Method and device for relay node access
First Claim
1. A method for Relay Node (RN) access, comprising:
- a base station sending a downlink message to trigger an RN to switch from monitoring a Physical Downlink Control Channel (PDCCH) to monitoring an RN-dedicated Physical Downlink Control Channel (R-PDCCH); and
the RN acquiring time-frequency resources for the R-PDCCH from the base station before or while receiving the downlink message;
wherein the downlink message is special signaling including RN-dedicated configuration information, or an MAC control element including RN-dedicated configuration information;
wherein the special signaling including the RN-dedicated configuration information is an RRC connection reconfiguration message or newly-introduced special signaling;
the MAC control element including the RN-dedicated configuration information is a newly-introduced MAC control element; and
wherein the RN-dedicated configuration information further comprises;
switching time of switching from monitoring the PDCCH to monitoring the R-PDCCH;
the method further comprises;
the RN acquires the switching time from the received downlink message and switches from monitoring the PDCCH to monitoring the R-PDCCH according to the switching time.
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Accused Products
Abstract
The present disclosure provides a method and device for Relay Node (RN) access, wherein the method comprises the following steps: a base station sends a downlink message to trigger the RN to switch from monitoring a Physical Downlink Control Channel (PDCCH) to monitoring an RN-dedicated Physical Downlink Control Channel (R-PDCCH), and the RN acquires time-frequency resources for an R-PDCCH from the base station, before or while receiving the downlink message. The present disclosure enables an RN to switch from transmitting according to indication on the PDCCH to transmitting according to indication on the R-PDCCH, i.e., the RN switches from being in a connection state as the UE to being in a connection state as an RN. The present disclosure makes less change to the existing flows, offering advantages of easy implementation, flexible configuration, etc.
11 Citations
10 Claims
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1. A method for Relay Node (RN) access, comprising:
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a base station sending a downlink message to trigger an RN to switch from monitoring a Physical Downlink Control Channel (PDCCH) to monitoring an RN-dedicated Physical Downlink Control Channel (R-PDCCH); and the RN acquiring time-frequency resources for the R-PDCCH from the base station before or while receiving the downlink message; wherein the downlink message is special signaling including RN-dedicated configuration information, or an MAC control element including RN-dedicated configuration information; wherein the special signaling including the RN-dedicated configuration information is an RRC connection reconfiguration message or newly-introduced special signaling; the MAC control element including the RN-dedicated configuration information is a newly-introduced MAC control element; and wherein the RN-dedicated configuration information further comprises;
switching time of switching from monitoring the PDCCH to monitoring the R-PDCCH;the method further comprises;
the RN acquires the switching time from the received downlink message and switches from monitoring the PDCCH to monitoring the R-PDCCH according to the switching time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A relay node, comprising:
- a message receiving module, a time-frequency resources acquiring module and a switching module;
whereinthe message receiving module is configured to receive a downlink message sent by a base station and trigger the switching module; the time-frequency resources acquiring module acquires time-frequency resources for an R-PDCCH from the base station; and the switching module is configured to switch the RN from monitoring a PDCCH to monitoring the R-PDCCH; wherein the downlink message is special signaling including RN-dedicated configuration information, or an MAC control element including RN-dedicated configuration information; wherein the special signaling including the RN-dedicated configuration information is an RRC connection reconfiguration message or newly-introduced special signaling; and the MAC control element including the RN-dedicated configuration information is a newly-introduced MAC control element; and wherein the switching module is configured to start to monitor the R-PDCCH as soon as the time-frequency resources acquiring module acquires the time-frequency resources, or acquire the switching time from the downlink message and switch the RN from monitoring the PDCCH to monitoring the R-PDCCH according to the switching time. - View Dependent Claims (10)
- a message receiving module, a time-frequency resources acquiring module and a switching module;
Specification