Method and device for indicating sub-band configuration, and method and device for accessing sub-band
AssigneeSpreadtrum Communications (Shanghai) Co., Ltd.
InventorsHuayu Zhou, Weijie Xu
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Abstract
Method and device for indicating sub-band configuration, and method and device for accessing sub-band are provided. The method for indicating sub-band configuration includes: configuring a broadcast channel in a basic sub-band which is configured with a synchronization signal; and indicating sub-band configuration of at least one non-basic sub-band directly or indirectly through a master information block carried by the broadcast channel, wherein the sub-band configuration of the non-basic sub-band is used for user equipment accessing the non-basic sub-band. UE may access different sub-bands efficiently with relatively high flexibility and relatively few signaling overhead.
Claims20
A method for indicating sub-band configuration, comprising:
- configuring a broadcast channel in a basic sub-band which is configured with a synchronization signal;
- and
- indicating sub-band configuration of at least one non-basic sub-band through a master information block carried by the broadcast channel, wherein the sub-band configuration of the at least one non-basic sub-band is used for user equipment to initiate a random access procedure on the at least one non-basic sub-band,
- wherein indicating sub-band configuration of the at least one non-basic sub-band through the master information block carried by the broadcast channel comprises:
- indicating a second offset between a resource position of a common control channel and a resource position of the synchronization signal through the master information block carried by the broadcast channel;
- and indicating sub-band configuration of the at least one non-basic sub-band through a system information block carried by the common control channel.
A method for accessing a sub-band, comprising:
- detecting a synchronization signal and a broadcast channel in a basic sub-band to obtain a master information block carried by the broadcast channel, and camping on a cell according to the synchronization signal;
- decoding the master information block carried by the broadcast channel to determine sub-band configuration of at least one non-basic sub-band;
- and
- accessing the at least one non-basic sub-band based on the sub-band configuration of the at least one non-basic sub-band to initiate a random access procedure on the at least one non-basic sub-band,
- wherein decoding the master information block carried by the broadcast channel to determine sub-band configuration of at least one non-basic sub-band comprises:
- decoding the master information block carried by the broadcast channel to obtain a second offset between a resource position of a common control channel and a resource position of the synchronization signal;
- decoding the common control channel to determine a system information block carried by the common control channel;
- and decoding the system information block carried by the common control channel to determine the sub-band configuration of the at least one non-basic sub-band.
A device for accessing a sub-band, comprising:
- a detecting circuitry configured to detect a synchronization signal and a broadcast channel in a basic sub-band to obtain a master information block carried by the broadcast channel, and camp on a cell according to the synchronization signal;
- a decoding circuitry configured to decode the master information block carried by the broadcast channel to determine sub-band configuration of at least one non-basic sub-band;
- and
- an accessing circuitry configured to access the at least one non-basic sub-band based on the sub-band configuration of the at least one non-basic sub-band to initiate a random access procedure on the at least one non-basic sub-band,
- wherein the decoding circuitry comprises:
- a broadcast channel decoding sub-circuitry configured to decode the master information block carried by the broadcast channel to obtain a second offset between a resource position of a common control channel and a resource position of the synchronization signal;
- a common control channel decoding sub-circuitry configured to decode the common control channel to determine a system information block carried by the common control channel;
- and
- a sub-band configuration determining sub-circuitry configured to decode the system information block carried by the common control channel to determine the sub-band configuration of the at least one non-basic sub-band.
Dependencies are inferred from the claim text.