Method and apparatus for sending and receiving downlink control channel

  • US 10,477,532 B2
  • Filed: 07/27/2016
  • Issued: 11/12/2019
  • Est. Priority Date: 08/11/2015
  • Status: Active Grant
First Claim
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1. A method for sending a downlink control channel, applied to a base station, the method comprising:

  • determining one or more Search Space (SS) positions according to at least one of a coverage level or a message type, and sending a downlink control channel in an SS,the coverage level comprising a non-coverage enhancement level CE0 and coverage enhancement levels CE1, CE2 and CE3, the message type comprising at least one of Random Access Response (RAR), Paging or Transmission Power Control (TPC), the SS comprising at least one of a Common Search Space (CSS) or a User Equipment (UE) dedicated SS, and the one or more SS positions comprising at least one of a narrowband/frequency domain position or a time domain position;

    wherein determining an SS position according to a coverage level comprises;

    determining that CE1, CE2 and CE3 use respective SS positions;

    ordetermining that CE1, CE2 and CE3 use the same SS position;

    wherein determining an SS position according to a coverage level further comprises;

    determining that, when CE1, CE2 and CE3 use respective SS positions, CE0 uses a fourth SS position or shares the same SS position with one of CE1, CE2 and CE3; and

    determining that, when CE1, CE2 and CE3 use the same SS position, CE0 uses a fourth SS position or shares the same SS position with CE1, CE2 and CE3;

    wherein Physical Resource Block (PRB) resources contained in any two different SS positions are at least partially different.

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