Dynamic Random Access Resource Size Configuration and Selection
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Abstract
The disclosure relates to connection setup between a wireless device and a mobile communication network using random access, and more specifically to dynamic random access resource configuration and selection. The disclosure provides for a method in a wireless device, of selecting random access resources for performing a random access procedure to a wireless network. The method comprises the step receiving information from a radio network node comprised in a cell of the wireless network, wherein the received information indicates at least a first and a second random access resource having different resource sizes. The method further comprises selecting one of said at least first and a second random access resources based on an expected uplink power received by the radio network node and transmitting a random access message to said wireless network using the selected resource. The disclosure further relates to methods for providing random access resources, as well as to a wireless device, and to radio network nodes of a wireless network.
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Citations
46 Claims
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1-24. -24. (canceled)
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25. A method in a wireless device, of selecting random access resources for performing a random access procedure to a wireless network, comprising the steps:
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receiving information from a radio network node comprised in a cell of the wireless network, wherein the received information indicates at least a first and a second random access resource being configured in the cell of said wireless network; wherein the first and second random access resource have different resource sizes; selecting one of said at least first and a second random access resources based on measured downlink channel characteristics or an expected uplink received power; and transmitting a random access message to said wireless network using the selected resource. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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33. A non-transitory computer-readable medium storing a computer program that, when executed by processing circuitry of a wireless device, configures the wireless device to select random access resources for performing a random access procedure to a wireless network, based on said computer program comprising program instructions configuring the wireless device to:
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receive information from a radio network node comprised in a cell of the wireless network, wherein the received information indicates at least a first and a second random access resource being configured in the cell of said wireless network; wherein the first and second random access resource have different resource sizes; select one of said at least first and a second random access resources based on measured downlink channel characteristics or an expected uplink received power; and transmit a random access message to said wireless network using the selected resource
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34. A wireless device configured to select random access resources for performing a random access procedure to a wireless network, comprising:
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a network communication transceiver configured to communicate with a network node in a cell of said wireless network, a processor; and a memory storing computer program code which, when run in said processor, causes the wireless device to; receive information from said radio network node using said network communication unit, wherein the received information indicates at least a first and a second random access resources being configured in the cell;
wherein the first and the second random access resources have different resource sizes;select one of said at least first and a second random access resources based on measured downlink channel characteristics or expected uplink received power received by the radio network node; and transmit a random access message to said wireless network using the selected resource.
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35. A method performed in a radio network node in a wireless network for configuration of random access resources for performing a random access procedure to said wireless network, said method comprising the steps:
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configuring in a cell of said wireless network a first uplink radio resource as a first random access resource; and configuring in said cell at least one second uplink radio resource as a second random access resource, wherein said first and second uplink radio resources have different sizes. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A non-transitory computer-readable medium storing a computer program comprising program instructions that, when executed by processing circuitry of a radio network node configured for operation in a wireless network, configure the radio network node to perform configuration of random access resources for performing a random access procedure to the wireless network, said computer program comprising computer program instructions to configure the radio network node to:
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configure in a cell of said wireless network a first uplink radio resource as a first random access resource; and configure in said cell at least one second uplink radio resource as a second random access resource, wherein said first and second uplink radio resources have different sizes.
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46. A radio network node configured for operation in a cell of a wireless network and arranged to configure random access resources for random access to said wireless network, said radio network node comprising:
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a processor; and a memory storing computer program code which, when run in the processor, causes the radio network node to; configure in a cell of said wireless network a first uplink radio resource as a first random access resource; and configure in said cell at least one second uplink radio resource as a second random access resource, wherein said first and second uplink radio resources have different resource sizes.
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Specification