Method and apparatus for re-synchronizing of temporary UE IDs in a wireless communication system
First Claim
1. A method for wireless communication, comprising:
- sending a random access preamble for random access by a user equipment (UE);
receiving a random access response (RAR) that includes a temporary Cell Radio Network Temporary Identifier (C-RNTI);
using the temporary C-RNTI as a C-RNTI for the UE when a valid C-RNTI is not already available, wherein the valid C-RNTI is a C-RNTI for the UE from prior to performing the random access;
discarding the temporary C-RNTI and using the valid C-RNTI when available; and
sending a transmission after receiving the RAR, the transmission comprising the valid C-RNTI when available or the transmission not comprising C-RNTI information when the valid C-RNTI is not available.
1 Assignment
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Accused Products
Abstract
Methods and apparatuses for re-synchronizing Cell Radio Network Temporary Identifiers (C-RNTIs) in a wireless communication system are disclosed. In an aspect, a random access preamble is sent for random access by a user equipment (UE) and a random access response (RAR) is received that includes a temporary C-RNTI. If the UE already has a valid C-RNTI, a message is sent that includes the valid C-RNTI instead of the temporary C-RNTI as a C-RNTI for the UE. In another aspect, a random access preamble for random access is received and a RAR is sent that includes a temporary C-RNTI. A message is received that includes a valid C-RNTI instead of the temporary C-RNTI as a C-RNTI for a UE if the UE already has the valid C-RNTI.
20 Citations
43 Claims
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1. A method for wireless communication, comprising:
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sending a random access preamble for random access by a user equipment (UE); receiving a random access response (RAR) that includes a temporary Cell Radio Network Temporary Identifier (C-RNTI); using the temporary C-RNTI as a C-RNTI for the UE when a valid C-RNTI is not already available, wherein the valid C-RNTI is a C-RNTI for the UE from prior to performing the random access; discarding the temporary C-RNTI and using the valid C-RNTI when available; and sending a transmission after receiving the RAR, the transmission comprising the valid C-RNTI when available or the transmission not comprising C-RNTI information when the valid C-RNTI is not available. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for wireless communication, comprising:
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at least one processor configured to; send a random access preamble for random access by a user equipment (UE), receive a random access response (RAR) that includes a temporary Cell Radio Network Temporary Identifier (C-RNTI), use the temporary C-RNTI as a C-RNTI for the UE when a valid C-RNTI is not already available, wherein the valid C-RNTI is a C-RNTI for the UE from prior to performing the random access, discard the temporary C-RNTI and using the valid C-RNTI when available, and send a transmission after receiving the RAR, the transmission comprising the valid C-RNTI when available or the transmission not comprising C-RNTI information when the valid C-RNTI is not available; and a memory coupled to the at least one processor. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for wireless communication, comprising:
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means for sending a random access preamble for random access by a user equipment (UE); means for receiving a random access response (RAR) that includes a temporary Cell Radio Network Temporary Identifier (C-RNTI); means for using the temporary C-RNTI as a C-RNTI for the UE when a valid C-RNTI is not already available, wherein the valid C-RNTI is a C-RNTI for the UE from prior to performing the random access; means for discarding the temporary C-RNTI and using the valid C-RNTI when available; and means for sending a transmission after receiving the RAR, the transmission comprising the valid C-RNTI when available or the transmission not comprising C-RNTI information when the valid C-RNTI is not available. - View Dependent Claims (18, 19, 20, 21)
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22. A computer program product, comprising a non-transitory computer-readable medium that includes:
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code for causing at least one computer to send a random access preamble for random access by a user equipment (UE); code for causing the at least one computer to receive a random access response (RAR) that includes a temporary Cell Radio Network Temporary Identifier (C-RNTI); code for causing the at least one computer to use the temporary C-RNTI as a C-RNTI for the UE when a valid C-RNTI is not already available, wherein the valid C-RNTI is a C-RNTI for the UE from prior to performing the random access; code for causing the at least one computer to discard the temporary C-RNTI and using the valid C-RNTI when available; and code for causing the at least one computer to send a transmission after receiving the RAR, the transmission comprising the valid C-RNTI when available or the transmission not comprising C-RNTI information when the valid C-RNTI is not available. - View Dependent Claims (23, 24)
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25. A method for wireless communication, comprising:
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receiving a random access preamble for random access by a user equipment (UE); assigning a temporary Cell Radio Network Temporary Identifier (C-RNTI) to the UE; sending a random access response (RAR) that includes the temporary C-RNTI; receiving a transmission from the UE after sending the RAR, the transmission comprising a valid C-RNTI or the transmission not comprising C-RNTI information, and wherein the valid C-RNTI is a C-RNTI for the UE from prior to performing the random access; using the temporary C-RNTI as a C-RNTI for the UE when the received transmission does not comprise C-RNTI information; and releasing the temporary C-RNTI and using the valid C-RNTI when the received transmission comprises the valid C-RNTI. - View Dependent Claims (26, 27, 28, 29, 30)
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31. An apparatus for wireless communication, comprising:
at least one processor configured to; receive a random access preamble for random access by a user equipment (UE); assign a temporary Cell Radio Network Temporary Identifier (C-RNTI) to the UE; send a random access response (RAR) that includes the temporary C-RNTI; receive a transmission from the UE after sending the RAR, the transmission comprising a valid C-RNTI or the transmission not comprising C-RNTI information, and wherein the valid C-RNTI is a C-RNTI for the UE from prior to performing the random access; use the temporary C-RNTI as a C-RNTI for the UE when the received transmission does not comprise C-RNTI information; and release the temporary C-RNTI and using the valid C-RNTI when the received transmission comprises the valid C-RNTI; and a memory coupled to the at least one processor. - View Dependent Claims (32, 33, 34, 35, 36)
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37. An apparatus for wireless communication, comprising:
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means for receiving a random access preamble for random access by a user equipment (UE); means for assigning a temporary Cell Radio Network Temporary Identifier (C-RNTI) to the UE; means for sending a random access response (RAR) that includes the temporary C-RNTI; means for receiving a transmission from the UE after sending the RAR, the transmission comprising a valid C-RNTI or the transmission not comprising C-RNTI information, and wherein the valid C-RNTI is a C-RNTI for the UE from prior to performing the random access; means for using the temporary C-RNTI as a C-RNTI for the UE when the received transmission does not comprise C-RNTI information; and means for releasing the temporary C-RNTI and using the valid C-RNTI when the received transmission comprises the valid C-RNTI. - View Dependent Claims (38, 39, 40)
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41. A computer program product, comprising a non-transitory computer-readable medium that includes:
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code for causing at least one computer to receive a random access preamble for random access by a user equipment (UE); code for causing the at least one computer to assign a temporary Cell Radio Network Temporary Identifier (C-RNTI) to the UE; code for causing the at least one computer to send a random access response (RAR) that includes the temporary C-RNTI; code for causing the at least one computer to receive a transmission from the UE after sending the RAR, the transmission comprising a valid C-RNTI or the transmission not comprising C-RNTI information, and wherein the valid C-RNTI is a C-RNTI for the UE from prior to performing the random access; code for causing the at least one computer to use the temporary C-RNTI as a C-RNTI for the UE when the received transmission does not comprise C-RNTI information; and code for causing the at least one computer to release the temporary C-RNTI and using the valid C-RNTI when the received transmission comprises the valid C-RNTI. - View Dependent Claims (42, 43)
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Specification