Method and device for resource configuration

Abstract

The present invention discloses a method and a device for resource configuration, the method includes: at first a base station broadcasts public resource configuration to a user equipment on a broadcast channel, and then the base station obtains an available public resource after receiving RRC connection request sent by a target user equipment in a desynchronization state, the target user equipment is a user equipment of the user equipments which is in a desynchronization state; finally the base station sends an index number of the available public resource to the target user equipment, so that the target user equipment performs data transmission through the available public resource corresponding to the index number of the available public resource. The present invention can be applied to the field of communication system.

What is claimed is: 
     
         1 . A method for resource configuration, comprising:
 broadcasting, by a base station, public resource configuration to a user equipment on a broadcast channel, wherein the public resource configuration comprises a physical resource configuration list (PHYConfig list);   receiving, by the base station, a radio resource control protocol (RRC) connection request sent by a target user equipment (UE) which is in a desynchronization state;   obtaining, by the base station, an available public resource after receiving the RRC connection request sent by the target UE;   sending, by the base station, an index number of the available public resource to the target UE, the index number of the available public resource is configured to perform data transmission through the available public resource corresponding to the index number of the available public resource by the target UE, wherein the available public resource is obtained by the target UE from the PHYConfig list according to the index number of the available public resource.   
     
     
         2 . The method for resource configuration according to  claim 1 , wherein before receiving, by the base station, the RRC connection request sent by the target UE which is in the desynchronization state, the method further comprises:
 triggering, by the base station, the target UE to enter into the desynchronization state through medium access control (MAC) layer control information or a RRC message.   
     
     
         3 . The method for resource configuration according to  claim 1 , wherein the obtaining, by the base station, the available public resource after receiving the RRC connection request sent by the target UE comprises:
 if the target UE accesses through an ordinary preamble (preamble) and accesses successfully, obtaining, by the base station, the available public resource after receiving a MSG3 message which carries a RRC connection request and is sent by the target UE.   
     
     
         4 . The method for resource configuration according to  claim 1 , wherein the public resource configuration further comprises access resources (RACH resources),
 the obtaining, by the base station, the available public resource after receiving the RRC connection request sent by the target UE which is in the desynchronization state comprises:   if the target UE accesses through a dedicated preamble for public resource contention, obtaining, by the base station, the available public resource after receiving access information which carries the dedicated preamble for the public resource contention and is sent by the target UE, wherein the dedicated preamble for the public resource contention is selected from the RACH resources by the target UE;   the sending, by the base station, the index number of the available public resource to the target UE comprises:   sending, by the base station, an extended access response (RAR) to the target UE, wherein the extended RAR carries the index number of the available public resource.   
     
     
         5 . The method for resource configuration according to  claim 1 , wherein after broadcasting, by the base station, the public resource configuration to the UEs on the broadcast channel, the method further comprises:
 when the base station needs to transmit downlink data to the target UE and the available public resource exists, sending, by the base station the index number of the available public resource to the target UE and a physical downlink control channel order (PDCCH order) to the target UE;   if the PDCCH order carries a dedicated access resource configured for the target UE, then after the target UE accesses successfully through the dedicated access resource, scheduling, by the base station, the target UE to receive the downlink data through the available public resource, wherein the available public resource is obtained by the target UE from the PHYConfig list according to the index number of the available public resource; or   if the PDCCH order does not carry the dedicated access resource configured for the target UE, then after the target UE accesses successfully, receiving, by the base station, an identifier C-RNTI of the target UE which is sent by the target UE;   scrambling, by the base station, a physical downlink control channel with the C-RNTI, and indicating the UE, via the scrambled physical downlink control channel, to receive the downlink data through the available public resource.   
     
     
         6 . A method for resource configuration, comprising:
 receiving, by a target user equipment (UE), public resource configuration sent by a base station through a broadcast channel, wherein the public resource configuration comprises a physical resource configuration list (PHYConfig list);   sending, by the target UE, a RRC connection request to the base station for obtaining an available public resource, wherein the target user equipment is in a desynchronization state;   receiving, by the target UE, an index number of the available public resource sent by the base station;   performing, by the target UE, data transmission through the available public resource corresponding to the index number of the available public resource, wherein the available public resource is obtained by the target UE from the PHYConfig list according to the index number of the available public resource.   
     
     
         7 . The method for resource configuration according to  claim 6 , wherein before sending, by the target UE the RRC connection request to the base station, wherein the target UE is in the desynchronization state, the method further comprises:
 entering, by the target UE, into the desynchronization state according to medium access control (MAC) layer control information or a radio resource control protocol (RRC) message.   
     
     
         8 . The method for resource configuration according to  claim 6 , wherein the sending, by the target UE, the RRC connection request to the base station, wherein the target UE is in the desynchronization state, comprises:
 if the target UE accesses through an ordinary preamble (preamble) and accesses successfully, sending, by the target UE to the base station, a MSG3 message carrying a RRC connection request.   
     
     
         9 . The method for resource configuration according to  claim 6 , wherein the public resource configuration further comprises access resources (RACH resources),
 the sending, by the target UE, the RRC connection request to the base station, wherein the target UE is in the desynchronization state, comprises:   if the target UE accesses through a dedicated preamble for public resource contention, sending, by the target UE to the base station, access information carrying the dedicated preamble for the public resource contention, wherein the dedicated preamble for the public resource contention is selected by the target UE from the RACH resources;   the receiving, by the target UE, the index number of the available public resource sent by the base station comprises:   receiving, by the target UE, an extended access response (RAR) sent by the base station, wherein the extended RAR carries the index number of the available public resource.   
     
     
         10 . The method for resource configuration according to  claim 6 , wherein after receiving, by the target UE, the public resource configuration sent by the base station through the broadcast channel, the method further comprises:
 when the base station needs to transmit downlink data to the target UE and an available public resource exists, receiving, by the target UE, an index number of the available public resource and a physical downlink control channel order (PDCCH order) sent by the base station;   if the PDCCH order carries a dedicated access resource configured for the target UE, receiving, by the target UE, the downlink data through the available public resource according to a schedule of the base station,   wherein the available public resource is obtained by the target UE from the PHYConfig list according to the index number of the available public resource; or   if the PDCCH order does not carry the dedicated access resource configured for the target UE, then after the target UE accesses successfully, sending, by the target UE, an identifier C-RNTI of the target UE to the base station;   receiving, by the target UE, the downlink data through the available public resource according to an indication of the base station.   
     
     
         11 . A base station, comprising:
 a processor, configured to broadcast public resource configuration to a target user equipment (UE) on a broadcast channel, wherein the public resource configuration comprises a physical resource configuration list (PHYConfig list);   a receiver, configured to, after the processor broadcasts the public resource configuration to the target UE on the broadcast channel, receive a RRC connection request sent by the target UE which is in a desynchronization state;   the processor, is further configured to, after the receiver receives the RRC connection request sent by the target UE, obtain an available public resource;   a transmitter, configured to send to the target UE an index number of the available public resource obtained by the processor, wherein the index number of the available public resource is configured to perform data transmission through the available public resource corresponding to the index number of the available public resource by the target UE, wherein the available public resource is obtained by the target UE according to the index number of the available public resource, from the PHYConfig list broadcasted by the processor.   
     
     
         12 . The base station according to  claim 11 , wherein:
 the processor, is further configured to, before the receiver receives the RRC connection request sent by the target UE, trigger the target UE to enter into the desynchronization state through medium access control (MAC) layer control information or a radio resource control protocol (RRC) message.   
     
     
         13 . The base station according to  claim 11 , wherein:
 the receiver, is specifically configured to, if the target UE accesses through an ordinary preamble (preamble) and accesses successfully, receive a MSG3 message which carries a RRC connection request and is sent by the target UE.   
     
     
         14 . The base station according to  claim 11 , wherein the public resource configuration further comprises access resources (RACH resources),
 the receiver, is further specifically configured to, if the target UE accesses through a dedicated preamble for public resource contention, receive access information which carries the dedicated preamble for public resource contention and is sent by the target UE, wherein the dedicated preamble for the public resource contention is selected from the RACH resources by the target UE;   the transmitter, is specifically configured to send an extended access response (RAR) to the target UE, wherein the extended RAR carries the index number of the available public resource.   
     
     
         15 . The base station according to  claim 11 , wherein:
 the transmitter, is further configured to, after the processor broadcasts the public resource configuration to the UE on the broadcast channel, if downlink data need to be transmitted to the target UE and the available public resources exists, send the index number of the available public resource to the target UE and send a physical downlink control channel order (PDCCH order) to the target UE;   the processor, is further configured to, if the PDCCH order carries a dedicated access resource configured for the target UE, then after the target UE accesses successfully through the dedicated access resource, schedule the target UE to receive the downlink data through the available public resource,   wherein the available public resource is obtained by the target UE from the PHYConfig list according to the index number of the available public resource; or   the receiver, is further configured to, if the PDCCH order does not carry the dedicated access resource configured for the target UE, then after the target UE accesses successfully, receive an identifier C-RNTI of the target UE which is sent by the target UE;   the processor, is further configured to, after scrambling a physical downlink control channel with the C-RNTI received by the receiver, indicate the UE, via the scrambled physical downlink control channel, to receive the downlink data through the available public resource.   
     
     
         16 . A user equipment (UE), comprising:
 a receiver, configured to receive public resource configuration sent by a base station through a broadcast channel, wherein the public resource configuration comprises a physical resource configuration list (PHYConfig list);   a transmitter, configured to, after the receiver receives the public resource configuration sent by the base station through the broadcast channel, send RRC connection request to the base station, so that the base station obtains an available public resource;   the receiver, is further configured to receive an index number of the available public resource sent by the base station;   a processor, configured to perform data transmission through the available public resource corresponding to the index number of the available public resource received by the receiver, wherein the available public resource is obtained by the target UE from the PHYConfig list according to the index number of the available public resource.   
     
     
         17 . The UE according to  claim 16 , wherein:
 the processor, is further configured to, before the transmitter sends the public resource request to the base station, enter into the desynchronization state according to medium access control (MAC) layer control information or a radio resource control protocol (RRC) message.   
     
     
         18 . The UE according to  claim 16 , wherein:
 the transmitter, is specifically configured to, if accessing through an ordinary preamble (preamble) and accessing successfully, send to the base station a MSG3 message carrying a public resource request.   
     
     
         19 . The UE according to  claim 16 , wherein the public resource configuration further comprises access resources (RACH resources),
 the transmitter, is further specifically configured to, if accessing through a dedicated preamble for public resource contention, send to the base station access information carrying the dedicated preamble for the public resource contention, wherein the dedicated preamble for the public resource contention is selected from the RACH resources;   the receiver, is specifically configured to receive an extended access response (RAR) sent by the base station, wherein the extended RAR carries the index number of the available public resource.   
     
     
         20 . The UE according to  claim 16 , wherein:
 the receiver, is further configured to, after receiving the public resource configuration sent by the base station through the broadcast channel, when the base station needs to transmit downlink data and the available public resource exists, receive the index number of the available public resource and a physical downlink control channel order (PDCCH order) sent by the base station;   the receiver, is further configured to, if the PDCCH order carries a dedicated access resource, receive the downlink data through the available public resource according to a schedule of the base station,   wherein the available public resource is obtained from the PHYConfig list according to the index number of the available public resource; or   the transmitter, is further configured to, if the PDCCH order received by the receiver does not carry the dedicated access resource, then after accessing successfully, send an identifier C-RNTI of the target UE to the base station;   the receiver, is further configured to, after the transmitter sends the identifier C-RNTI of the target UE to the base station, receive the downlink data through the available public resource according to an indication of the base station.