Cell search for D2D enabled UEs in out of network coverage
First Claim
1. A Device-to-Device, D2D, enabled User Equipment, UE, for a cellular communication network, the D2D enabled UE comprising control circuitry adapted for performing a cell search in an out of coverage condition of the D2D enabled UE, wherein performing the cell search is based on a first measurement configuration during a first phase, and performing the cell search is based on a second measurement configuration during a second phase, wherein the first measurement configuration pertains to a carrier whose sidelink is preconfigured for D2D operation in an out of network coverage operation and wherein a first set of carriers that is searched based on the first measurement configuration during the first phase comprises less than all of a second set of carriers that is searched based on the second measurement configuration during the second phase.
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Abstract
There is disclosed a method for operating a D2D enabled UE for a cellular communication network. The method comprises performing a cell search in an out of coverage condition of the UE, wherein performing a cell search is based on a first measurement configuration during a first phase, and based on a second measurement configuration during a second phase, wherein the first measurement configuration pertains to a carrier whose sidelink is preconfigured for ProSe operation in out of network coverage operation.
The disclosure also pertains to related methods and devices.
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Citations
20 Claims
- 1. A Device-to-Device, D2D, enabled User Equipment, UE, for a cellular communication network, the D2D enabled UE comprising control circuitry adapted for performing a cell search in an out of coverage condition of the D2D enabled UE, wherein performing the cell search is based on a first measurement configuration during a first phase, and performing the cell search is based on a second measurement configuration during a second phase, wherein the first measurement configuration pertains to a carrier whose sidelink is preconfigured for D2D operation in an out of network coverage operation and wherein a first set of carriers that is searched based on the first measurement configuration during the first phase comprises less than all of a second set of carriers that is searched based on the second measurement configuration during the second phase.
- 6. A network node for a wireless communication network, the network node comprising control circuitry adapted for configuring a Device-to-Device, D2D, enabled User Equipment, UE, with a first measurement configuration for performing a cell search during a first phase and a second measurement configuration for performing a cell search during a second phase, wherein the first measurement configuration pertains to a carrier whose sidelink is preconfigured for D2D operation in an out of network coverage operation and wherein a first set of carriers that is searched based on the first measurement configuration during the first phase comprises less than all of a second set of carriers that is searched based on the second measurement configuration during the second phase.
- 11. A computer program product comprising a non-transitory computer readable medium storing a computer program having instructions executable by control circuitry, the instructions which, when executed, cause the control circuitry to perform a cell search in an out of coverage condition of a Device-to-Device, D2D enabled User Equipment, UE, wherein performing the cell search is based on a first measurement configuration during a first phase, and performing the cell search is based on a second measurement configuration during a second phase, wherein the first measurement configuration pertains to a carrier whose sidelink is preconfigured for D2D operation in an out of network coverage operation and wherein a first set of carriers that is searched based on the first measurement configuration during the first phase comprises less than all of a second set of carriers that is searched based on the second measurement configuration during the second phase.
Specification