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Method and apparatus of transmitting control information in wireless communication systems

a wireless communication system and control information technology, applied in the direction of power management, machine-to-machine/machine-type communication services, wireless commuication services, etc., can solve the problem of saturated frequency resources

Inactive Publication Date: 2016-07-21
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a method and device that helps a machine-type communication (MTC) device efficiently connect to a base station when accessing it without permission.

Problems solved by technology

However, frequency resources have been saturated as of today, and the wide frequency band is partially being used for various techniques.

Method used

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  • Method and apparatus of transmitting control information in wireless communication systems
  • Method and apparatus of transmitting control information in wireless communication systems
  • Method and apparatus of transmitting control information in wireless communication systems

Examples

Experimental program
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first embodiment

[0073]FIGS. 3A and 3B are views illustrating an extended PHR MAC control information format available in LTE CA.

[0074]MAC header includes a sub-header for extended PHR. In FIG. 3A, it is assumed that the MAC Control element 2310 is extended PHR MAC control information, and of the MAC sub-headers, the second MAC sub-header 320 is sub-header for PHR MAC CE (control element). The second MAC sub-header 320 includes LCID (Logical Channel ID) (e.g., LCID value “11001”) indicating that the extended PHR is included in the MAC payload and L that is a value indicating the size of PHR. The LCID value denotes whether activation / deactivation is included in the MAC payload.

[0075]The extended PHR MAC control information 310 includes PCell Type2 PH, PCell Type1 PH, and SCell PHs. As shown in FIG. 3B, in the continuous bytes, the extended PHR MAC control information 310 includes, as the PH information of each cell, PCell's Type 2 PH→PCell's Type 1 PH→first SCell's PH→second SCell's PH→third SCell's ...

second embodiment

[0076]FIG. 4 is a view illustrating the activation / deactivation MAC control information format.

[0077]The second MAC sub-header 420 includes an LCID (e.g., LCID value “11001”) indicating that the extended PHR is included in the MAC payload and L that is a value indicating the size of PHR. The LCID value denotes whether activation / deactivation is included in the MAC payload.

[0078]The definition of each field in the MAC subheader is as follows. See 3GPP standard TS36.321 for details.

[0079]The MAC header is of variable size and consists of the following fields,[0080]LCID: The Logical Channel ID field identifies the logical channel instance of the corresponding MAC SDU or the type of the corresponding MAC control element or padding as described in tables 6.2.1-1, 6.2.1-2 and 6.2.1-4 for the DL-SCH, UL-SCH and MCH respectively. There is one LCID field for each MAC SDU, MAC control element or padding included in the MAC PDU. In addition to that, one or two additional LCID fields are includ...

third embodiment

[0122]FIGS. 5A and 5B are views illustrating examples of an enhanced extended PHR control information format supporting up to 32 serving cells according to the present disclosure.

[0123]Enhanced extended PHR is hereinafter denoted “e-extended PHR.” Referring to FIG. 5A, as the LCID included in the MAC sub-header 520, a new ID value may be defined to indicate that the MAC payload is e-extended PHR MAC control information, or a legacy ID value may be used to indicate that the MAC payload is e-extended PHR MAC control information, and the size of the e-extended PHR mAC control information may be denoted using the L field. Since presumably N=32, up to 31 SCells except PCell may be reported. Thus, i in ci field may be an integer in a range from 1 to 31.

[0124]Although FIG. 5B presumably illustrates that R field in the fourth byte is positioned at the MSB (most significant bit), R field may alternately be positioned at LSB (least significant bit). The description of relevant parts in connec...

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Abstract

The present disclosure relates to communication schemes for combining 5G communication systems with IoT technology to support higher data transmission rate as post-4G systems and systems for the same. The present disclosure may be used in intelligent services (e.g., smart home, smart building, smart city, smart car, or connected car, health-care, digital education, retail business, security and safety-related services, etc.) based on the 5G communication technology and IoT-related techniques. According to an embodiment of the present disclosure, a method for transmitting control information in a wireless communication system comprises generating a header including a plurality of MAC subheaders and a medium access control (MAC) control information including a control field indicating whether there are included information related to a power headroom for a primary cell (PCell) and information regarding secondary cells (SCells) reportable to an extended power headroom and transmitting a payload including the MAC control information and the header, wherein the control field indicating activation or deactivation of at least one of the SCells.

Description

PRIORITY[0001]This application claims the benefit under 35 U.S.C. §119(e) to a US patent application filed in the United States Patent and Trademark Office on Jan. 16, 2015 and assigned Ser. No. 62 / 104,320, a US patent application filed in the United States Patent and Trademark Office on Feb. 6, 2015 and assigned Ser. No. 62 / 112,986, and a US patent application filed in the United States Patent and Trademark Office on Jul. 20, 2015 and assigned Ser. No. 62 / 194,632, the entire disclosure of each of which is hereby incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present disclosure relates to methods and apparatuses for transmitting control information in wireless communication systems.[0004]2. Description of the Related Art[0005]In order to meet the demand for wireless data traffic soring since the 4G communication system came to the market, there are ongoing efforts to develop enhanced 5G communication systems or pre-5G communication syst...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04L29/06H04W52/36
CPCH04W72/0406H04L69/22H04W52/365H04W52/58H04W4/70H04L5/001H04L5/0053H04L5/0092H04L5/0096H04L1/08H04L65/1073H04L65/1016H04W74/004H04L5/0098H04W72/20H04L5/00
Inventor JANG, JAE-HYUKKIM, SANG-BUMJEONG, KYEONG-INWON, SUNG-HWANKIM, SOENG-HUNKIM, SUNG-HOONCHO, SONG-YEAN
Owner SAMSUNG ELECTRONICS CO LTD
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