Apparatus and method for transmitting and receiving data streams in wireless system

Abstract

A method for transmitting data including a plurality of data streams in a wireless system is described. The method includes receiving one or more data streams; mapping the received data streams to at least one logical frame; mapping the logical frame to more than one additional physical slot; configuring each of the more than one additional physical slot includes signaling information for receiving the data streams; and transmitting at least one superframe including the more than one additional physical slot.

What is claimed is: 
     
         1 . A method for transmitting data including a plurality of data streams in a wireless system, comprising:
 receiving one or more data streams;   mapping the received data streams to at least one logical frame;   mapping the logical frame to more than one additional physical slot;   configuring each of the more than one additional physical slot includes signaling information for receiving the data streams; and   transmitting at least one superframe including the more than one additional physical slot.   
     
     
         2 . The method of  claim 1 , wherein the data streams are broadcast data streams for a handheld terminal. 
     
     
         3 . The method of  claim 1 , wherein the signaling information includes P1, L1-pre and L1-post information, and the L1-post information includes L1-config and L1-dynamic information. 
     
     
         4 . The method of  claim 3 , wherein the P1 and L1-pre information is allocated in every additional physical slot. 
     
     
         5 . The method of  claim 3 , wherein when the logical frame is transmitted at one radio frequency, the L1-config and L1-dynamic information is arranged at a head of each of the logical frames. 
     
     
         6 . The method of  claim 3 , wherein when consecutive logical frames form a logical channel, the logical frame is transmitted at more than one radio frequency, and there is more than one logical channel, one logical channel is set as a primary logical channel, the remaining logical channel is set as a secondary logical channel, the L1-config and L1-dynamic information is arranged at a head of each of logical frames of the primary logical channel, and the L1-dynamic information is arranged at a head of each of logical frames of the secondary logical channel. 
     
     
         7 . The method of  claim 6 , wherein the logical channel includes the superframe, the superframe includes a plurality of logical frames, and the L1-config information is additionally arranged at a head of each of superframes of the secondary logical channel. 
     
     
         8 . The method of  claim 3 , wherein the L1-pre information includes any one of L1_OFFSET_TIME indicating the number of cells between L1-pre and L1-post, NGH_SLOT_INTERVAL indicating an interval between two consecutive Next Generation Handheld (NGH) slots, L1_OFFSET_FREQ indicating a Radio Frequency (RF) frequency of a next slot carrying a logical frame of a Logical NGH Channel (LNC) transmitted in a current slot, and LNC_OFFSET_DELTA indicating a gap between the current slot and the next slot carrying a logical frame of the current LNC. 
     
     
         9 . An apparatus for transmitting data including a plurality of data streams in a wireless system, comprising:
 a first gateway for mapping data streams to one or more logical channels each including at least one logical frame and mapping the logical frame to more than one additional physical slot;   one or more first modulators for generating data to be included in the additional physical slot based on the logical channels;   a physical slot agent for distributing the data to be included in the additional physical slot to one or more second modulators; and   the one or more second modulators for modulating and transmitting at least one superframe including the additional physical slot,   wherein the physical slot includes signaling information for receiving the data streams.   
     
     
         10 . The apparatus of  claim 9 , wherein the data streams are broadcast data streams for a handheld terminal. 
     
     
         11 . The apparatus of  claim 9 , wherein the signaling information includes P1, L1-pre and L1-post information, and the L1-post information includes L1-config and L1-dynamic information. 
     
     
         12 . The apparatus of  claim 11 , wherein the P1 and L1-pre information is allocated in every additional physical slot. 
     
     
         13 . The apparatus of  claim 11 , wherein when the frame is transmitted at one radio frequency, the L1-config and L1-dynamic information is arranged at a head of each of the logical frame. 
     
     
         14 . The apparatus of  claim 11 , wherein when consecutive logical frames form a logical channel, the logical frame is transmitted at more than one radio frequency, and there is more than one logical channel, one logical channel is set as a primary logical channel, the remaining logical channel is set as a secondary logical channel, the L1-config and L1-dynamic information is arranged at a head of each of logical frames of the primary logical channel, and the L1-dynamic information is arranged at a head of each of logical frames of the secondary logical channel. 
     
     
         15 . The apparatus of  claim 11 , wherein the L1-pre information includes any one of L1_OFFSET_TIME indicating the number of cells between L1-pre and L1-post, NGH_SLOT_INTERVAL indicating an interval between two consecutive Next Generation Handheld (NGH) slots, L1_OFFSET_FREQ indicating a Radio Frequency (RF) frequency of a next slot carrying a logical frame of a Logical NGH Channel (LNC) transmitted in a current slot, and LNC_OFFSET_DELTA indicating a gap between the current slot and the next slot carrying a logical frame of the current LNC. 
     
     
         16 . A method for receiving data including a plurality of data streams in a wireless system, comprising:
 receiving at least one superframe including more than one additional physical slot;   forming at least one logical frame using data allocated to the additional physical slot;   obtaining a location of the additional physical slot of each of the logical frame;   obtaining signaling information for receiving data stream included in the additional physical slot; and   receiving data streams allocated to the additional physical slot using the signaling information.   
     
     
         17 . The method of  claim 16 , wherein the data streams are broadcast data streams for a handheld terminal. 
     
     
         18 . The method of  claim 16 , wherein the forming the logical frame further comprises:
 extracting data streams from the logical frame.   
     
     
         19 . The method of  claim 16 , wherein the signaling information includes P1, L1-pre and L1-post information, and the L1-post information includes L1-config and L1-dynamic information. 
     
     
         20 . The method of  claim 19 , wherein the P1 and L1-pre information is allocated in every additional physical slot. 
     
     
         21 . The method of  claim 19 , wherein when the logical frame is transmitted at one radio frequency, the L1-config and L1-dynamic information is arranged at a head of each of the logical frame. 
     
     
         22 . The method of  claim 19 , wherein when consecutive logical frames form a logical channel, the logical frame is transmitted at more than one radio frequency, and there is more than one logical channel, one logical channel is set as a primary logical channel, the remaining logical channel is set as a secondary logical channel, the L1-config and L1-dynamic information is arranged at a head of each of logical frames of the primary logical channel, and the L1-dynamic information is arranged at a head of each of logical frames of the secondary logical channel. 
     
     
         23 . The method of  claim 22 , wherein the logical channel includes the superframe, the superframe includes a plurality of logical frames, and the L1-config information is additionally arranged at a head of each of superframes of the secondary logical channel. 
     
     
         24 . The method of  claim 22 , wherein the L1-pre information includes any one of L1_OFFSET_TIME indicating the number of cells between L1-pre and L1-post, NGH_SLOT_INTERVAL indicating an interval between two consecutive Next Generation Handheld (NGH) slots, L1_OFFSET_FREQ indicating a Radio Frequency (RF) frequency of a next slot carrying a logical frame of a Logical NGH Channel (LNC) transmitted in a current slot, and LNC_OFFSET_DELTA indicating a gap between the current slot and the next slot carrying a logical frame of the current LNC. 
     
     
         25 . An apparatus for receiving a broadcast frame in a wireless system, comprising:
 a logical channel selector for receiving at least one logical frame mapped to more than one additional physical slot and extracting signaling information included in the additional physical slot; and   one or more Radio Frequency (RF) selector for receiving an RF signal and obtaining data streams allocated to the additional physical slot using the signaling information extracted by the logical channel selector.   
     
     
         26 . The apparatus of  claim 25 , further comprising one or more decoding unit for decoding data that is transmitted in a physical slot. 
     
     
         27 . The apparatus of  claim 25 , wherein the signaling information includes P1, L1-pre and L1-post information, and the L1-post information includes L1-config and L1-dynamic information. 
     
     
         28 . The apparatus of  claim 27 , wherein the P1 and L1-pre information is allocated in every additional physical slot. 
     
     
         29 . The apparatus of  claim 27 , wherein when the logical frame is transmitted at one radio frequency, the L1-config and L1-dynamic information is arranged at a head of each of the logical frame. 
     
     
         30 . The apparatus of  claim 27 , wherein when consecutive logical frames form a logical channel, the frame is transmitted at more than one radio frequency, and there is more than one logical channel, one logical channel is set as a primary logical channel, the remaining logical channel is set as a secondary logical channel, the L1-config and L1-dynamic information is arranged at a head of each of logical frames of the primary logical channel, and the L1-dynamic information is arranged at a head of each of logical frames of the secondary logical channel. 
     
     
         31 . The apparatus of  claim 27 , wherein the L1-pre information includes any one of L1_OFFSET_TIME indicating the number of cells between L1-pre and L1-post, NGH_SLOT_INTERVAL indicating an interval between two consecutive Next Generation Handheld (NGH) slots, L1_OFFSET_FREQ indicating a Radio Frequency (RF) frequency of a next slot carrying a logical frame of a Logical NGH Channel (LNC) transmitted in a current slot, and LNC_OFFSET_DELTA indicating a gap between the current slot and the next slot carrying a logical frame of the current LNC.