Degradation signaling
地域：
Espoo
摘要
A method and apparatus for signaling a message regarding UE receiver performance degradation between a user equipment and a network. Close UL/DL frequencies or harmonic relationships may cause MSD. A user equipment may indicate an actual or improved maximum sensitivity degradation value for a configuration, or that there is no maximum sensitivity degradation for a configuration, using capability transfer signaling, RRC reconfiguration signaling, and/or measurement reporting. The indicated maximum sensitivity degradation for a configuration may be found in a table. The user equipment may additionally signal information about configuration(s) it supports and/or measurements it has made related to cross band transmit-to-receive degradation and/or SINR. A UE may implicitly indicate a MSD value through selection of a bandwidth combination set. MSD may be used by the network to assist in making scheduling decisions.
說明書
As discussed in 3GPP R4-1902146, the MSD for each EN-DC configuration may be a function of the separation between transmit and receive frequencies as well as the uplink and downlink bandwidths. The MSD for each UE may be different depending on implementation. For example, previously there was not sufficient isolation between TDD Band 41 and mid-spectrum FDD bands such as Band 25, Band 3 and Band 1 with earlier filters. However, more recent advances in technology have enabled integrated filter/multiplexer products to achieve sufficient isolation between TDD Band 41 and FDD Band 1 to allow for dual transmission in TDD Band 41 and FDD Band 1 uplink carrier aggregation with no MSD allowed.
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