WIFI VIRTUAL CARRIER SENSE FOR LTE/WIFI CO-CHANNEL COORDINATION

• US 20170006632A1
• Filed: 09/26/2014
• Published: 01/05/2017
• Est. Priority Date: 11/27/2013
• Status: Abandoned Application

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Elliott, Brent, Sergeyev, Vadim Sergeyevich, Bashar, Shafi, Han, Seunghee, Davydov, Alexei Vladimirovich, Fwu, Jong-Kae
• Application Number:
  US15/022,534
• Publication Number:
  US 20170006632A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/2621 using frequency division multiple access [FDMA] H04B7/2615 takes precedence
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/1825 Adaptation of specific ARQ protocol parameters according to transmission conditions
• CPC Class Codes: H04L 27/2607 Cyclic extensions
• CPC Class Codes: H04L 47/25 with rate being modified by the source upon detecting a change of network conditions
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• 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 5/0078 Timing of 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 5/22 using time-division multiplexing
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 69/163 In-band adaptation of TCP data exchange; In-band control procedures
• CPC Class Codes: H04L 69/321 Interlayer communication protocols or service data unit [SDU] definitions; Interfaces between layers
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04L 69/326 in the transport layer [OSI layer 4] H04L69/16 takes precedence
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 16/24 Cell structures
• CPC Class Codes: H04W 28/0205 : at the air interface dynamic wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 36/0069 : in case of dual connectivity, e.g. decoupled uplink/downlink
• CPC Class Codes: H04W 36/0083 : Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
• CPC Class Codes: H04W 40/30 : for proactive routing
• CPC Class Codes: H04W 52/0216 : using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0254 : detecting a user operation or a tactile contact or a motion of the device
• CPC Class Codes: H04W 72/02 : Selection of wireless resources by user or terminal
• 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 72/21 : 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 72/51 : based on terminal or device properties
• CPC Class Codes: H04W 74/04 : Scheduled access hybrid access H04W74/02
• 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 80/06 : Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless transmission control protocol/Internet protocol [TCP/IP] or user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04W 84/12 : WLAN [Wireless Local Area Networks]
• 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 88/10 : adapted for operation in multiple networks, e.g. multi-mode access points
• CPC Class Codes: Y02D 30/50 : in wire-line communication networks, e.g. low power modes or reduced link rate
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

A wireless cellular device comprises physical layer circuitry configured to transmit and receive radio frequency electrical signals to communicate directly with one or more separate wireless devices using a communication channel of a cellular network and a WiFi communication channel of a WiFi communication spectrum; and processing circuitry configured to initiate transmission of a WiFi subframe via the WiFi communication channel to reserve communication time on the WiFi communication channel for use by the same or a different cellular device during the reserved communication time.

Claims

1-25. -25. (canceled)

26. A wireless cellular device comprising:

physical layer circuitry configured to transmit and receive radio frequency electrical signals to communicate directly with one or more separate wireless devices using a communication channel of a cellular network and a WiFi communication channel of a WiFi communication spectrum; and

processing circuitry configured to initiate transmission of a WiFi subframe via the WiFi communication channel to reserve communication time on the WiFi communication channel for use by the same or a different cellular device during the reserved communication time.

27. The cellular device of claim 26, wherein the cellular device includes at least one of a long term evolution (LTE) cellular device, an advanced LTE cellular device, and a fifth generation (5G) LTE cellular device.

28. The cellular device of claim 26, wherein the processing circuitry is configured to initiate transmission of a clear to send (CTS) message of a WiFi communication protocol to reserve the communication time on the WiFi communication channel.

29. The cellular device of claim 26, wherein the processing circuitry is configured to initiate transmission of a request to send (RTS) message of a WiFi communication protocol to reserve the communication time on the WiFi communication channel.

30. The cellular device of claim 26, wherein the processing circuitry is configured to initiate transmission of a CTS message of a WiFi communication protocol to reserve the communication time in response to detecting an RTS message of the WiFi communication protocol transmitted by a separate cellular device.

31. The cellular device of claim 26, wherein the processing circuitry is configured to initiate transmission of a WiFi communication protocol header to reserve the communication time on the WiFi communication channel.

32. The cellular device of claim 26, wherein the processing circuitry is configured to initiate a contention free period end (CF-end) frame of a WiFi protocol to end the reserved communication time.

33. The cellular device of claim 26, wherein the processing circuitry is configured to align transmission of a WiFi subframe by the cellular device according to a sensed WiFi transmission by a WiFi device.

34. The cellular device of claim 26, wherein the processing circuitry is configured to initiate transmission of a message according to a WiFi communication protocol, wherein the message includes a duration field to indicate an amount of time to reserve the WiFi communication channel.

35. The cellular device of claim 34, including one or more antennas electrically connected to the physical layer circuitry and configured to sense communication activity on the WiFi communication channel, and wherein the processing circuitry is configured to adjust a value of the duration field according to the sensed communication activity.

36. The cellular device of claim 26, wherein the processing circuitry is configured to initiate transmission of a plurality of messages according to a WiFi communication protocol to reserve communication time on a plurality of WiFi communication channels.

37. The cellular device of claim 26, including one or more antennas electrically connected to the physical layer circuitry and configured to sense communication activity on the WiFi communication channel, and wherein the controller is configured to adjust a transmission time of the WiFi communication protocol message according to the sensed communication activity.

38. The cellular device of claim 26, including one or more antennas electrically connected to the physical layer circuitry and configured to sense communication activity on the cellular network, wherein the processing circuitry is configured to initiate transmission of a number of messages to reserve a number of communication time slots on the WiFi communication channel and to adjust the number of messages according to the determined communication activity on the cellular network.

39. A method of operating a wireless cellular device network, the method comprising:

transmitting a WiFi subframe via a WiFi communication channel of a WiFi communication spectrum using a first cellular device to reserve communication time on the WiFi communication channel; and

communicating information via the WiFi communication channel using the first cellular device or a separate cellular device during the reserved communication time.

40. The method of claim 39, wherein transmitting a WiFi subframe includes transmitting an RTS message of a WiFi communication protocol to reserve the communication time on the WiFi communication channel.

41. The method of claim 39, wherein transmitting a WiFi subframe includes transmitting a CTS message of a WiFi communication protocol to reserve the communication time on the WiFi communication channel.

42. The method of claim 39, wherein transmitting a WiFi subframe includes transmitting a WiFi communication protocol header to reserve the communication time on the WiFi communication channel.

43. The method of claim 39, wherein transmitting a WiFi subframe includes transmitting a WiFi communication protocol message having a duration field to indicate an amount of time to reserve the WiFi communication channel.

44. The method of claim 43, including sensing communication activity on a WiFi network using the first cellular device, and adjusting a value of the duration field according to the sensed communication activity.

45. A computer readable storage medium including instructions that when executed by hardware processing circuitry of a wireless cellular device cause the cellular device to:

transmit a WiFi subframe via a WiFi communication channel of a WiFi communication spectrum using a first cellular device to reserve communication time on the WiFi communication channel; and

communicate information via the WiFi communication channel using the first cellular device or a separate cellular device during the reserved communication time.

46. The computer readable storage medium of claim 45, including instructions that when executed by the cellular device cause the cellular device to transmit at least one of a WiFi protocol header, a RTS message or a CTS message of a WiFi communication protocol to reserve communication time for the cellular device on the WiFi communication channel.

47. The computer readable storage medium of claim 45, including instructions that when executed by the cellular device cause the cellular device to:

transmit a WiFi communication protocol message having a duration field to indicate an amount of time to reserve the communication channel of the WiFi communication channel;

sense communication activity on a WiFi communication channel; and

adjust a value of the duration field according to the sensed communication activity.

48. A wireless communication system comprising:

a first cellular device comprising;

physical layer circuitry configured to transmit and receive radio frequency electrical signals to communicate directly with one or more separate wireless devices using a communication channel of a cellular network and a WiFi communication channel of a WiFi communication spectrum;

one or more antennas electrically connected to the physical layer circuitry; and

processing circuitry configured to initiate transmission of a WiFi subframe via the WiFi communication channel to reserve communication time on the WiFi communication channel for use by the same or a different cellular device during the reserved communication time.

49. The wireless communication system of claim 48, wherein the first cellular device includes at least one of a cellular network node device or a cellular UE device.

50. The wireless communication system of claim 48, wherein the processing circuitry is configured to initiate transmission of at least one of a WiFi communication protocol header, an RTS packet or a CTS packet of a WiFi communication protocol to reserve the communication time on the WiFi communication channel.