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US 8,274,924 B2Granted
Intra-donor cell coordinated multi-point transmission with type 1 relay
AssigneeResearch In Motion Limited
InventorsZhijun Cai, Yi Yu
Life of this patent
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Abstract
A method is provided for communication in a wireless telecommunications system. The method comprises an access node acting as a master control but not acting as a serving node in a coordinated multi-point (CoMP) transmission with a relay node toward a user equipment. The method further comprises the access node retaining a copy of data packets that the access node sends to the relay node for the CoMP transmission.
Claims20
A method for communication in a wireless telecommunications system, the method comprising:
- retaining, by an access node, a copy of data packets that the access node sends to a relay node,
- receiving, by the access node, an indication from the relay node that the access node and the relay node perform coordinated multi-point (CoMP) transmission,
- wherein, in an architecture in which an S1 interface terminates at the relay node, the method further comprises:
- receiving, by the access node, additional information from the relay node;
- using, by the access node, the additional information to identify data packets that will be transmitted using CoMP, wherein the additional information includes at least one of:
- an identifier for a user equipment (UE) involved in the CoMP transmission;
- at least one UE bearer General Packet Radio Service (GPRS) Tunneling Protocol (GTP) tunnel endpoint identifier (TEID);
- and
- relay node bearer configuration information;
- and
- additionally receiving, by the access node, from the relay node a complete medium access control protocol data unit without a payload, and the access node places a payload in the medium access control protocol data unit.
8 more elements
A method for communication in a wireless telecommunications system, the method comprising:
- sending, by a relay node, an indication to an access node that the access node and the relay node perform a coordinated multi-point (CoMP) transmission;
- instructing, by the relay node, the access node to retain a copy of data packets that the access node sends to the relay node;
- and
- refraining, by the relay node, from sending the data packets back to the access node,
- wherein, in an architecture in which an S1 interface terminates at the relay node,
- the method further comprises:
- sending, by the relay node, additional information to the access node, wherein the additional information includes at least one of:
- an identifier for a user equipment (UE) involved in the CoMP transmission
- at least one UE bearer General Packet Radio Service (GPRS) Tunneling Protocol (GTP) tunnel endpoint identifier (TEID);
- and
- relay node bearer configuration information;
- and
- additionally sending, by the relay node, to the access node a complete medium access control protocol data unit without a payload, into which the access node places a payload.
10 more elements
An access node in a wireless telecommunications system, the access node comprising:
- a processor configured such that the access node retains a copy of data packets that the access node sends to a relay node, and further configured such that the access node receives from the relay node an indication that the access node and the relay node perform coordinated multi-point (CoMP) transmission,
- wherein, in an architecture in which an S1 interface terminates at the relay node, the access node receives from the relay node additional information that includes at least one of:
- an identifier for a UE involved in the CoMP transmission;
- at least one UE bearer General Packet Radio Service (GPRS) Tunneling Protocol (GTP) tunnel endpoint identifier (TEID);
- and
- relay node bearer configuration information,
- wherein the access node additionally receives from the relay node a complete medium access control protocol data unit without a payload, and the access node places a payload in the medium access control protocol data unit.
4 more elements
A relay node in a wireless telecommunications system, the relay node comprising:
- a processor configured such that the relay node instructs an access node to retain a copy of data packets that the access node sends to the relay node, and further configured such that the relay node refrains from sending the data packets back to the access node, and further configured such that the relay node sends to the access node an indication that the access node and the relay node perform the coordinated multi-point (CoMP) transmission,
- wherein, in an architecture in which an S1 interface terminates at the relay node, the relay node sends the access node additional information that includes at least one of:
- an identifier for a UE involved in the CoMP transmission;
- at least one UE bearer General Packet Radio Service (GPRS) Tunneling Protocol (GTP) tunnel endpoint identifier (TEID);
- and
- relay node bearer configuration information,
- wherein the relay node additionally sends to the access node a complete medium access control protocol data unit without a payload, into which the access node places a payload.
4 more elements
Dependencies are inferred from the claim text.