Method and Apparatus for Uplink and/or Downlink Power Control in a Radio Communication Network

Patent metadata

Field	Value
Publication number	US-2016374030-A1
Application number	US-201315104588-A
Country	US
Kind code	A1
Filing date	Dec 16, 2013
Priority date	Dec 16, 2013
Publication date	Dec 22, 2016
Grant date	—

Abstract

An apparatus and a method for uplink and/or downlink power control in a radio communication network are provided. The method comprises determining ( 120 ) a relationship between a load of a serving wireless access point and a load of at least one neighbouring wireless access point; and determining ( 130 ) an uplink or downlink transmission power based on the determined load relationship.

First claim

1 - 29 . (canceled)

30 . A method for uplink and/or downlink power control in a radio communication network, the method comprising:
determining a relationship between a load of a serving wireless access point and a load of at least one neighboring wireless access point, and determining an uplink or downlink transmission power based on the determined load relationship.

31 . The method of claim 30 , wherein the load relationship is determined based on load information of the serving wireless access point and the at least one neighboring wireless access point respectively.

32 . The method of claim 30 , further comprising obtaining load information of a serving wireless access point and the at least one neighboring wireless access point.

33 . The method of claim 31 , wherein the load information pertains to at least one of: radio resource utilization of the serving/neighboring wireless access nodes; number of wireless devices connected to the serving/neighboring wireless access nodes; amount of volume in data buffers of the serving/neighboring wireless access nodes; and indication of an interference situation of the serving and/or neighboring wireless access nodes.

34 . The method of claim 30 , wherein the relationship between the load of the serving wireless access point and the load of the at least one neighboring wireless access point is determined as a ratio between the load of the serving wireless access point and the load of the at least one neighboring wireless access point.

35 . The method of claim 30 , wherein the method is performed by the serving wireless access point, further comprising receiving, from the wireless device, signaling comprising an indication of which neighboring wireless access point(s) to obtain load information from.

36 . The method of claim 30 , wherein load information of at least two neighboring wireless access points is obtained, the method comprising determining an average load for the at least two neighboring wireless access points, wherein determining the load relationship comprises determining the load relationship between the load of the serving wireless access point and the average load for the at least two neighboring wireless access point.

37 . The method of claim 30 , wherein load information of at least two neighboring wireless access points is obtained, the method comprising determining at least a first load relationship between the serving wireless access point and a first neighboring wireless access point and a second load relationship between the serving wireless access point and a second neighboring wireless access point, combining the first and the second load relationship, wherein determining the load relationship between the load of the serving wireless access point and the load of the at least two neighboring wireless access point comprises determining a combined load relationship.

38 . The method of claim 30 , wherein load information comprises an indication of a current load as a ratio of a maximum load.

39 . The method of claim 30 , wherein determining an uplink transmission power comprises taking into account a received power target, pathloss, pathloss compensation, load of the serving wireless access point, and a load of the neighboring wireless access points.

40 . The method of claim 39 , wherein determining an uplink transmission power comprises determining a transmit Power Spectrum Density, PSD TX , target by PSD TX =P Baseline +Δ(Load SC , Load NC i ) where P Baseline is the received power target, PL is pathloss, α is the pathloss compensation factor, Load s c is the load of the serving wireless access point, Load NC is the load of the neighboring wireless access point(s), and δ CL is a closed loop component.

41 . The method of claim 30 , wherein the method is performed by the wireless device, further comprising signaling the load relationship to the serving wireless access point.

42 . The method of claim 30 , wherein the method is performed by the wireless device, further comprising receiving baseline information pertaining to uplink power control from the serving wireless access point, determining the uplink transmission power based on the determined load relationship and on the received information.

43 . An apparatus adapted for uplink and/or downlink power control in a radio communication network, the apparatus comprising a processor and a memory, the memory comprising instructions that when executed by the processor causes the apparatus to:
determine a relationship between a load of a serving wireless access point and a load of at least one neighboring wireless access point, and to determine an uplink or downlink transmission power based on the determined load relationship.

44 . The apparatus of claim 43 , wherein the load relationship is determined based on load information of the serving wireless access point and the at least one neighboring wireless access point respectively.

45 . The apparatus of claim 43 , wherein the memory further comprises instructions that when executed by the processor causes the apparatus to obtain load information of a serving wireless access point and the at least one neighboring wireless access point.

46 . The apparatus of claim 44 , wherein the load information pertains to at least one of:
radio resource utilization of the serving/neighboring wireless access nodes; number of wireless devices connected to the serving/neighboring wireless access nodes; amount of volume in data buffers of the serving/neighboring wireless access nodes; and indication of an interference situation of the serving and/or neighboring wireless access nodes.

47 . The apparatus of claim 43 , wherein the relationship between the load of the serving wireless access point and the load of the at least one neighboring wireless access point is determined as a ratio between the load of the serving wireless access point and the load of the at least one neighboring wireless access point.

48 . The apparatus of claim 43 , wherein the apparatus is the serving wireless access point, wherein the memory further comprises instructions that when executed by the processor causes the apparatus to receive, from the wireless device, signaling comprising an indication of which neighboring wireless access point(s) to obtain load information from.

49 . The apparatus of claim 43 , wherein load information of at least two neighboring wireless access points is obtained, wherein the memory further comprises instructions that when executed by the processor causes the apparatus to determine an average load for the at least two neighboring wireless access points, wherein determining the load relationship comprises determining the load relationship between the load of the serving wireless access point and the average load for the at least two neighboring wireless access point.

50 . The apparatus of claim 43 , wherein load information of at least two neighboring wireless access points is obtained, wherein the memory further comprises instructions that when executed by the processor causes the apparatus to determine at least a first load relationship between the serving wireless access point and a first neighboring wireless access point and a second load relationship between the serving wireless access point and a second neighboring wireless access point, and to combine the first and the second load relationship, wherein determining the load relationship between the load of the serving wireless access point and the load of

Assignees

• ERICSSON TELEFON AB L M (publ)

Inventors

• Koutsimanis Chrysostomos
• Lioliou Panagiota

Classifications

• H04W52/343 Primary

  taking into account loading or congestion level · CPC title