Random backoff for extended access barring
First Claim
1. A method for initiating a random access procedure by a wireless device after extended access barring (EAB), comprising:
- receiving updated EAB information at the wireless device from the node;
determining that a bar on the wireless device is released in the updated EAB information, wherein the bar prevents the wireless device from accessing a node using EAB;
counting a random backoff time at the wireless device using a random backoff timer, wherein the random backoff time is a random time between zero and a maximum backoff time period;
informing upper layers of the wireless device that access is barred using EAB for the random backoff time; and
transmitting a random access channel (RACH) message from the wireless device to the node to initiate a random access procedure after the expiry of the random backoff timer.
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Accused Products
Abstract
Technology for initiating a random access procedure by a wireless device after extended access barring (EAB) is disclosed. The wireless device can release a bar on the wireless device. The bar can prevent the wireless device from accessing a node using EAB. The wireless device can count a random backoff time using a random backoff timer. The random backoff time can include a random time between zero and a maximum backoff time period. The wireless device can transmit a random access channel (RACH) message (including physical random access channel (PRACH) preamble) from the wireless device to the node to initiate a random access procedure after the expiry of the random backoff timer.
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Citations
25 Claims
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1. A method for initiating a random access procedure by a wireless device after extended access barring (EAB), comprising:
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receiving updated EAB information at the wireless device from the node; determining that a bar on the wireless device is released in the updated EAB information, wherein the bar prevents the wireless device from accessing a node using EAB; counting a random backoff time at the wireless device using a random backoff timer, wherein the random backoff time is a random time between zero and a maximum backoff time period; informing upper layers of the wireless device that access is barred using EAB for the random backoff time; and transmitting a random access channel (RACH) message from the wireless device to the node to initiate a random access procedure after the expiry of the random backoff timer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for using adaptive random backoff based on a backoff indicator (BI) at a wireless device, comprising:
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receiving an updated backoff indicator (BI) at the wireless device from a node, wherein receiving the BI includes receiving a dedicated machine type communication (MTC) random access response (RAR) media access control (MAC) layer protocol data unit (PDU), wherein the RAR is associated with a PRACH resource, PRACH resources are segregated into dedicated MTC RAR MAC PDUs and dedicated non-MTC RAR MAC PDUs, the dedicated MTC RAR MAC PDU is sent to MTC devices, and a dedicated non-MTC RAR MAC PDU is sent to non-MTC devices; determining that a bar on the wireless device is released in the updated BI, wherein the bar prevents the wireless device from accessing a node; counting a random backoff time using a random backoff timer, wherein the random backoff time is a random time between zero and a maximum backoff time period; and transmitting a physical random access channel (PRACH) preamble from the wireless device to the node after the expiry of the random backoff timer. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A wireless device configured for extended access barring (EAB), comprising:
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a transceiver module configured to receive updated EAB information from a node and transmit a random access channel (RACH) message to the node; a processing module configured to determine that a bar on the wireless device is released in the updated EAB information, wherein the bar prevents the wireless device from accessing the node using EAB; and a random backoff timer configured to count a random backoff time, wherein the random backoff time is a random time between zero and a maximum backoff time period and the random backoff timer is configured to delay a radio resource control (RRC) connection after the release of the bar for the random backoff time wherein the wireless device is selected from the group consisting of a user equipment (UE) and a mobile station (MS), the wireless device is configured to connect to at least one of a wireless local area network (WLAN), a wireless personal area network (WPAN), and a wireless wide area network (WWAN), and the wireless device includes an antenna, a touch sensitive display screen, a speaker, a microphone, a graphics processor, an application processor, internal memory, or combinations thereof. - View Dependent Claims (22, 23, 24, 25)
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Specification