Methods and apparatuses for control resource bundling and mapping in wireless communication systems

Abstract

Methods and apparatuses for controlling resource bundling in a wireless communication system, the method including selecting a bundle size; bundling, according to the bundle size, resource element groups (REGs) of a first control channel element (CCE) into one or more first REG bundles; and mapping the one or more first REG bundles to physical resource elements for control channel transmission.

1 . A method for control channel transmission, comprising:
 transmitting a bundle size of a resource element group (REG) bundle of each control resource set (CORESET) in multiple CORESETs, wherein the bundle size of the REG bundle of the each CORESET is for bundling REGs of each control channel element (CCE) of the each CORESET into one or more REG bundles, the one or more REG bundles are mapped to physical resource elements for transmission of a control channel; and   transmitting the control channel on the physical resource elements according to the bundle size.   
     
     
         2 . The method of  claim 1 , wherein the REGs in the each CCE are arranged in a frequency-first manner, a time-first manner, or a combination thereof, to form the one or more REG bundles. 
     
     
         3 . The method of  claim 1 , wherein the bundle size of the REG bundle of one of different CORESETs is different from that of the REG bundle of another CORESET. 
     
     
         4 . The method of  claim 1 , wherein the bundle size of the REG bundle of the each CORESET and a number of symbols of the each CORESET are defined in a same configuration. 
     
     
         5 . The method of  claim 1 , wherein multiple REG bundles in the each CCE are interleaved. 
     
     
         6 . A network apparatus for control channel transmission, comprising:
 a memory storing instructions; and   a processor communicatively coupled to the memory,   wherein the instructions, when executed by the processor, cause the processor to perform operations including:
 transmitting a bundle size of a resource element group (REG) bundle of each control resource set (CORESET) in multiple CORESETs, wherein the bundle size of the REG bundle of the each CORESET is for bundling REGs of each control channel element (CCE) of the each CORESET into one or more REG bundles, the one or more REG bundles are mapped to physical resource elements for transmission of a control channel; and 
 transmitting the control channel on the physical resource elements according to the bundle size. 
   
     
     
         7 . The network apparatus of  claim 6 , wherein the REGs in the each CCE are arranged in a frequency-first manner, a time-first manner, or a combination thereof, to form the one or more REG bundles. 
     
     
         8 . The network apparatus of  claim 6 , wherein the bundle size of the REG bundle of one of different CORESETs is different from that of the REG bundle of another CORESET. 
     
     
         9 . The network apparatus of  claim 6 , wherein the bundle size of the REG bundle of the each CORESET and a number of symbols of the each CORESET are defined in a same configuration. 
     
     
         10 . The network apparatus of  claim 6 , wherein multiple REG bundles in the each CCE are interleaved. 
     
     
         11 . A user device, comprising:
 a memory storing instructions; and   a processor communicatively coupled to the memory,   wherein the instructions, when executed by the processor, cause the processor to perform operations including:
 obtaining a bundle size of a resource element group (REG) bundle of each control resource set (CORESET) in multiple CORESETs, wherein the bundle size of the REG bundle of the each CORESET is for bundling REGs of each control channel element (CCE) of the each CORESET into one or more REG bundles, the one or more REG bundles are mapped to physical resource elements for transmission of a control channel; and 
 receiving the control channel on the physical resource elements according to the bundle size. 
   
     
     
         12 . The user device of  claim 11 , wherein the REGs in the each CCE are arranged in a frequency-first manner, a time-first manner, or a combination thereof, to form the one or more REG bundles. 
     
     
         13 . The user device of  claim 11 , wherein the bundle size of the REG bundle of one of different CORESETs is different from that of the REG bundle of another CORESET. 
     
     
         14 . The user device of  claim 11 , wherein the bundle size of the REG bundle of the each CORESET and a number of symbols of the each CORESET are defined in a same configuration. 
     
     
         15 . The user device of  claim 11 , wherein multiple REG bundles in the each CCE are interleaved.