Random access response method and device, base station and user equipment
AssigneeDatang Mobile Communications Equipment Co., Ltd.
InventorLi Chen
Life of this patent
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Abstract
A random access response method, a random access response device, a base station and UE are provided. The method includes: transmitting a random access response message to UE, where a medium access control protocol data unit (MAC PDU) of the random access response message includes at least one medium access control sub-protocol data unit (MAC subPDU), each MAC subPDU includes an MAC subheader and possibly a medium access control random access response (MAC RAR) corresponding to the MAC subheader; in case that there are at least two MAC subPDUs, the at least two MAC subPDUs are sequentially arranged in the MAC PDU.
Claims20
A random access response method, applied to a base station, comprising:
- transmitting a random access response message to user equipment (UE), wherein a medium access control protocol data unit (MAC PDU) of the random access response message comprises a medium access control sub-protocol data unit (MAC subPDU), the MAC subPDU comprises an MAC subheader and a medium access control random access response (MAC RAR) corresponding to and immediately following the MAC subheader or comprises only an MAC subheader;
- wherein the MAC subPDU comprising only the MAC subheader is an MAC subPDU comprising only an MAC subheader for responding to an Msg1 based system information request or is an MAC subPDU comprising only an MAC subheader comprising a back off indicator (BI);
- wherein, in case that the MAC PDU comprises at least two MAC subPDUs, the at least two MAC subPDUs are sequentially arranged in the MAC PDU;
- the MAC subPDU comprising only the MAC subheader comprising the BI is arranged before other MAC subPDUs, the MAC subPDU comprising only the MAC subheader for responding to the Msg1 based system information request is located at a predetermined position of the MAC PDU of the random access response message.
A random access response method, applied to user equipment (UE), comprising:
- receiving a random access response message transmitted by a base station, wherein a medium access control protocol data unit (MAC PDU) of the random access response message comprises a medium access control sub-protocol data unit (MAC subPDU), the MAC subPDU comprises an MAC subheader and a medium access control random access response (MAC RAR) corresponding to and immediately following the MAC subheader or comprises only an MAC subheader;
- wherein the MAC subPDU comprising only the MAC subheader is an MAC subPDU comprising only an MAC subheader for responding to an Msg1 based system information request or is an MAC subPDU comprising only an MAC subheader comprising a back off indicator (BI);
- wherein, in case that the MAC PDU comprises at least two MAC subPDUs, the at least two MAC subPDUs are sequentially arranged in the MAC PDU;
- the MAC subPDU comprising only the MAC subheader comprising the BI is arranged before other MAC subPDUs, the MAC subPDU comprising only the MAC subheader for responding to the Msg1 based system information request is located at a predetermined position of the MAC PDU of the random access response message.
Dependencies are inferred from the claim text.