Reference signal transmission and averaging for wireless communications
First Claim
1. A method for wireless communication, comprising:
- receiving, at a user equipment (UE), a downlink grant for two or more transmission time intervals, wherein the downlink grant indicates that reference signals transmitted in the two or more transmission time intervals are combinable with each other, wherein the reference signals are transmitted using resources associated with a group identification or a UE identification;
receiving, at the UE, a first transmission during a first transmission time interval and a second transmission during a second transmission time interval, wherein the second transmission time interval follows the first transmission time interval;
determining that a first reference signal received during the first transmission time interval and a second reference signal received during the second transmission time interval can be combined based at least in part on the downlink grant;
combining, at the UE, the first reference signal from the first transmission time interval and the second reference signal from the second transmission time interval included in the transmissions in accordance with the determining; and
decoding, based at least in part on the combination of the first reference signal and the second reference signal, data from the first transmission time interval, data from the second transmission time interval, or a combination thereof.
1 Assignment
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Accused Products
Abstract
Techniques are provided for combining different types of reference signals. A wireless communications network may be configured to allow a user equipment (UE) to combine multiple demodulation reference signals (DM-RSs) to support demodulation of a physical downlink shared channel (PDSCH), and/or other downlink transmissions, transmitted from a base station to the UE. The base station may provide explicit signaling that reference signals transmitted in two or more transmission time intervals may be combined, or a determination that reference signals transmitted in two or more transmission time intervals may be combined may be made implicitly based on system configuration and previous transmissions. Based on the explicit signaling and/or implicit determination, a UE may combine reference signals included in each of two or more reference signals for use in demodulation of downlink transmissions.
20 Citations
28 Claims
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1. A method for wireless communication, comprising:
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receiving, at a user equipment (UE), a downlink grant for two or more transmission time intervals, wherein the downlink grant indicates that reference signals transmitted in the two or more transmission time intervals are combinable with each other, wherein the reference signals are transmitted using resources associated with a group identification or a UE identification; receiving, at the UE, a first transmission during a first transmission time interval and a second transmission during a second transmission time interval, wherein the second transmission time interval follows the first transmission time interval; determining that a first reference signal received during the first transmission time interval and a second reference signal received during the second transmission time interval can be combined based at least in part on the downlink grant; combining, at the UE, the first reference signal from the first transmission time interval and the second reference signal from the second transmission time interval included in the transmissions in accordance with the determining; and decoding, based at least in part on the combination of the first reference signal and the second reference signal, data from the first transmission time interval, data from the second transmission time interval, or a combination thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for wireless communication, comprising:
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means for receiving, at the apparatus, a downlink grant for two or more transmission time intervals, wherein the downlink grant indicates that reference signals transmitted in the two or more transmission time intervals are combinable with each other, wherein the reference signals are transmitted using resources associated with a group identification or a user equipment (UE) identification; means for receiving, at the apparatus, a first transmission during a first transmission time interval and a second transmission during a second transmission time interval, wherein the second transmission time interval follows the first transmission time interval; means for determining that a first reference signal received during the first transmission time interval and a second reference signal received during the second transmission time interval can be combined based at least in part on the downlink grant; means for combining, at the apparatus, the first reference signal from the first transmission time interval and the second reference signal from the second transmission time interval included in the transmissions in accordance with the determining; and means for decoding, based at least in part on the combination of the first reference signal and the second reference signal, data from the first transmission time interval, data from the second transmission time interval, or a combination thereof.
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15. An apparatus for wireless communication, comprising:
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a processor; memory coupled with the processor; and instructions stored in the memory, the instructions being executable by the processor to; receive, at the apparatus, a downlink grant for two or more transmission time intervals, wherein the downlink grant indicates that reference signals transmitted in the two or more transmission time intervals are combinable with each other, wherein the reference signals are transmitted using resources associated with a group identification or a user equipment (UE) identification, wherein the second transmission time interval follows the first transmission time interval; receive, at the apparatus, a first transmission during a first transmission time interval and a second transmission during a second transmission time interval; determine that a first reference signal received during the first transmission time interval and a second reference signal received during the second transmission time interval can be combined based at least in part on the downlink grant; combine, at the apparatus, the first reference signal from the first transmission time interval and the second reference signal from the second transmission time interval included in the transmissions in accordance with the determining; and decode, based at least in part on the combination of the first reference signal and the second reference signal, data from the first transmission time interval, data from the second transmission time interval, or a combination thereof. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A non-transitory computer-readable medium storing a computer-executable code for wireless communication, the code executable by a processor to:
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receive, at an apparatus, a downlink grant for two or more transmission time intervals, wherein the downlink grant indicates that reference signals transmitted in the two or more transmission time intervals are combinable with each other, wherein the reference signals are transmitted within resources associated with a group identification or a user equipment (UE) identification; receive, at the apparatus, a first transmission during a first transmission time interval and a second transmission during a second transmission time interval, wherein the second transmission time interval follows the first transmission time interval; determine that a first reference signal received during the first transmission time interval and a second reference signal received during the second transmission time interval can be combined based at least in part on the downlink grant; combine, at the apparatus, the first reference signal from the first transmission time interval and the second reference signal from the second transmission time interval included in the transmissions in accordance with the determining; and decode, based at least in part on the combination of the first reference signal and the second reference signal, data from the first transmission time interval, data from the second transmission time interval, or a combination thereof.
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Specification