SYSTEMS AND METHODS FOR DELAY BASED POWER RAMPING OF DEVICES
First Claim
1. A method, comprising:
- transmitting, by one or more devices (100), a request to a base station, the request comprising a preamble for accessing one or more resources of the base station;
upon reception of a message from the base station specific to the request, initiating at a first time interval, over a first RACH transmission channel by the one or more devices (100), a first Random-access channel (RACH) process based on a received signal strength indicator (RSSI) value extracted from the message by configuring power of the one or more devices to a first power level;
upon failure of the first RACH process;
computing, by the one or more devices (100), one or more time delays specific to power ramping of the one or more devices;
initiating, at a second time interval, a second RACH process for the one or more devices based on the one or more computed time delays; and
upon initiating the second RACH process, ramping power of the one or more devices (100) to one or more power levels based on the one or more computed time delays.
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Accused Products
Abstract
In LTE Random Access Channel (RACH) mechanism, devices use slotted ALOHA based protocol for RACH message exchange. During these messages exchange, if a device does not get a response from a base-station (BS), the device assumes that it is not able to reach base station due to insufficient transmission power and increases transmit power to reach to the base station. However, at higher density most of requests are lost due to collision. In existing RACH procedure, device unnecessarily ramps power in next RACH process which leads to power wastage in already resource constrained device. When there is failure of reception of RACH process, the present disclosure computes time delays (TD) based on a RSSI value obtained from a message transmitted by the BS, and initiates RACH process accordingly. The embodiments further enable requests transmission from device to BS by ramping power of the devices based on the computed TD.
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Citations
14 Claims
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1. A method, comprising:
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transmitting, by one or more devices (100), a request to a base station, the request comprising a preamble for accessing one or more resources of the base station; upon reception of a message from the base station specific to the request, initiating at a first time interval, over a first RACH transmission channel by the one or more devices (100), a first Random-access channel (RACH) process based on a received signal strength indicator (RSSI) value extracted from the message by configuring power of the one or more devices to a first power level; upon failure of the first RACH process; computing, by the one or more devices (100), one or more time delays specific to power ramping of the one or more devices; initiating, at a second time interval, a second RACH process for the one or more devices based on the one or more computed time delays; and upon initiating the second RACH process, ramping power of the one or more devices (100) to one or more power levels based on the one or more computed time delays. - View Dependent Claims (2, 3, 4, 5)
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6. A device (100) comprising:
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a memory (102) storing instructions; one or more communication interfaces (106); and one or more hardware processors (104) coupled to the memory using the one or more communication interfaces, wherein the device is configured by the instructions the one or more hardware processors to; transmit by a request to a base station, the request comprising a preamble for accessing one or more resources of the base station, upon reception of a message from the base station specific to the request, initiate at a first time interval, over a first RACH transmission channel by the device (100), a first Random-access channel (RACH) process based on a received signal strength indicator (RSSI) value extracted from the message by configuring power of the one or more devices to a first power level, upon failure of the first RACH process; compute one or more time delays specific to power ramping of the device (100), initiate, at a second time interval, a second RACH process for the device (100) based on the one or more computed time delays, and upon initiating the second RACH process, ramp power of the device (100) to one or more power levels based on the one or more computed time delays. - View Dependent Claims (7, 8, 9, 10)
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11. One or more non-transitory machine readable information storage mediums comprising one or more instructions which when executed by one or more devices causes a method for delay based power ramping of devices, the method comprising:
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transmitting, by the one or more devices, a request to a base station, the request comprising a preamble for accessing one or more resources of the base station; upon reception of a message from the base station specific to the request, initiating at a first time interval, over a first RACH transmission channel by the one or more devices, a first Random-access channel (RACH) process based on a received signal strength indicator (RSSI) value extracted from the message by configuring power of the one or more devices to a first power level; upon failure of the first RACH process; computing, by the one or more devices, one or more time delays specific to power ramping of the one or more devices; initiating, at a second time interval, a second RACH process for the one or more devices based on the one or more computed time delays; and upon initiating the second RACH process, ramping power of the one or more devices to one or more power levels based on the one or more computed time delays. - View Dependent Claims (12, 13, 14)
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Specification