Network node, user equipment and methods therein for transmitting and receiving control information
First Claim
1. A method, in a network node, for transmitting control information to a user equipment (UE) in a telecommunications system, wherein the control information to is scheduled in time intervals of a downlink shared data channel, and wherein the control information is allocated resource elements in resource blocks of a time-frequency Orthogonal Frequency Division Multiplexing (OFDM) grid in the time intervals in which the control information is scheduled, the method comprising:
- determining a set of UEs for which control information is scheduled in a time interval;
selecting, for a UE in the determined set of UEs, at least one Physical Scheduling Indication Group (PSIG) to which the UE is assigned, wherein the selecting comprises creating one or more group assignments, each of which assigns the UE to a PSIG;
selecting a sequence from a set of orthogonal sequences to comprise a group signal corresponding to the at least one selected PSIG;
preparing the group signal as a Physical Scheduling Indication Channel (PSICH) signal by allocating resource elements in the resource blocks of the time-frequency OFDM grid in the time interval of the downlink shared data channel to the group signal;
transmitting the prepared group signal in the allocated resource elements in the time interval to the UE, to enable the UE to determine whether the control information that is allocated resource elements in the time interval is intended for the UE; and
sending a configuration message to the UE to configure settings of the UE such that the UE is able to determine presence of a PSICH signal in control information transmissions received from the network node.
2 Assignments
0 Petitions
Accused Products
Abstract
A method in a network node for transmitting control information to a user equipment in a telecommunications system is provided. The control information is scheduled in time intervals of a downlink shared data channel, wherein the control information is allocated resource elements in resource blocks of a time-frequency Orthogonal Frequency Division Multiplexing, OFDM, grid in the time intervals in which the control information is scheduled. The network node determines for a time interval, a set of user equipments for which control information is scheduled in the time interval. Also, it selects for a user equipment comprised in the determined set of user equipments, at least one group of user equipments amongst one or more groups of user equipments to which the user equipment is assigned. It also prepares a group signal corresponding to the selected one group of user equipments by allocating resource elements in the resource blocks of the time interval to the group signal. Furthermore, the network node transmits the prepared group signal in the allocated resource element in the time interval to the user equipment such that the user equipment is enabled to determine whether the control information that is allocated resource elements in the time interval is intended for the user equipment or not.
A network node, a method in user equipment and a user equipment are also provided.
10 Citations
30 Claims
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1. A method, in a network node, for transmitting control information to a user equipment (UE) in a telecommunications system, wherein the control information to is scheduled in time intervals of a downlink shared data channel, and wherein the control information is allocated resource elements in resource blocks of a time-frequency Orthogonal Frequency Division Multiplexing (OFDM) grid in the time intervals in which the control information is scheduled, the method comprising:
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determining a set of UEs for which control information is scheduled in a time interval; selecting, for a UE in the determined set of UEs, at least one Physical Scheduling Indication Group (PSIG) to which the UE is assigned, wherein the selecting comprises creating one or more group assignments, each of which assigns the UE to a PSIG; selecting a sequence from a set of orthogonal sequences to comprise a group signal corresponding to the at least one selected PSIG; preparing the group signal as a Physical Scheduling Indication Channel (PSICH) signal by allocating resource elements in the resource blocks of the time-frequency OFDM grid in the time interval of the downlink shared data channel to the group signal; transmitting the prepared group signal in the allocated resource elements in the time interval to the UE, to enable the UE to determine whether the control information that is allocated resource elements in the time interval is intended for the UE; and sending a configuration message to the UE to configure settings of the UE such that the UE is able to determine presence of a PSICH signal in control information transmissions received from the network node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 29, 30)
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15. A network node for transmitting control information to a user equipment (UE) in a telecommunications system, wherein the control information is scheduled in time intervals of a downlink shared data channel, and wherein the control information is allocated resource elements in resource blocks of a time-frequency Orthogonal Frequency Division Multiplexing (OFDM) grid in the time intervals in which the control information is scheduled, the network node comprising processing circuitry configured to:
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determine a set of UEs for which control information is scheduled in a time interval; select, for a UE included in the determined set of UEs, at least one Physical Scheduling Indication Group (PSIG) to which the UE is assigned; create one or more group assignments, each of which assigns the UE to a PSIG; select a sequence from a set of orthogonal sequences to comprise a group signal corresponding to the at least one selected PSIG; prepare the group signal as a Physical Scheduling Indication Channel (PSICH) signal group by allocating resource elements in the resource blocks of the time-frequency OFDM grid in the time interval of the downlink shared data channel to the group signal; transmit the prepared group signal in the allocated resource elements in the time interval to the UE, to enable the UE to determine whether the control information that is allocated resource elements in the time interval is intended for the UE; and send a configuration message to the UE to configure settings of the UE such that the UE is able to determine presence of a PSICH signal in control information transmissions received from the network node. - View Dependent Claims (16, 17, 18, 19)
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20. A method, in a user equipment (UE), for receiving control information from a network node in a telecommunications system, wherein the control information is scheduled in time intervals of a downlink shared data channel, and wherein the control information is allocated resource elements in resource blocks of a time-frequency Orthogonal Frequency Division Multiplexing (OFDM) grid in the time intervals in which the control information is scheduled, the method comprising:
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receiving a control information transmission comprising a prepared group signal and control information in a time interval in which the UE is expecting a control information transmission from the network node, wherein the prepared group signal is a Physical Scheduling Indication Channel (PSICH) signal comprising at least one sequence selected by the network node from a set of orthogonal sequences; receiving one or more group assignments, each of which indicates to the UE a Physical Scheduling Indication Group (PSIG) to which the UE is assigned by the network node; receiving a configuration message from the network node to configure the UE settings such that the UE is able to determine presence of a PSICH signal in received control information transmissions from the network node; and terminating, for the remainder of the time interval, the receiving of the control information transmission responsive to a determination that the prepared group signal does not correspond to one or more PSIGs to which the UE is assigned, and that the control information that is allocated resource elements in the time interval is therefore not intended for the UE. - View Dependent Claims (21, 22, 23, 27)
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24. A user equipment (UE) for receiving control information from a network node in a telecommunications system, wherein the control information is scheduled in time intervals of a downlink shared data channel, and wherein the control information is allocated resource elements in resource blocks of a time-frequency Orthogonal Frequency Division Multiplexing (OFDM) grid in the time intervals in which the control information is scheduled, the user equipment comprising processing circuitry configured to:
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receive a control information transmission comprising a prepared group signal in a time interval in which the UE is expecting a control information transmission from the network node, wherein the selected group signal is a Physical Scheduling Indication Channel (PSICH) signal comprising at least one sequence selected by the network node from a set of orthogonal sequences; receive one or more group assignments, each of which indicates to the UE a Physical Scheduling Indication Group (PSIG) to which the UE is assigned by the network node; receive a configuration message from the network node to configure the UE settings such that the UE is able to determine presence of a PSICH signal in received control information transmissions from the network node; terminate, for the remainder of the time interval, the receiving of the control information transmission responsive to a determination that the prepared group signal does not correspond to one or more PSIGs to which the UE is assigned, and that the control information that is allocated resource elements in the time interval is therefore not intended for the user equipment. - View Dependent Claims (25, 26, 28)
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Specification