Methods and systems for downlink transmit power control command transmission
First Claim
1. A method for communicating transmit power control (TPC) commands, the method comprising:
- receiving, by a user equipment (UE), a downlink TPC command from a serving base station during a first downlink timeslot in a sequence of downlink timeslots;
transmitting, by the UE, an uplink TPC command according to the downlink TPC command over a first uplink timeslot in a sequence of uplink timeslots, the first uplink timeslot being mapped to the first downlink timeslot in which the downlink TPC command was received from the serving base station; and
transmitting, by the UE, an alternating pattern of TPC commands over other uplink timeslots in the sequence of uplink timeslots.
0 Assignments
0 Petitions
Accused Products
Abstract
Backwards compatibility may be achieved by transmitting an alternating pattern of uplink TPC commands in uplink timeslots. In one example, a served user equipment (UE) receives a downlink TPC command from a serving base station during a downlink timeslot in a sequence of downlink timeslots, and generates an uplink TPC command based on a received power level of the downlink TPC command. The served UE may then transmit the uplink TPC command in an uplink timeslot mapped to the downlink timeslot in which the downlink TPC command was received, as well as transmit an alternating pattern of uplink TPC commands in other uplink timeslots. The alternating pattern of uplink TPC commands may cause a neighboring base station to effectively maintain its transmit power level.
-
Citations
20 Claims
-
1. A method for communicating transmit power control (TPC) commands, the method comprising:
-
receiving, by a user equipment (UE), a downlink TPC command from a serving base station during a first downlink timeslot in a sequence of downlink timeslots; transmitting, by the UE, an uplink TPC command according to the downlink TPC command over a first uplink timeslot in a sequence of uplink timeslots, the first uplink timeslot being mapped to the first downlink timeslot in which the downlink TPC command was received from the serving base station; and transmitting, by the UE, an alternating pattern of TPC commands over other uplink timeslots in the sequence of uplink timeslots. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A user equipment (UE) comprising:
-
a processor; and a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to; receive a downlink TPC command from a serving base station during a first downlink timeslot in a sequence of downlink timeslots; transmit an uplink TPC command according to the downlink TPC command over a first uplink timeslot in a sequence of uplink timeslots, the first uplink timeslot being mapped to the first downlink timeslot in which the downlink TPC command was received from the serving base station; and transmit an alternating pattern of TPC commands over other uplink timeslots in the sequence of uplink timeslots. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
-
18. A method for generating transmit power control (TPC) commands in an uplink Dedicated Physical Control Channel (DPCCH) when a serving radio link is configured with Algorithm 3, the method comprising:
-
receiving, by a user equipment (UE), a downlink TPC command over the serving radio link; transmitting one uplink TPC command corresponding to the downlink TPC command over a slot in which the downlink TPC command is known to be present; and determining that a length of a slot cycle is 3, and based thereon transmitting, over subsequent slots, a pattern of uplink TPC commands that consists of a second TPC command having a value of 0 and a third uplink TPC command having a value of 1.
-
-
19. A method for generating transmit power control (TPC) commands in an uplink Dedicated Physical Control Channel (DPCCH) when a serving radio link is configured with Algorithm 3, the method comprising:
-
receiving, by a user equipment (UE), a downlink TPC command over the serving radio link; transmitting, by the UE, one uplink TPC command corresponding to the downlink TPC command over a slot in which the downlink TPC command is known to be present; and determining that a length of a slot cycle is 5, and based thereon transmitting, over subsequent slots, a pattern of uplink TPC commands that consists of a second TPC command having a value of 0, a third TPC command having a value of 1, a fourth TPC command having a value of 0, and a fifth TPC command having a value of 1. - View Dependent Claims (20)
-
Specification