Method, system and base station using frame configuration which supports relay for wireless transmission
AssigneeChina Academy of Telecommunications Technology
InventorsGuanghui Zhang, Yongbin Xie, Yingmin Wang, Shaohui Sun, Yang Yu
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Abstract
A method using a frame structure which supports relay for wireless transmission, which divides the time slots of a sub-frame into some zones, in which the data is transmitted using the manner of TDD, wherein further including that at least one time slot in a sub-frame is set as a hybrid zone; the transmission of the data is realized through frequency division multiplexing the access link and relay link in the hybrid zone of the sub-frame; and also the multi-hop relay is supported under the two work manners of relay in sub-frame and relay in frame.
Claims11
A method for wireless transmission by using a frame structure supporting Relay, wherein time slots of a subframe is divided into a plurality of zones, and data transmission is performed in a time division multiplex manner, and the method further comprises:
- setting at least one time slot in the subframe as a hybrid zone;
- and
- performing the data transmission in a frequency division multiplex manner in the hybrid zone;
- wherein if a plurality of relays exist, a base station or a relay supports multi-hop by transmitting data, receiving data or being idle in a relay zone;
- wherein the multi-hop relay is supported partially in the following manner:
- in the downlink direction, an odd hop relay transmits data in a downlink relay zone of an even subframe to a next hop relay, and the base station and an even hop relay transmits data in a downlink relay zone of an odd subframe to a next hop relay;
- in the uplink direction, an odd hop relay transmits data in an uplink relay zone of an odd subframe to a back hop relay or base station, and an even hop relay transmits data in an uplink relay zone of an even subframe to a back hop relay;
- and
- wherein a relay supports multi-hop relay by operating in an intra-frame relay approach.
A system for wireless transmission by using a frame structure supporting Relay, comprising a base station, a relay and user equipment, wherein
- the base station transmits data in a hybrid zone of a downlink subframe to the user equipment and the relay respectively in a frequency division multiplex manner;
- the relay transmits data in a hybrid zone of an uplink subframe to the base station at a frequency allocated by the base station;
- and
- the user equipment transmits data to the base station in a frequency division multiplex manner with the relay in the hybrid zone of the uplink subframe
- wherein if a plurality of relays exist, the base station or a relay supports multi-hop by transmitting data, receiving data or being idle in a relay zone;
- wherein the multi-hop relay is supported partially in the following manner:
- in the downlink direction, an odd hop relay transmits data in a downlink relay zone of an even subframe to a next hop relay, and the base station and an even hop relay transmits data in a downlink relay zone of an odd subframe to a next hop relay;
- in the uplink direction, an odd hop relay transmits data in an uplink relay zone of an odd subframe to a back hop relay or base station, and an even hop relay transmits data in an uplink relay zone of an even subframe to a back hop relay;
- and
- wherein a relay supports multi-hop relay by operating in an intra-frame relay approach.
A base station, comprising:
- a setting unit, a transmitting unit and a receiving unit, wherein
- the setting unit is configured to set at least one time slot of a subframe as a hybrid zone;
- the transmitting unit is configured to transmit data in a hybrid zone of a downlink subframe to user equipment and a relay in a frequency division multiplex manner;
- and
- the receiving unit is configured to receive data sent from the relay or data that is frequency division multiplexed by the relay and the user equipment in a hybrid zone of an uplink subframe;
- wherein if a plurality of relays exist, the base station or a relay supports multi-hop by transmitting data, receiving data or being idle in a relay zone;
- wherein the multi-hop relay is supported partially in the following manner:
- in the downlink direction, an odd hop relay transmits data in a downlink relay zone of an even subframe to a next hop relay, and the base station and an even hop relay transmits data in a downlink relay zone of an odd subframe to a next hop relay;
- in the uplink direction, an odd hop relay transmits data in an uplink relay zone of an odd subframe to a back hop relay or base station, and an even hop relay transmits data in an uplink relay zone of an even subframe to a back hop relay;
- and
- wherein a relay supports multi-hop relay by operating in an intra-frame relay approach.
Dependencies are inferred from the claim text.