Indication of user equipment mobility state to enhance mobility and call performance

• US 8,380,206 B1
• Filed: 08/31/2011
• Issued: 02/19/2013
• Est. Priority Date: 08/19/2011
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Renesas Mobile Corporation (Renesas Electronics Corporation)
• Inventors: Laitinen, Pasi Petteri, Suronen, Antti-Eemeli, Kangas, Antti Olavi
• Primary Examiner(s): Sobutka, Philip
• Application Number:
  US13/222,074
• Publication Number:
  US 20130045765A1
• Time in Patent Office: 538 Days
• Field of Search: None
• US Class Current: 455/441
• CPC Class Codes: H04W 36/0094 Definition of hand-off measurement parameters
• CPC Class Codes: H04W 36/324 by mobility data, e.g. speed data
• CPC Class Codes: H04W 76/10 Connection setup

Abstract

A user equipment UE reports its mobility state in signaling for establishing, re-establishing, or re-configuring a radio connection between the UE and a network access node. In one embodiment the reported mobility state is selected from among normal; medium and high. In another embodiment the reported mobility state informs of a number of cell changes the UE has performed within a predetermined evaluation period. The UE may also include an indication whether a hysteresis period for entering into a normal mobility state is running for the UE. The network configures the UE in dependence on the reported mobility state, such as setting a parameter for measuring or reporting neighbor cells (e.g., suspend a serving cell quality threshold as a condition for measuring/reporting; limit inter-frequency and/or inter-radio access technology reporting; set a shortest measurement reporting gap; disable an event trigger; and/or set layer 3 filtering of measurement results for faster reporting).

Claims

1. An apparatus for configuring user equipment comprising:

at least one processor; and

at least one computer readable memory including computer program code;

the at least one memory and the computer program code configured with the at least one processor to cause the apparatus to perform;

determining a mobility state of a user equipment from signaling received from the user equipment for establishing, re-establishing, or re-configuring a radio connection between the user equipment and a network access node;

configuring the user equipment in dependence on the determined mobility state; and

,

wherein the user equipment performs at least one of;

suspending a serving cell quality threshold as a condition for measuring or reporting neighbor cells;

limiting inter-frequency and/or inter-radio access technology reporting of neighbor cells;

setting a shortest measurement reporting gap period for reporting neighbor cells;

disabling an event trigger for reporting neighbor cells; and

setting layer 3 filtering of measurement results to enable faster reporting of neighbor cells.

2. The apparatus according to claim 1, wherein configuring the user equipment comprises setting at least one parameter for the user equipment to measure or report neighbor cells.

3. The apparatus according to claim 1, wherein configuring the user equipment comprises handing over the user equipment from a capacity layer of the network access node to a coverage layer having a lower frequency band and a larger cell than the capacity layer.

4. The apparatus according to claim 1, in which the apparatus comprises the network access node.

5. A non-transient computer readable memory storing a computer program executable by a processor which, when executed by the processor, causes the performance of operations comprising:

determining a mobility state of a user equipment from signaling received from the user equipment for establishing, re-establishing, or re-configuring a radio connection between the user equipment and a network access node;

configuring the user equipment in dependence on the determined mobility state; and

wherein the configuring the user equipment comprises instructing the user equipment to perform at least one of;

suspending a serving cell quality threshold as a condition for measuring or reporting neighbor cells;

limiting at least one of inter-frequency and inter-radio access technology reporting of neighbor cells;

setting a shortest measurement reporting gap period for reporting neighbor cells;

disabling an event trigger for reporting neighbor cells; and

setting layer 3 filtering of measurement results to enable faster reporting of neighbor cells.