WIRELESS EQUIPMENT FOR TRANSMITTING UPLINK SIGNAL THROUGH REDUCED TRANSMISSION RESOURCE BLOCK AND POWER, AND ENODEB

• US 20150071203A1
• Filed: 05/08/2013
• Published: 03/12/2015
• Est. Priority Date: 05/16/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Sangwook, Yang, Yoonoh, Lim, Suhwan, Jung, Manyoung, Hwang, Jinyup
• Granted Patent: US 9,736,851 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0066 Requirements on out-of-channel emissions
• CPC Class Codes: H04W 72/54 based on quality criteria

Abstract

According to one embodiment of the present invention, provided is a wireless equipment for transmitting an uplink signal through a reduced transmission resource block (RB) in a wireless communication system. The wireless equipment can comprise: a processor; and a radio frequency (RF) unit for transmitting an uplink signal under control of the processor. When the RF unit is set to a predetermined channel bandwidth and a predetermined frequency range and must satisfy a predetermined maximum allowed value of spurious radiation to protect another frequency range, the uplink signal can be transmitted according to a predetermined maximum number of RBs instead of a total number of RBs for the predetermined channel bandwidth.

Claims

1. A wireless apparatus for transmitting an uplink signal in a wireless communication system, the wireless device comprising:

a processor; and

an RF (Radio Frequency) unit controllable by the processor and configured to support E-UTRA band and transit an uplink signal, wherein

if the RF unit is configured to use a predetermined channel bandwidth in a predetermined frequency range and it is required to meet a predetermined permitted maximum level of a spurious emission to protect another frequency range, the uplink signal is transmitted according to a predetermined maximum number of resource blocks (RBs) instead of a total number of resource blocks (RBs) corresponding to the predetermined channel bandwidth.

2. The wireless apparatus of claim 1, wherein the predetermined number of RBs is obtained by reducing a portion from the total number of RBs.

3. The wireless apparatus of claim 2, wherein the maximum lever of spurious emission is −

40 dBm/MHz.

4. The wireless apparatus of claim 1, wherein

if the predetermined channel bandwidth is 5 MHz, the total number of RBs is 25;

and

if the predetermined channel bandwidth is 10 MHz, the total number of RBs is 50.

5. The wireless apparatus of claim 1, wherein

if the predetermined channel bandwidth is 5 MHz, the predetermined number of RB is fewer than or equal to 20 which is obtained by reducing 5 from 25 of the total number of RBs;

and

if the predetermined channel bandwidth is 10 MHz, the predetermined number of RB is fewer than or equal to 32 which is obtained by reducing 18 from 50 of the total number of RBs.

6. The wireless apparatus of claim 1, wherein

if the predetermined channel bandwidth is 5 MHz, the predetermined number of RB is fewer than or equal to 20,

if the predetermined channel bandwidth is 10 MHz, the predetermined number of RB is fewer than or equal to 32.

7. The wireless apparatus of claim 1, wherein

the predetermined frequency range corresponds to a operating band 8 defined in 3gpp long term evolution (LTE) standard.

8. The wireless apparatus of claim 6, wherein the operating band 8 is defined as 880 MHz through 915 MHz for uplink and as 925 MHz through 960 MHz for downlink.

9. The wireless apparatus of claim 1, wherein when the number of the predetermined RBs is represented as N_{restricted—}

_RB, N<sub>restricted—

RB</sub>=N_{full RB of transmission bandwidth}−

N<sub>RB—

limitation</sub>, wherein N_{full RB of transmission bandwidth} is the number of all of RBs of a transmission bandwidth constituting a channel bandwidth, and N<sub>RB—

limitation</sub> is the number of RBs to be limited to satisfy a predetermined permitted value of a spurious emission.

10. A base station receiving an uplink signal in a wireless communication system, the base station comprising:

an RF (Radio Frequency) unit configured to support E-UTRA band and transit and receive an uplink signal; and

a processor connected with the RF unit and controlling the RF unit,

wherein if the RF unit is configured to use a predetermined channel bandwidth in a predetermined frequency range and it is required to meet a predetermined permitted maximum level of a spurious emission to protect another frequency range, the processor assigns an uplink resource according to a predetermined maximum number of resource blocks (RBs) instead of a total number of resource blocks (RBs) corresponding to the predetermined channel bandwidth.

11. The base station of claim 10, wherein the predetermined number of RBs is obtained by reducing a portion from the total number of RBs.

12. The base station of claim 11, wherein

if the predetermined channel bandwidth is 5 MHz, the total number of RBs is 25;

and

if the predetermined channel bandwidth is 10 MHz, the total number of RBs is 50.

13. The base station of claim 12, wherein

if the predetermined channel bandwidth is 5 MHz, the predetermined number of RB is fewer than or equal to 20 which is obtained by reducing 5 from 25 of the total number of RBs;

and

if the predetermined channel bandwidth is 10 MHz, the predetermined number of RB is fewer than or equal to 32 which is obtained by reducing 18 from 50 of the total number of RBs.

14. The base station of claim 10, wherein

if the predetermined channel bandwidth is 5 MHz, the predetermined number of RB is fewer than or equal to 20,

if the predetermined channel bandwidth is 10 MHz, the predetermined number of RB is fewer than or equal to 32.

15. The base station of claim 10, wherein the predetermined frequency range corresponds to a operating band 8 defined in 3gpp long term evolution (LTE) standard.