Radio coexistence in wireless networks

• US 9,681,382 B2
• Filed: 02/01/2013
• Issued: 06/13/2017
• Est. Priority Date: 05/11/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Fong, Mo-Han, Heo, Youn Hyoung, He, Hong, Zhang, Yujian, Koc, Ali
• Primary Examiner(s): Thier, Michael
• Assistant Examiner(s): Islam, Rownak
• Application Number:
  US13/756,663
• Publication Number:
  US 20130301420A1
• Time in Patent Office: 1,593 Days
• Field of Search: 370329, 370311, 370328, 370252, 370241, 370331, 370280, 370310, 3703102, 370330, 370345, 370458, 370498, 4555531, 455450, 455436, 455501
• CPC Class Codes: H04B 1/56 with provision for simultaneous communication in two directions
• CPC Class Codes: H04B 15/00 Suppression or limitation of noise or interference by means associated with receiver H04B1/10
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04B 7/0417 Feedback systems
• CPC Class Codes: H04B 7/0456 Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
• CPC Class Codes: H04B 7/0473 taking constraints in layer or codeword to antenna mapping into account
• CPC Class Codes: H04B 7/0486 taking channel rank into account
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04B 7/063 Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
• CPC Class Codes: H04B 7/0632 Channel quality parameters, e.g. channel quality indicator [CQI]
• CPC Class Codes: H04B 7/0639 Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
• CPC Class Codes: H04B 7/0647 Variable feedback rate
• CPC Class Codes: H04B 7/065 Variable contents, e.g. long-term or short-short
• CPC Class Codes: H04B 7/26 at least one of which is mobile
• CPC Class Codes: H04J 3/00 Time-division multiplex systems H04J14/00 takes precedence; relay systems H04B7/14; selecting techniques H04Q
• CPC Class Codes: H04J 3/1694 Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers Passive Optical Networks H04Q11/0062
• CPC Class Codes: H04J 3/26 in which the information and the address are simultaneously transmitted
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/1803 Stop-and-wait protocols
• CPC Class Codes: H04L 1/1822 involving configuration of automatic repeat request [ARQ] with parallel processes
• CPC Class Codes: H04L 27/2627 : Modulators
• CPC Class Codes: H04L 5/0007 : the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/001 : the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0035 : Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0053 : Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0073 : Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04L 5/0096 : Indication of changes in allocation
• CPC Class Codes: H04L 5/14 : Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1469 : using time-sharing
• CPC Class Codes: H04L 65/00 : Network arrangements, protocols or services for supporting real-time applications in data packet communication real-time or near real-time messaging, e.g. instant messaging [IM] H04L51/04; selective video distribution H04N21/00
• CPC Class Codes: H04L 69/22 : Parsing or analysis of headers
• CPC Class Codes: H04L 69/324 : in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04W 16/14 : Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/02 : Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/10 : Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 36/00 : Hand-off or reselection arrangements
• CPC Class Codes: H04W 36/0061 : of neighbour cell information
• CPC Class Codes: H04W 36/0088 : Scheduling hand-off measurements
• CPC Class Codes: H04W 36/0094 : Definition of hand-off measurement parameters
• CPC Class Codes: H04W 36/04 : Reselecting a cell layer in multi-layered cells
• CPC Class Codes: H04W 36/16 : Performing reselection for specific purposes
• CPC Class Codes: H04W 36/22 : for handling the traffic
• CPC Class Codes: H04W 4/02 : Services making use of location information
• CPC Class Codes: H04W 4/023 : using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 4/06 : Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 4/16 : Communication-related supplementary services, e.g. call-transfer or call-hold
• CPC Class Codes: H04W 4/70 : Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 4/90 : Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 48/20 : Selecting an access point
• CPC Class Codes: H04W 52/0209 : in terminal devices terminal devices per se H04W88/02
• CPC Class Codes: H04W 52/0212 : managed by the network, e.g. network or access point is master and terminal is slave
• CPC Class Codes: H04W 52/0216 : using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0225 : using monitoring of external events, e.g. the presence of a signal
• CPC Class Codes: H04W 52/0229 : where the received signal is a wanted signal
• CPC Class Codes: H04W 52/0235 : where the received signal is a power saving command
• CPC Class Codes: H04W 52/0251 : using monitoring of local events, e.g. events related to user activity
• CPC Class Codes: H04W 56/00 : Synchronisation arrangements
• CPC Class Codes: H04W 56/001 : Synchronization between nodes
• CPC Class Codes: H04W 72/02 : Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/044 : based on the type of the allocated resource
• CPC Class Codes: H04W 72/12 : Wireless traffic scheduling
• CPC Class Codes: H04W 72/1215 : for collaboration of different radio technologies
• CPC Class Codes: H04W 72/21 : in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 : in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/27 : between access points
• CPC Class Codes: H04W 72/30 : Resource management for broadcast services
• CPC Class Codes: H04W 72/51 : based on terminal or device properties
• CPC Class Codes: H04W 72/54 : based on quality criteria
• CPC Class Codes: H04W 72/541 : using the level of interference
• CPC Class Codes: H04W 72/542 : using measured or perceived quality
• CPC Class Codes: H04W 72/56 : based on priority criteria
• CPC Class Codes: H04W 76/14 : Direct-mode setup
• CPC Class Codes: H04W 76/18 : Management of setup rejection or failure
• CPC Class Codes: H04W 76/27 : Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 : Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/06 : adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Technology for reducing coexistence interference in a multi-radio device is disclosed. One method comprises applying discontinuous reception (DRX) to a user equipment (UE) having a plurality of radio transceivers. The DRX can include a long DRX cycle for the UE. One of a 2 milliseconds (ms), 5 ms, and 8 ms cycle start offset period may be provided for the long DRX cycle to reduce coexistence interference between the plurality of radio transceivers in the UE. The cycle start offset period is selected to provide at least one Hybrid Automatic Repeat Request (HARQ) process reservation pattern to reduce the coexistence interference between the plurality of radio transceivers in the UE.

Claims

1. A method for reducing coexistence interference in a multi-radio device, comprising:

receiving a discontinuous reception (DRX) configuration at the multi-radio device from an enhanced Node B (eNodeB), wherein the multi-radio device is a user equipment having a plurality of radio transceivers;

applying the discontinuous reception (DRX) configuration to at least one of the plurality of radio transceivers in the multi-radio device, wherein the DRX includes a long DRX cycle for the at least one of the plurality of radio transceivers;

selecting one of a 2 milliseconds (ms), 5 ms, and 8 ms cycle start offset period for the long DRX cycle to reduce coexistence interference between the plurality of radio transceivers in the multi-radio device;

applying a 2 ms, 5 ms, or 8 ms long DRX cycle to provide additional DRX patterns to reduce in-device interference, wherein the 2 ms long DRX cycle and the 5 ms long DRX cycle provides a plurality of Hybrid Automatic Repeat Request (HARQ) reservation patterns for Long Term Evolution (LTE) Time Division Duplex (LTE-TDD) and the 8 ms long DRX cycle corresponds to eight HARQ reservation patterns for LTE Frequency Division Duplex (FDD);

selecting a downlink channel state information (CSI) reference resource subframe with no in-device interference from the plurality of radio transceivers in the multi-radio device, wherein the downlink CSI reference resource subframe with no in-device interference that is selected is within an unscheduled period of the long DRX cycle, wherein CSI for the multi-radio device is determined using the selected downlink CSI reference resource subframe with no in-device interference to obtain an accurate CSI for the multi-radio device; and

periodically reporting the CSI, from the multi-radio device to an evolved node B (eNB), at a CSI reporting subframe, wherein the CSI reporting subframe is located at least four subframes after the downlink CSI reference resource subframe such that the CSI reporting subframe is not impacted by in-device interference, wherein the CSI is reported during a transition from the unscheduled period of the long DRX cycle to a scheduling period of a subsequent long DRX cycle.

2. The method of claim 1, wherein the plurality of radio transceivers comprises a Third Generation Partnership Project Long Term Evolution (3GPP LTE) radio transceiver and a Bluetooth radio transceiver.

3. The method of claim 1, wherein the 2 ms cycle start offset period provides at least one HARQ reservation pattern to reduce the coexistence interference between the Bluetooth radio transceiver and a LTE radio transceiver communicating in LTE Time Division Duplex (LTE-TDD).

4. The method of claim 1, wherein the 5 ms cycle start offset period provides at least one HARQ reservation pattern to reduce the coexistence interference between the Bluetooth radio transceiver and a LTE radio transceiver communicating in LTE Time Division Duplex (LTE-TDD).

5. The method of claim 1, wherein the 8 ms cycle start offset period provides at least one HARQ reservation pattern to reduce the coexistence interference between the Bluetooth radio transceiver and a LTE radio transceiver communicating in LTE Frequency Division Duplex (LTE-FDD).

6. The method of claim 1, further comprising:

monitoring, by the UE, the Physical Downlink Control Channel (PDCCH) during the long DRX cycle.

7. The method of claim 1, wherein selecting one of the plurality of cycle start offset periods comprises providing at least one HARQ process reservation pattern for ensuring that each of the plurality of radio transceivers of the UE is not transmitting information while a different radio transceiver of the UE is receiving information, thereby reducing coexistence interference between the plurality of radio transceivers in the UE, wherein each radio transceiver includes a different Radio Access Technology (RAT).

8. A multi-radio wireless device, comprising:

a discontinuous reception (DRX) module configured to apply DRX to a radio transceiver in the multi-radio wireless device with a plurality of coexisting radio transceivers, wherein one of a 2 milliseconds (ms), 5 ms or 8 ms cycle start offset period is selected for a long DRX cycle of the radio transceiver to reduce in-device interference between the plurality of coexisting radio transceivers, the DRX module configured to apply a 2 ms, 5 ms, or 8 ms long DRX cycle to provide additional DRX patterns to reduce in-device interference, wherein the 2 ms long DRX cycle and the 5 ms long DRX cycle provides a plurality of Hybrid Automatic Repeat Request (HARQ) reservation patterns for Long Term Evolution (LTE) Time Division Duplex (LTE-TDD) and the 8 ms long DRX cycle corresponds to eight HARQ reservation patterns for LTE Frequency Division Duplex (FDD), wherein the DRX module is stored in a digital memory device or is implemented in a hardware circuit;

a channel state information (CSI) reference resource subframe selection module configured to select a downlink CSI reference resource subframe with no in-device interference from the plurality of coexisting radio transceivers in the multi-radio wireless device, wherein the downlink CSI reference resource subframe with no in-device interference that is selected is within an unscheduled period of the long DRX cycle of the radio transceiver, wherein CSI for the multi-radio wireless device is determined using the selected downlink CSI reference resource subframe with no in-device interference to obtain an accurate CSI for the multi-radio wireless device, wherein the CSI reference resource subframe selection module is stored in a digital memory device or is implemented in a hardware circuit; and

a channel state information (CSI) reporting module configured to periodically report the CSI, from the multi-radio wireless device to an evolved node B (eNB), at a CSI reporting subframe, wherein the CSI reporting subframe is located at least four subframes after the downlink CSI reference resource subframe such that the CSI reporting subframe is not impacted by in-device interference, wherein the CSI is reported during a transition from the unscheduled period of the long DRX cycle to a scheduling period of a subsequent long DRX cycle, wherein the CSI reporting module is stored in a digital memory device or is implemented in a hardware circuit.

9. The multi-radio wireless device of claim 8, wherein the plurality of coexisting radio transceivers include at least two Radio Access Technologies (RATs), the RATs comprising:

a Third Generation Partnership Project Long Term Evolution (3GPP LTE) Release 8, 9, 10 or 11 radio transceiver, a Wireless Local Access Network (WLAN) transceiver, a Bluetooth transceiver, and a Global Navigation Satellite System (GNSS) receiver.

10. The multi-radio wireless device of claim 8, wherein the CSI reported to the eNB does not reduce throughput due to in-device interference in the downlink CSI reference resource subframe from the plurality of coexisting radio transceivers in the multi-radio wireless device.

11. The multi-radio wireless device of claim 8, wherein the CSI comprises at least one of a channel quality indicator (CQI), a precoding matrix indicator (PMI), and a rank indicator (RI).

12. The multi-radio wireless device of claim 8, wherein the CSI reporting module is further configured to periodically report the CSI to the eNB during an uplink subframe, wherein the uplink subframe occurs at least four subframes after the downlink CSI reference resource subframe.

13. The multi-radio wireless device of claim 8, wherein the downlink CSI reference resource subframe is within a time period that does not correspond with a different coexisting radio transceiver in the multi-radio wireless device transmitting during an uplink subframe.

14. The multi-radio wireless device of claim 8, wherein the downlink CSI reference resource subframe is within a scheduling period of the long DRX cycle of the radio transceiver.