Managing power consumption in base stations and remote access points

Patent metadata

Field	Value
Publication number	US-2016174150-A1
Application number	US-201615046634-A
Country	US
Kind code	A1
Filing date	Feb 18, 2016
Priority date	Jan 8, 2010
Publication date	Jun 16, 2016
Grant date	—

Abstract

A wireless transmit/receive unit (WTRU) in communication with a wireless network that may include a base station (or base node) and a cell that may be in a dormant mode is contemplated. The WTRU may determine that the WTRU may be within a vicinity of the cell and may generate a report that includes one or more measurements related to a location of the WTRU. The WTRU may transmit the report to the network and may receive an indication to perform one or more measurements related to the cell. The one or more measurements related to the cell may be based on a Common Pilot Channel (CPICH), a Synchronization Channel (SCH), and/or a Broadcast Channel (Primary Common Control Physical Channel) (BCH P-CCPCH) that may be transmitted by the cell upon a command from a base node.

First claim

1 .- 15 . (canceled)

16 . A base node in communication with a wireless network, the base node comprising:
a processor, the processor configured to:
determine an energy-saving mode;
place the base node into the determined energy-saving mode; and
provide an indication of an energy-saving mode status.

17 . The base node of claim 16 , wherein the providing the indication of the energy-saving mode status includes at least one of: setting one or more flags in a transmitted Master Information Block (MIB), changing a Common Pilot Channel scrambling code, sending a paging message, or sending a dedicated message.

18 . The base node of claim 16 , wherein the determining the energy-saving mode includes at least one of: determining an energy-saving mode schedule provided by a controlling radio network controller (CRNC) or determining a low amount of activity based on a low activity detection algorithm.

19 . The base node of claim 16 , wherein the base node is a home Node B (HNB) and the processor is further configured to transition the base node from the determined energy-saving mode to an active mode based, at least in part, on a Minimization Drive Test measurement for the HNB.

20 . The base node of claim 16 , wherein the energy-saving mode includes at least one of:
a first energy-saving mode, wherein the first energy-saving mode includes broadcasting only a Master Information Block (MIB) message and System Information Block (SIB) messages that include cell access information; a second energy-saving mode, wherein the second energy-saving mode includes broadcasting only a MIB message; a third energy-saving mode, wherein the third energy-saving mode includes broadcasting only on a Common Pilot Channel (CPICH); or a fourth energy-saving mode, wherein the fourth energy-saving mode includes transmitting user-plane data and not transmitting on access-related downlink channels.

21 . A method performed by a base node, the base node in communication with a wireless network, the method comprising:
determining an energy-saving mode; placing the base node into the determined energy-saving mode; and providing an indication of an energy-saving mode status.

22 . The method of claim 21 , wherein the providing the indication of the energy-saving mode status includes at least one of: setting one or more flags in a transmitted Master Information Block (MIB), changing a Common Pilot Channel scrambling code, sending a paging message, or sending a dedicated message.

23 . The method of claim 21 , wherein the determining the energy-saving mode includes at least one of: determining an energy-saving mode schedule provided by a controlling radio network controller (CRNC), or determining a low amount of activity based on a low activity detection algorithm.

24 . The method of claim 21 , wherein the base node is a home Node B (HNB) and the method further includes transitioning the base node from the determined energy-saving mode to an active mode based, at least in part, on a Minimization Drive Test measurement for the HNB.

25 . The method of claim 21 , wherein the energy-saving mode includes at least one of:
a first energy-saving mode, wherein the first energy-saving mode includes broadcasting only a Master Information Block (MIB) message and System Information Block (SIB) messages that include cell access information; a second energy-saving mode, wherein the second energy-saving mode includes broadcasting only a MIB message; a third energy-saving mode, wherein the third energy-saving mode includes broadcasting only on a Common Pilot Channel (CPICH); or a fourth energy-saving mode, wherein the fourth energy-saving mode includes transmitting user-plane data and not transmitting on access-related downlink channels.

26 . A wireless transmit/receive unit (WTRU), the WTRU being in communication with a wireless network, the WTRU comprising:
a receiver, the receiver configured at least to:
receive a measurement configuration from a node of the wireless network, the measurement configuration including instructions to perform one or more location measurements related to a location of the WTRU relative to a remote access point cell;
a processor, the processor configured at least to:
generate a first report, the first report including a first location measurement related to the location of the WTRU relative to the remote access point cell; and
a transmitter, the transmitter configured at least to:
transmit the first report to the node of the wireless network, the processor being further configured to:
generate up to N further reports including up to N more location measurements related to the location of the WTRU relative to the remote access point cell, N indicting a maximum number of reports to be generated by the WTRU that include the one or more location measurements related to the location of the WTRU relative to the remote access point cell, N being determined by the WTRU autonomously;
determine that at least one of the first location measurement or the up to N more location measurements requires a wireless network service; and
utilize the wireless network service for the at least one of the first location measurement or the up to N more location measurements, the transmitter being further configured to:
transmit the generated up to N further reports to the node of the wireless network; and
transmit a vicinity indication to the node upon any one of the first report or the up to N reports indicating that the WTRU has satisfied a vicinity criteria for the remote access point cell.

27 . The WTRU of claim 26 , wherein the transmitter is further configured to:
transmit a request to the node for the wireless network service, and the receiver being further configured to: receive an acknowledgement for the wireless network service, the acknowledgement including one or more parameters for the wireless network service.

28 . The WTRU of claim 26 , wherein the at least one of the first location measurement or the up to N more location measurements are based on at least one of a Common Pilot Channel (CPICH), a Synchronization Channel (SCH), or Broadcast Channel (Primary Common Control Physical Channel) (BCH P-CCPCH) being transmitted by the remote access point cell upon a command from the wireless network.

29 . The WTRU of claim 26 , wherein the at least one of the first location measurement or the up to N more location measurements are made on a designated frequency.

30 . The WTRU of claim 26 , wherein the one or more parameters for the wireless network service include parameters for at least one of an Idle Period in Downlink (IPDL) support or a compressed mode support.

31 . The WTRU of claim 26 , wherein the remote access point cell is at least one of a pico cell or a femto cell.

32 . A method performed by a wireless transmit/receive unit (WTRU), the WTRU being in communication with a wireless network, the method comprising:
receiving a measurement configuration from a node of the wireless network, the measurement configuration including instructions to perform one or more location measurements related to a location of the WTRU relative to a remote access point cell; generating a first report, the first report including a first location measurement related to the location of the WTRU relative to the remote access point cell; transmitting the first report to the node of the wireless network; generating up to N further reports including up to N more location measurements related to the location of the WTRU relative to the remote access point cell, N indic

Assignees

• Interdigital Patent Holdings

Inventors

• Comsa Virgil
• Pani Diana
• Levy Joseph S
• Gomes Sylvie
• Pelletier Benoit
• Cai Lujing

Classifications

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04W52/0206 Primary

  in access points, e.g. base stations · CPC title

• H04W64/003

  locating network equipment · CPC title

• H04W72/04

  Wireless resource allocation · CPC title

• H04L5/0055

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title