833Primary
Random access procedures, e.g. with 4-step access · CPC title
in wireless communication networks · CPC title
Transmission of channel access control information · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016057784A1 cover?
- The present invention provides a method and user equipment for transmitting an uplink signal capable of enhancing coverage while conserving energy by separating a cell for receiving a downlink from a cell for transmitting an uplink.
- Who is the assignee on this patent?
- Lg Electronics Inc
- What technology area does this patent fall under?
- Primary CPC classification H04W88/04. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Feb 25 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).