Downlink multiplexing

• US 9,750,045 B2
• Filed: 03/16/2016
• Issued: 08/29/2017
• Est. Priority Date: 08/14/2007
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Ahluwalia, Jagdeep Singh, Awad, Yassin Aden
• Primary Examiner(s): Mills, Donald
• Assistant Examiner(s): Baron, Henry
• Application Number:
  US15/071,911
• Publication Number:
  US 20160198489A1
• Time in Patent Office: 531 Days
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1822 involving configuration of automatic repeat request [ARQ] with parallel processes
• CPC Class Codes: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/1273 of downlink data flows
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A mobile station which communicates with a base station includes a transceiver configured to receive a downlink control channel, and a controller configured to determine whether C-RNTI is included in the downlink control channel. The controller is further configured to determine that resource allocation in the downlink control channel overrides persistent downlink resource allocation for a Transmission Time Interval (TTI) if the C-RNTI is included in the downlink control channel. The transceiver is further configured to receive a Hybrid Automatic Repeat Request (HARQ) transmission by using persistent downlink resources.

Claims

1. A mobile station which communicates with a base station, the mobile station comprising:

a transceiver configured to receive a downlink control channel; and

a controller configured to determine whether C-RNTI, is included in the downlink control channel received by the transceiver,

wherein the transceiver is further configured to receive an allocation of persistent downlink resources for a Hybrid Automatic Repeat Request (HARQ) transmission, and

wherein the controller is further configured to determine that resource allocation in the downlink control channel overrides persistent downlink resource allocation for a Transmission Time Interval (TTI) if the C-RNTI is included in the downlink control channel, when the mobile station includes a persistent downlink resource allocation.

2. The mobile station of claim 1, wherein the resource allocation in the downlink control channel indicates dynamic downlink resource allocation.

3. A base station which communicates with a mobile station, the base station comprising:

a controller configured to determine whether C-RNTI is included in the downlink control channel; and

a transceiver configured to transmit a downlink control channel,

wherein the controller is further configured to allocate persistent downlink resources for a Hybrid Automatic Repeat Request (HARQ) transmission, and

wherein the controller is further configured to determine that resource allocation in the downlink control channel overrides persistent downlink resource allocation for a Transmission Time Interval (TTI) when the mobile station includes a persistent downlink resource allocation and the C-RNTI is included in the downlink control channel.

4. The base station of claim 3, wherein the resource allocation in the downlink control channel indicates dynamic downlink resource allocation.

5. A communications method in a mobile station which communicates with a base station, the communications method comprising:

receiving a downlink control channel;

determining if C-RNTI is included in the received downlink control channel;

receiving an allocation of persistent downlink resources for a Hybrid Automatic Repeat Request (HARQ) transmission; and

determining that resource allocation in the downlink control channel overrides persistent downlink resource allocation for a Transmission Time Interval (TTI) if the C-RNTI is included in the downlink control channel, when the mobile station includes a persistent downlink resource allocation.

6. The communications method of claim 5, wherein the resource allocation in the downlink control channel indicates dynamic downlink resource allocation.

7. A communications method in a base station which communicates with a mobile station, the communications method comprising:

determining whether C-RNTI is included in the downlink control channel;

transmitting a downlink control channel;

allocating persistent downlink resources for a Hybrid Automatic Repeat Request (HARQ) transmission; and

determining that resource allocation in the downlink control channel overrides persistent downlink resource allocation for a Transmission Time Interval (TTI) when the mobile station includes a persistent downlink resource allocation and the C-RNTI is included in the downlink control channel.

8. The communications method of claim 7, wherein the resource allocation in the downlink control channel indicates dynamic downlink resource allocation.