Random access procedure with enhanced coverage
First Claim
1. A method for use by a user equipment wireless communication terminal in communicating with a base station of a radio access network of a wireless communication system, comprising:
- (a) providing for transmission over a random access channel of the wireless communication system a message burst preamble, and including a signature with the preamble;
(b) receiving from the base station in response one or more messages indicating an acknowledgment of having received the preamble and providing a preamble identifier and a resource allocation of a shared channel; and
(c) providing a message burst for transmission on the shared channel according to the resource allocation, but not until receiving the messages indicating the acknowledgment and providing the resource allocation, and including an address in the message burst for use in identifying the user equipment.
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Accused Products
Abstract
A random access procedure for use by a UE wireless communication terminal in communicating with a base station (or Node-B or eNB) of a radio access network, and in particular a E-UTRA network. A random access preamble is sent by the UE via RACH separate and prior to a random access message burst, which is sent on SCH but not until the UE receives one or more messages indicating an acknowledgment of the preamble and providing an allocation on SCH for use in transmitting the message burst, and also providing a preamble identifier, which the radio access network can then use to request retransmission of the message burst if necessary.
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Citations
47 Claims
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1. A method for use by a user equipment wireless communication terminal in communicating with a base station of a radio access network of a wireless communication system, comprising:
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(a) providing for transmission over a random access channel of the wireless communication system a message burst preamble, and including a signature with the preamble;
(b) receiving from the base station in response one or more messages indicating an acknowledgment of having received the preamble and providing a preamble identifier and a resource allocation of a shared channel; and
(c) providing a message burst for transmission on the shared channel according to the resource allocation, but not until receiving the messages indicating the acknowledgment and providing the resource allocation, and including an address in the message burst for use in identifying the user equipment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for use by a user equipment wireless communication terminal in communicating with a base station of a radio access network of a wireless communication system, comprising a processor configured to:
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(a) provide for transmission over a random access channel of the wireless communication system a message burst preamble, and including a signature with the preamble;
(b) receive from the base station in response one or more messages indicating an acknowledgment of having received the preamble and providing a preamble identifier and a resource allocation of a shared channel; and
(c) provide a message burst for transmission on the shared channel according to the resource allocation, but not until receiving the messages indicating the acknowledgment and providing the resource allocation, and to include an address in the message burst for use in identifying the user equipment. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for use by a base station of a radio access network of a wireless communication system in communicating with a user equipment wireless communication terminal, comprising:
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(a) receiving over a random access channel of the wireless communication system a message burst preamble and a signature; and
(b) providing for transmission one or more messages in response to the message burst preamble, wherein the one or more messages indicate an acknowledgment of having received the preamble and include a preamble identifier and a resource allocation of at least a portion of a shared channel; and
(c) receiving a message burst on the shared channel according to the resource allocation, decoding the message burst, and obtaining an address in the message burst for use in identifying the user equipment. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. An apparatus for use by a base station of a radio access network of a wireless communication system in communicating with a user equipment wireless communication terminal, comprising a processor configured to:
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(a) receive over a random access channel of the wireless communication system a message burst preamble and a signature; and
(b) provide for transmission one or more messages in response to the message burst preamble, wherein the one or more messages indicate an acknowledgment of having received the preamble and include a preamble identifier and a resource allocation of at least a portion of a shared channel; and
(c) receive a message burst on the shared channel according to the resource allocation, decode the message burst, and obtain an address from the message burst for use in identifying the user equipment. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification