Method and Apparatus for Allocating Radio Resources in Cellular Communications Network

• US 20130288697A1
• Filed: 01/12/2011
• Published: 10/31/2013
• Est. Priority Date: 01/12/2011
• Status: Active Grant

• Current Assignee: Beijing Xiaomi Mobile Software Co., Ltd. (Xiaomi Corp.)
• Original Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Inventors: Miao, Deshan, Skov, Peter, Wang, Xiaoyi
• Granted Patent: US 9,125,221 B2
• Time in Patent Office: Days
• US Class Current: 455/452.1
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04W 72/1263 Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

The invention relates to a method and apparatuses for allocating radio resources in a cellular communications network including the steps of: dynamically allocating a set of radio resources for a transmission taking place at a transmission time instance and for a further transmission taking place at a further transmission time instance, the further transmission relating to a response to the transmission taking place at the transmission time instance, and broadcasting both sets of allocated radio resources in the cellular communications network.

Claims

1. Method for allocating radio resources in a cellular communications network comprising the steps of:

dynamically allocating a set of radio resources for a transmission taking place at a transmission time instance (N) and for a further transmission taking place at a further transmission time instance (N+k), the further transmission relating to a response to the transmission taking place at the transmission time instance (N), and

broadcasting both sets of allocated radio resources in the cellular communications network.

2. Method according to claim 1, wherein the response comprises a feedback message.

3. Method according to claim 2, wherein the feedback message is an ACK or a NACK message.

4. Method according to claim 3, wherein the feedback message further comprises of one or more ACK or NACK messages.

5. Method according to claim 1, wherein both sets of allocated radio resources are comprised within a broadcasted downlink configuration indicator.

6. Method according to claim 1, wherein if the transmission is transmitted on a Physical Download Shared Channel, the further transmission is transmitted on a Physical Uplink Shared Channel or a Physical Uplink Control Channel.

7. Method according to claim 1, wherein if the transmission is transmitted on a Physical Uplink Shared Channel, the further transmission is transmitted on a Physical Downlink Shared Channel or on a Physical Hybrid ARQ Indicator Channel.

8. Method according to claim 1, wherein any data present at the further transmission time instance (N+k) is multiplexed together with data relating to the response to be transmitted at the further transmission time instance (N+k).

9. Method according to claim 8, wherein the multiplexed data further comprises downlink physical hybrid ARQ indicator information multiplexed on the Physical Downlink Shared Channel.

10. Method according to claim 9, wherein the downlink physical hybrid ARQ indicator information is transmitted with a downlink demodulation reference signal.

11. Method according to claim 10, wherein the downlink physical hybrid ARQ indicator information is demodulated based on the transmitted downlink demodulation reference signal.

12. Method according to claim 1, wherein the cellular communications network is a centralised radio access network.

13. Access node having means arranged for allocating radio resources in a cellular communications network comprising:

allocating means arranged to dynamically allocated a set of radio resources for a transmission taking place at a transmission time instance (N) and for a further transmission taking place at a further transmission time instance (N+k), the further transmission relating to a response to the transmission taking place at the transmission time instance (N), and

transceiver means arranged to broadcast both sets of allocated radio resources in the cellular communications network.

14. Access node according to claim 13, wherein the transceiver means are further arranged to broadcast both sets of allocated radio resources within a downlink configuration indicator.

15. Access node according to claim 13, wherein the access node is at least one of the following:

a base station, an eNodeB.

19. Cellular communications network comprising at least one access node according to claim 13 and at least one user equipment further comprising:

receiving means arranged to receive a broadcast comprising a set of allocated radio resources for a transmission taking place at a transmission time instance (N) and for a further transmission taking place at a further transmission time instance (N+k), the further transmission relating to a response to the transmission taking place at the transmission time instance (N), and

transmitting means arranged to transmit the further data transmission at the further transmission time instance (N+k).

16. User equipment comprising:

receiving means arranged to receive a broadcast comprising a set of allocated radio resources for a transmission taking place at a transmission time instance (N) and for a further transmission taking place at a further transmission time instance (N+k), the further transmission relating to a response to the transmission taking place at the transmission time instance (N), and

transmitting means arranged to transmit the further data transmission at the further transmission time instance (N+k).

17. User equipment according to claim 16, further comprising:

multiplexing means arranged to multiplex data to be transmitted together with data relating to the feedback message at the further transmission time instance (N+k).

18. User equipment according to claim 17, wherein the transmitting means are further arranged to transmit an ACK or a NACK message when transmitting the feedback message.