Determining timing of feedback information in wireless network realised in different technologies
First Claim
1. A method, in a user equipment, for determination of timing of a Hybrid Automatic Repeat re-Request (HARQ) response, the user equipment operating in a communication network comprising a primary radio access technology system and a secondary radio access technology system, the user equipment receiving data on at least one downlink carrier on the first radio access technology system and on at least one downlink carrier on the second radio access technology system, the user equipment transmitting the HARQ response on an uplink carrier of the first radio access technology system, the method comprising:
- determining a downlink timing related to the secondary radio access technology system;
determining an uplink timing related to the primary radio access technology system; and
determining an uplink time instance for transmission of the HARQ response on the uplink carrier of the primary radio access technology system; and
wherein the HARQ response relates to data received on the downlink carrier on the secondary radio access technology system; and
wherein determining the uplink time instance for transmission of the HARQ response comprises determining the uplink time instance for transmission of the HARQ response based on an uplink timing for an HARQ response on the secondary radio access technology system and the downlink timing related to the secondary radio access technology system and setting the uplink time instance to the next uplink timing related to the primary radio access technology system.
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Accused Products
Abstract
The invention relates to a method in a user equipment 4 for determination of timing of a Hybrid Automatic Repeat re-Request, HARQ, response. The user equipment 4 operates in a communication network 1 comprising a primary radio access technology system 2 and a secondary radio access technology system 3. The user equipment 4 receives on at least one downlink carrier on the first radio access technology system 2 and on at least one downlink carrier on the second radio access technology system 3. The method comprises determining a downlink timing related to the secondary radio access technology system 3; determining a virtual uplink timing for HARQ response on the secondary radio access technology system 3 based on the downlink timing; determining an uplink timing related to the primary radio access technology system 2; and determining, based on the virtual uplink timing and the uplink timing for the primary radio access technology system 2, an uplink time instance for transmission of the HARQ response on an uplink carrier of the primary radio access technology system 2, wherein the HARQ response relates to data received on the downlink carrier on the secondary radio access technology system 3. The invention also relates to user equipment, radio base stations and methods therein.
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Citations
12 Claims
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1. A method, in a user equipment, for determination of timing of a Hybrid Automatic Repeat re-Request (HARQ) response, the user equipment operating in a communication network comprising a primary radio access technology system and a secondary radio access technology system, the user equipment receiving data on at least one downlink carrier on the first radio access technology system and on at least one downlink carrier on the second radio access technology system, the user equipment transmitting the HARQ response on an uplink carrier of the first radio access technology system, the method comprising:
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determining a downlink timing related to the secondary radio access technology system; determining an uplink timing related to the primary radio access technology system; and determining an uplink time instance for transmission of the HARQ response on the uplink carrier of the primary radio access technology system; and wherein the HARQ response relates to data received on the downlink carrier on the secondary radio access technology system; and wherein determining the uplink time instance for transmission of the HARQ response comprises determining the uplink time instance for transmission of the HARQ response based on an uplink timing for an HARQ response on the secondary radio access technology system and the downlink timing related to the secondary radio access technology system and setting the uplink time instance to the next uplink timing related to the primary radio access technology system. - View Dependent Claims (2, 3, 4, 5)
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6. A user equipment configured to operate in a communication network comprising a primary radio access technology system and a secondary radio access technology system, the user equipment being configured to receive data on at least one downlink carrier on the first radio access technology system and at least one downlink carrier on the second radio access technology system, the user equipment transmitting a Hybrid Automatic Repeat re-Request (HARQ) response on an uplink carrier of the first radio access technology system, the user equipment comprising:
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one or more processing circuits configured to; determine a downlink timing related to the secondary radio access technology system; determine an uplink timing related to the primary radio access technology system; and determine an uplink time instance for transmission of the HARQ response on the uplink carrier of the primary radio access technology system; wherein the HARQ response relates to data received on the downlink carrier on the secondary radio access technology system; wherein the one or more processing circuits determine the uplink time instance for transmission of the HARQ response based on an uplink timing for an HARQ response on the secondary radio access technology system and the downlink timing related to the secondary radio access technology system and setting the uplink time instance to the next uplink timing related to the primary radio access technology system. - View Dependent Claims (7, 8, 9, 10)
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11. A method in a radio base station node of a communication network, the communication network comprising a primary radio access technology system and a secondary radio access technology system, the radio base station node being configured for communication with a user equipment using one downlink carrier and one uplink carrier on the primary radio access technology system, the method comprising:
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detecting feedback information associated with data transmissions on a downlink carrier of the secondary radio access technology system during communication with a user equipment using the uplink carrier of the primary radio access technology system; the detecting the feedback information associated with the secondary radio access technology system achieved by; determining a downlink timing related to the secondary radio access technology system; determining an uplink timing related to the primary radio access technology system; and determining an uplink time instance for reception of a Hybrid Automatic Repeat re-Request (HARQ) response on the uplink carrier of the primary radio access technology system; wherein the HARQ response relates to data transmitted on the downlink carrier on the secondary radio access technology system; and wherein the determining the uplink time instance for reception of the HARQ response comprises determining the uplink time instance for reception of the HARQ response based on an uplink timing for an HARQ response on the secondary radio access technology system and the downlink timing related to the secondary radio access technology system and setting the uplink time instance to the next uplink timing related to the primary radio access technology system.
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12. A radio base station node of a communication network, the communication network comprising a primary radio access technology system and a secondary radio access technology system, the radio base station node being arranged for communication with a user equipment using one downlink carrier and one uplink carrier on the primary radio access technology system, the radio base station comprising:
one or more processing circuits configured to; detect feedback information associated with data transmissions on a downlink carrier of the secondary radio access technology system during communication with a user equipment using the uplink carrier of the primary radio access technology system; wherein the detection of the feedback information associated with the secondary radio access technology system is achieved by; determining a downlink timing related to the secondary radio access technology system; determining an uplink timing related to the primary radio access technology system; and determining an uplink time instance for reception of a Hybrid Automatic Repeat re-Request (HARQ) response on the uplink carrier of the primary radio access technology system; wherein the HARQ response relates to data transmitted on the downlink carrier on the secondary radio access technology system; and wherein the one or more processing circuits determine the uplink time instance for reception of the HARQ response based on an uplink timing for a HARQ response on the secondary radio access technology system and the downlink timing related to the secondary radio access technology system and setting the uplink time instance to the next uplink timing related to the primary radio access technology system.
Specification