Supporting random access and paging procedures for reduced capability WTRUs in an LTE system
First Claim
1. A method implemented by a wireless transmit/receive unit (WTRU), the method comprising:
- receiving a physical downlink control channel (PDCCH) order, the PDCCH order indicating that the WTRU should initiate a random access procedure, the PDCCH order further indicating a coverage enhancement (CE) level to be used for the random access procedure;
transmitting a preamble using a physical random access channel (PRACH) resource based on the received PDCCH order;
andrepeating the preamble, wherein the number of repetitions of the preamble is based on the CE level.
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Accused Products
Abstract
A wireless transmit/receive unit (WTRU) may transmit a preamble using a physical random access channel (PRACH) and determine a location of a random access response (RAR) based on a parameter of the PRACH. The location may include a subframe and/or a frequency resource on which the RAR is transmitted. The RAR may be received at the location. A device may receive a preamble using a PRACH associated with a coverage enhancement (CE) level and/or a CE mode of a WTRU. The device may determine a location of an RAR based on a parameter of the PRACH. The location may include a subframe and/or a frequency resource on which the RAR is to be transmitted. The device may determine a number of repetitions of the RAR to transmit based on the CE level or CE mode. The RAR may be transmitted at the location with the determined number of repetitions.
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Citations
25 Claims
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1. A method implemented by a wireless transmit/receive unit (WTRU), the method comprising:
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receiving a physical downlink control channel (PDCCH) order, the PDCCH order indicating that the WTRU should initiate a random access procedure, the PDCCH order further indicating a coverage enhancement (CE) level to be used for the random access procedure; transmitting a preamble using a physical random access channel (PRACH) resource based on the received PDCCH order; and repeating the preamble, wherein the number of repetitions of the preamble is based on the CE level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for providing communication in a network, the method comprising:
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receiving a preamble using a physical random access channel (PRACH) resource associated with a first coverage enhancement (CE) level of a wireless transmit/receive unit (WTRU) from which the preamble is received; determining the first CE level of the WTRU based on at least one of the preamble or the PRACH resource; and providing CE information regarding the WTRU to a mobility management entity (MME) device. - View Dependent Claims (14, 15, 16)
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17. A wireless transmit/receive unit (WTRU) comprising:
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a transceiver; and a processor to execute instructions to cause the WTRU to receive a physical downlink control channel (PDCCH) order, the PDCCH order indicating that the WTRU should initiate a random access procedure, and the PDCCH order further indicating a coverage enhancement (CE) level to be used for the random access procedure; transmit a preamble using a physical random access channel (PRACH) resource based on the received PDCCH order; and repeat the preamble, wherein the number of repetitions of the preamble is based on the CE level. - View Dependent Claims (18, 19, 20, 21, 22)
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23. An evolved node B (eNB) device comprising:
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a transceiver; and a processor to execute instructions to cause the eNB device to receive a preamble using a physical random access channel (PRACH) resource associated with a first coverage enhancement (CE) level of a wireless transmit/receive unit (WTRU) from which the preamble is received; determine the first CE level based on at least one of the preamble or the PRACH resource; and provide CE information regarding the WTRU to a mobility management entity (MME) device. - View Dependent Claims (24, 25)
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Specification