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US 2017/0367122 A1Published application
Methods and Devices for Transmitting/Receiving Data Based on the Allocation of Random Access Resources to Uplink Subframes
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsRobert Baldemair., David Astely.
Life of this patent
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Abstract
The invention relates to methods and communication devices in a network comprising the steps of mapping and allocating a first random access resource to a first frequency in an uplink subframe of a radio frame, and transmitting an expression on the radio channel expressing mapping of the first random access resource to use in relation to at least one uplink subframe.
Claims20
A method performed by a user equipment configured for use in a wireless communication system, the method comprising:
- receiving signaling indicating one of multiple predefined uplink-downlink configurations that configure a radio frame differently in terms of which one or more subframes of the radio frame are uplink subframes and which one or more subframes of a radio frame are downlink subframes, wherein subframes of a radio frame are respectively indexed by subframe numbers that indicate an order in which the subframes occur in the radio frame irrespective of whether the subframes are uplink or downlink subframes;
- determining a resource allocation that defines an allocation of one or more random access resources in time and frequency, based on the indicated uplink-downlink configuration and on an expression that uses a specific uplink subframe number to specify a location in time to which the resource allocation allocates a specific random access resource, wherein the specific uplink subframe number indexes a specific one of one or more uplink subframes respectively indexed by one or more uplink subframe numbers that indicate an order in which the one or more uplink subframes occur according to the indicated uplink-downlink configuration, wherein the specific uplink subframe number differs from a subframe number that also indexes the specific one of the one or more uplink subframes;
- and
- performing random access in the wireless communication system using at least some of the one or more random access resources.
1 more element
A user equipment configured for use in a wireless communication system, the user equipment comprising:
- processing circuitry and a memory, the memory containing instructions executable by the processing circuitry whereby the user equipment is configured to:
- receive signaling indicating one of multiple predefined uplink-downlink configurations that configure a radio frame differently in terms of which one or more subframes of the radio frame are uplink subframes and which one or more subframes of a radio frame are downlink subframes, wherein subframes of a radio frame are respectively indexed by subframe numbers that indicate an order in which the subframes occur in the radio frame irrespective of whether the subframes are uplink or downlink subframes;
- determine a resource allocation that defines an allocation of one or more random access resources in time and frequency, based on the indicated uplink-downlink configuration and on an expression that uses a specific uplink subframe number to specify a location in time to which the resource allocation allocates a specific random access resource, wherein the specific uplink subframe number indexes a specific one of one or more uplink subframes respectively indexed by one or more uplink subframe numbers that indicate an order in which the one or more uplink subframes occur according to the indicated uplink-downlink configuration, wherein the specific uplink subframe number differs from a subframe number that also indexes the specific one of the one or more uplink subframes;
- and
- perform random access in the wireless communication system using at least some of the one or more random access resources.
2 more elements
A base station configured for use in a wireless communication system, the base station comprising:
- processing circuitry and a memory, the memory containing instructions executable by the processing circuitry whereby the base station is configured to:
- transmit signaling indicating one of multiple predefined uplink-downlink configurations that configure a radio frame differently in terms of which one or more subframes of the radio frame are uplink subframes and which one or more subframes of a radio frame are downlink subframes, wherein subframes of a radio frame are respectively indexed by subframe numbers that indicate an order in which the subframes occur in the radio frame irrespective of whether the subframes are uplink or downlink subframes;
- allocate one or more random access resources in time and frequency as defined by a resource allocation, based on the indicated uplink-downlink configuration and on an expression that uses a specific uplink subframe number to specify a location in time to which the resource allocation allocates a specific random access resource, wherein the specific uplink subframe number indexes a specific one of one or more uplink subframes respectively indexed by one or more uplink subframe numbers that indicate an order in which the one or more uplink subframes occur according to the indicated uplink-downlink configuration, wherein the specific uplink subframe number differs from a subframe number that also indexes the specific one of the one or more uplink subframes;
- and
- receive random access signaling in the wireless communication system on the one or more allocated random access resources.
2 more elements
Dependencies are inferred from the claim text.