Methods and devices relating to downlink assignments
First Claim
1. A method in a first communication device for receiving control information and data over a radio channel from a second communication device the method comprising the steps of:
- receiving part of a subframe over the radio channel,detecting that the subframe is a subframe having a downlink assignment intended for the first communication device, anddetermining whether one downlink assignment, for data being sent from the second communication device before the subframe, has been missed by analysing an indicator associated with the subframe;
the indicator, comprising a polynomial used to generate a Cyclic Redundancy Check (CRC) for the assigned subframe on one of a Physical Downlink Channel (PDCH), a Physical Downlink shared Channel, (PDSCH) and a Physical Downlink Control Channel (PDCCH), providing information about previous downlink subframes with downlink assignments intended for the first communication device, the first communication device retrieving the polynomial during the decoding of the data or control information.
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Accused Products
Abstract
The invention relates to a method in a first communication device of receiving control information over a radio channel from a second communication device. The first communication device receives a subframe over the radio channel, and determines whether the subframe is a downlink subframe with downlink assignment intended for the first communication device by reading data in the subframe. That being the case, the first communication device decodes data within the subframe, and determines whether any data packet being sent from the second communication device before the subframe has been missed by analyzing an indicator associated to the subframe in the data. The indicator provides knowledge about previous downlink subframes with downlink assignment intended for the first communication device.
25 Citations
27 Claims
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1. A method in a first communication device for receiving control information and data over a radio channel from a second communication device the method comprising the steps of:
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receiving part of a subframe over the radio channel, detecting that the subframe is a subframe having a downlink assignment intended for the first communication device, and determining whether one downlink assignment, for data being sent from the second communication device before the subframe, has been missed by analysing an indicator associated with the subframe; the indicator, comprising a polynomial used to generate a Cyclic Redundancy Check (CRC) for the assigned subframe on one of a Physical Downlink Channel (PDCH), a Physical Downlink shared Channel, (PDSCH) and a Physical Downlink Control Channel (PDCCH), providing information about previous downlink subframes with downlink assignments intended for the first communication device, the first communication device retrieving the polynomial during the decoding of the data or control information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method in a second communication device for transmitting control information and data over a radio channel to a first communication device in a subframe with a downlink assignment intended for the first communication device, the method comprising the steps of:
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adding an indicator, comprising a polynomial used to generate a Cyclic Redundancy Check (CRC) for the assigned subframe on one of a Physical Downlink Channel (PDCH), a Physical Downlink shared Channel, (PDSCH) and a Physical Downlink Control Channel (PDCCH), to the subframe providing information about previous subframes with a downlink assignment intended for the first communication device in the control information, wherein the indicator shows that the downlink assignment in the previous subframes was missed, and transmitting the control information and data with the subframe to the first communication device, the first communication device retrieving the polynomial during the decoding of the data or control information. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A first communication device for receiving control information and data over a radio channel from a second communication device the first communication device comprising
a receiving arrangement adapted to receive a subframe of a radio frame, and a control unit arranged to determine whether the subframe is a subframe with downlink assignment intended for the first communication device the control unit being further arranged to determine whether any downlink assignment for data has been missed, that has been scheduled in and sent from the second communication device prior to the subframe, by analysing an indicator comprising a polynomial used to generate a Cyclic Redundancy Check (CRC) for the assigned subframe on one of a Physical Downlink Channel (PDCH), a Physical Downlink shared Channel, (PDSCH) and a Physical Downlink Control Channel (PDCCH), the indicator associated with the subframe and being arranged to provide information of a previous subframe with downlink assignments intended for the first communication device, the first communication device retrieving the polynomial during the decoding of the data or control information.
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27. A second communication device for transmitting control information and data with a subframe comprising a downlink assignment intended for a first communication device of a radio frame over a radio channel to the first communication device, the second communication device comprising:
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a control unit arranged to add an indicator, comprising a polynomial used to generate a Cyclic Redundancy Check (CRC) for the assigned subframe on one of a Physical Downlink Channel (PDCH), a Physical Downlink shared Channel, (PDSCH) and a Physical Downlink Control Channel (PDCCH), to the subframe arranged to provide information of previous subframes with a downlink assignment intended for the first communication device in the control information to the first communication device, the first communication device retrieving the polynomial during the decoding of the data or control information, wherein the indicator indicates the downlink assignment of the previous subframes was missed, and a transmitting arrangement for transmitting the control information and data with the subframe to the first communication device.
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Specification