Evolved multimedia broadcast multicast service on enhanced component carriers
First Claim
1. A method of communication, comprising:
- transmitting a set of resources allocated for an evolved multimedia broadcast multicast service (eMBMS) burst to a wireless device, the set of resources based at least in part on a reduced symbol period, the reduced symbol period corresponding to an enhanced component carrier (eCC) configuration and is based at least in part on an extended cyclic prefix (CP) length; and
transmitting the eMBMS burst employing the set of resources, a first symbol period of the set of resources being associated with a cell-specific reference signal (CRS) preamble and a second symbol period of the set of resources being a unicast control symbol period, wherein a control message in the unicast control symbol period indicates a unicast data transmission utilizing the set of resources,wherein the reduced symbol period is based at least in part on the extended CP length corresponding to a bandwidth range associated with the eMBMS and a second reduced symbol period is based at least in part on a non-extended CP length corresponding to a bandwidth range associated with the unicast data transmission.
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Abstract
Methods, systems, and devices are described for evolved multimedia broadcast multicast service (eMBMS) utilizing enhanced component carriers (eCCs). A wireless system may send unicast data using resources allocated for multicast transmissions (e.g., eMBMS transmissions). The presence of unicast data in a transmission time interval (TTI) scheduled for multicast transmission may be indicated by a control region within the TTI. A UE may monitor the control region to identify the presence of unicast information. A TTI scheduled for multicast transmission may also include reference signals to aid in the demodulation of multicast or unicast data. In some cases, the reference signals may be front-loaded at the beginning or embedded within the TTI. The embedded reference signals may be configured based on the type of data carried by the TTI scheduled for multicast transmission, or by length of the cyclic prefix used by the TTI scheduled for multicast transmission.
15 Citations
25 Claims
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1. A method of communication, comprising:
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transmitting a set of resources allocated for an evolved multimedia broadcast multicast service (eMBMS) burst to a wireless device, the set of resources based at least in part on a reduced symbol period, the reduced symbol period corresponding to an enhanced component carrier (eCC) configuration and is based at least in part on an extended cyclic prefix (CP) length; and transmitting the eMBMS burst employing the set of resources, a first symbol period of the set of resources being associated with a cell-specific reference signal (CRS) preamble and a second symbol period of the set of resources being a unicast control symbol period, wherein a control message in the unicast control symbol period indicates a unicast data transmission utilizing the set of resources, wherein the reduced symbol period is based at least in part on the extended CP length corresponding to a bandwidth range associated with the eMBMS and a second reduced symbol period is based at least in part on a non-extended CP length corresponding to a bandwidth range associated with the unicast data transmission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for communication, comprising:
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means for transmitting a set of resources allocated for an evolved multimedia broadcast multicast service (eMBMS) burst to a wireless device, the set of resources based at least in part on a reduced symbol period, the reduced symbol period corresponding to an enhanced component carrier (eCC) configuration and is based at least in part on an extended cyclic prefix (CP) length; and means for transmitting the eMBMS burst employing the set of resources, a first symbol period of the set of resources being associated with a cell-specific reference signal (CRS) preamble and a second symbol period of the set of resources being a unicast control symbol period, wherein a control message in the unicast control symbol period indicates a unicast data transmission utilizing the set of resources, wherein the reduced symbol period is based at least in part on the extended CP length corresponding to a bandwidth range associated with the eMBMS and a second reduced symbol period is based at least in part on a non-extended CP length corresponding to a bandwidth range associated with the unicast data transmission.
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14. An apparatus for communication, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory;
wherein the instructions are executable by the processor to cause the apparatus to;transmit a set of resources allocated for an evolved multimedia broadcast multicast service (eMBMS) burst to a wireless device, the set of resources based at least in part on a reduced symbol period, the reduced symbol period corresponding to an enhanced component carrier (eCC) configuration and is based at least in part on an extended cyclic prefix (CP) length; and transmit the eMBMS burst employing the set of resources, a first symbol period of the set of resources being associated with a cell-specific reference signal (CRS) preamble and a second symbol period of the set of resources being a unicast control symbol period, wherein a control message in the unicast control symbol period indicates a unicast data transmission utilizing the set of resources, wherein the reduced symbol period is based at least in part on the extended CP length corresponding to a bandwidth range associated with the eMBMS and a second reduced symbol period is based at least in part on a non-extended CP length corresponding to a bandwidth range associated with the unicast data transmission. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A non-transitory computer-readable medium storing code for communication at a wireless device, the code comprising instructions executable by a processor to:
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transmit a set of resources allocated for an evolved multimedia broadcast multicast service (eMBMS) burst to a wireless device, the set of resources based at least in part on a reduced symbol period, the reduced symbol period corresponding to an enhanced component carrier (eCC) configuration and is based at least in part on an extended cyclic prefix (CP) length; and transmit the eMBMS burst employing the set of resources, a first symbol period of the set of resources being associated with a cell-specific reference signal (CRS) preamble and a second symbol period of the set of resources being a unicast control symbol period, wherein a control message in the unicast control symbol period indicates a unicast data transmission utilizing the set of resources, wherein the reduced symbol period is based at least in part on the extended CP length corresponding to a bandwidth range associated with the eMBMS and a second reduced symbol period is based at least in part on a non-extended CP length corresponding to a bandwidth range associated with the unicast data transmission.
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Specification