Radio resources for data and scheduling information

• US 8,804,772 B2
• Filed: 09/03/2013
• Issued: 08/12/2014
• Est. Priority Date: 07/04/2011
• Status: Active Grant

• Current Assignee: Comcast Cable Communications LLC (Comcast Corporation)
• Original Assignee: Ofinno Technologies, LLC (Ofinno, LLC)
• Inventors: Dinan, Esmael Hejazi
• Primary Examiner(s): PATEL, CHANDRAHAS B
• Application Number:
  US14/016,921
• Publication Number:
  US 20140003385A1
• Time in Patent Office: 343 Days
• Field of Search: 370/505, 370/510, 370/314, 370/513, 370/514, 370/535, 370/349, 340/7.42
• US Class Current: 370/510
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 16/02 Resource partitioning among network components, e.g. reuse partitioning
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

A base station transmits on a first control channel first scheduling information for a control message. First radio resources of the first control channel start from the first symbol of each subframe in a plurality of subframes. The base station transmits the control message configuring second radio resources of a second control channel. The second radio resources comprise resource blocks in a subset of subframes in the plurality of subframes. The control message indicates the subset of subframes and a starting symbol of the second control channel. The base station transmits second scheduling information on the second control channel.

Claims

1. A method for use in a base station, the method comprising:

a) transmitting on a Physical Downlink Control Channel (PDCCH), to a wireless device, first scheduling information for a radio resource control (RRC) message, first radio resources of said PDCCH in a subframe in a plurality of subframes starting from the first OFDM symbol of said subframe;

b) transmitting, to said wireless device, said RRC message comprising configuration parameters of second radio resources of an enhanced PDCCH (ePDCCH), said second radio resources comprising one or more resource blocks in a subset of subframes in said plurality of subframes, said RRC message indicating;

i) said subset of subframes;

ii) a first starting OFDM symbol of both said ePDCCH and a data channel in said subset of subframes; and

iii) frequency resources for said ePDCCH in terms of resource blocks in said subset of subframes; and

c) transmitting, to said wireless device, second scheduling information on said ePDCCH for a packet transmitted on said data channel.

2. The method of claim 1, wherein said configuration parameters being applicable to said subset of subframes indicated in said RRC message.

3. The method of claim 1, wherein said first radio resources and said second radio resources are configured on a carrier comprising a plurality of OFDM subcarriers.

4. The method of claim 1, wherein said first scheduling information comprises a PDCCH control packet employing a subset of subcarriers of said first radio resources transmitted on one or more OFDM symbols in a subframe.

5. A base station comprising:

a) one or more communication interfaces;

b) one or more processors; and

c) memory storing instructions that, when executed, cause said base station to;

i) transmit on a Physical Downlink Control Channel (PDCCH), to a wireless device, first scheduling information for a radio resource control (RRC) message, first radio resources of said PDCCH in a subframe in a plurality of subframes starting from the first OFDM symbol of said subframe;

ii) transmit, to said wireless device, said RRC message comprising configuration parameters of second radio resources of an enhanced PDCCH (ePDCCH), said second radio resources comprising one or more resource blocks in a subset of subframes in said plurality of subframes, said RRC message indicating;

(1) said subset of subframes;

(2) a first starting OFDM symbol of both said ePDCCH and a data channel in said subset of subframes; and

(3) frequency resources for said ePDCCH in terms of resource blocks in said subset of subframes; and

iii) transmit, to said wireless device, second scheduling information on said ePDCCH for a packet transmitted on said data channel.

6. The base station of claim 5, wherein said configuration parameters being applicable to said subset of subframes indicated in said RRC message.

7. The base station of claim 5, wherein transmission of said second scheduling information employs spatial multiplexing in said subset of subframes.

8. The base station of claim 5, wherein transmission of said second scheduling information employs beamforming in said subset of subframes.

9. The base station of claim 5, wherein said first radio resources and said second radio resources are configured on a carrier comprising a plurality of OFDM subcarriers.

10. The base station of claim 5, wherein said first scheduling information comprises a PDCCH control packet employing a subset of subcarriers of said first radio resources transmitted on one or more OFDM symbols in a subframe.

11. The base station of claim 5, wherein third radio resources of a first data channel in each subframe start from an OFDM symbol subsequent to one or more OFDM symbols employed for transmission of said PDCCH.

12. A wireless device comprising:

a) one or more communication interfaces;

b) one or more processors; and

c) memory storing instructions that, when executed, cause said wireless device to;

i) receive on a Physical Downlink Control Channel (PDCCH), from a base station, first scheduling information for a radio resource control (RRC) message, first radio resources of said PDCCH in a subframe in a plurality of subframes starting from the first OFDM symbol of said subframe;

ii) receive, from said base station, said RRC message comprising configuration parameters of second radio resources of an enhanced PDCCH (ePDCCH), said second radio resources comprising one or more resource blocks in a subset of subframes in said plurality of subframes, said RRC message indicating;

(1) said subset of subframes;

(2) a first starting OFDM symbol of both said ePDCCH and a data channel in said subset of subframes; and

(3) frequency resources for said ePDCCH in terms of resource blocks in said subset of subframes; and

iii) receive, from said base station, second scheduling information on said ePDCCH for a packet transmitted on said data channel.

13. The wireless device of claim 12, wherein said first radio resources and said second radio resources are configured on a carrier comprising a plurality of OFDM subcarriers.

14. The wireless device of claim 12, wherein said first scheduling information comprises a PDCCH control packet employing a subset of subcarriers of said first radio resources transmitted on one or more OFDM symbols in a subframe.

15. The wireless device of claim 12, wherein said configuration parameters being applicable to said subset of subframes indicated in said RRC message.