Patent application number | Description | Published |
20080259833 | METHOD AND APPARATUS FOR CONTROLLING DATA TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM - Techniques for controlling data transmission are described. In an aspect, a user equipment (UE) determines whether to send a packet based on available transmit power. The UE determines a first packet size based on the available transmit power and sends a packet of the first packet size if it is equal to or larger than a minimum packet size. The UE sends a packet of a second packet size (e.g., the minimum packet size) if the first packet size is smaller than the minimum packet size and if at least one condition is met, e.g., the available transmit power is greater than a power threshold and the delay of a packet to send is larger than a delay threshold. In another aspect, the UE operates in a discontinuous transmission (DTX) mode and cancels the DTX mode if the delay of a packet to send exceeds a threshold. | 10-23-2008 |
20090034474 | Method and apparatus for dynamic adjustment of uplink transmission time - Systems and methods for dynamically adjusting the transmission time interval (TTI) for a communications system are presented. The described aspects provide for dynamically adjusting the TTI in a communication session between a base station or nodeB and a wireless device or user equipment between a shorter TTI, which can provide increased data throughput and lower power consumption, and a longer TTI, which can provide more rugged communication link connections. By dynamically adjusting the TTI, the communications link can be optimized for the given communication channel conditions. Determinations, based on indicia related to the communications system conditions, can be employed in dynamic TTI adjustment. These determinations can be formed centrally at the Radio Network Controller (RNC), at the RNC supplemented with user equipment (UE) available information, or formed in a distributed manner between the RNC and UE across a communications system. | 02-05-2009 |
20090185528 | SHARED RESOURCE ALLOCATION - A base station can employ a shared resource, such as a control channel, for communication with a mobile device. The mobile device can be granted the exclusive access to the shared resource for a limited time. The exclusive access can be such that there is not a limit in message size that can be transferred across the shared resource. To improve operation, the exclusive grant can be applied until it is determined that appropriate packets are transferred. | 07-23-2009 |
20100202331 | CLOSED-LOOP POWER CONTROL IN MULTI-CARRIER HIGH-SPEED UPLINK PACKET ACCESS - A method for wireless communications is provided. The method includes applying independent power controls to two or more carriers from a set of high speed packet access signals. The method includes monitoring power across the two or more carriers to determine power levels for the set of high speed packet access signals. The method also includes automatically adjusting at least one of the independent power controls in view of the determined power levels for the set of high speed packet access signals. | 08-12-2010 |
20100202392 | POWER ALLOCATION IN MULTI-CARRIER ENHANCED UPLINK - Systems and methodologies are described that facilitate split a common total power resource among a plurality of carriers. A power distribution scheme can be employed jointly across the plurality of carriers to determine an amount of power to allocate to respective carriers. Based upon an amount of power allocated, a packet format can be selected for each carrier based upon the amount of power allocated to the carrier and/or a serving grant associated with the carrier. | 08-12-2010 |
20100238825 | LOOP POWER CONTROLS FOR MULTI-CARRIER HIGH-SPEED UPLINK PACKET ACCESS - A method for wireless communications is provided. The method includes applying independent power controls to two or more carriers from a set of high speed packet access signals. The method includes monitoring power across the two or more carriers to determine power levels for the set of high speed packet access signals. The method also includes adjusting at least one of an open loop control, an inner loop control, or an outer loop control in view of the power levels for the set of packet access signals. | 09-23-2010 |
20100238882 | Scheduling information for wireless communications - Systems and methods for communicating over multiple carriers are described herein. A predetermined event triggers the generation of scheduling information for two or more of the carriers. The predetermined event may comprise expiration of a timer set for at least one of the two or more carriers, storing data in a buffer having a higher transmission priority than data previously stored in the buffer, or changing at least one of the two or more carriers from being served by a first cell to being served by a second cell. | 09-23-2010 |
20100271939 | CONTROL OF RADIO LINKS IN A MULTIPLE CARRIER SYSTEM - Methods, systems and apparatuses for controlling radio links in a multiple carrier wireless communication system are disclosed. A method can include aggregating control functions from at least two carriers onto one carrier to form an anchor carrier and one or more associated secondary carriers; establishing communication links for the anchor carrier and each secondary carrier; and controlling communication based on the anchor carrier. | 10-28-2010 |
20100322090 | POWER SCALING FOR MULTI-CARRIER HIGH-SPEED UPLINK PACKET ACCESS - A method for wireless communications is provided. The method includes applying independent power controls to two or more carriers from a set of high speed packet access signals. The method includes monitoring power across the two or more carriers to determine power levels for the set of high speed packet access signals. The method also includes automatically scaling at least one of the independent power controls in view of the determined power levels for the set of high speed packet access signals. The method also includes setting the minimum power offset of the data channel independently on each carrier. | 12-23-2010 |
20110090806 | RADIO LINK CONTROL PROTOCOL DATA UNIT SIZE SELECTION IN DUAL CARRIER HSUPA - A method for using a flexible size radio link control (RLC) protocol data unit (PDU) on an uplink is described. A request for an RLC PDU is received from a medium access control (MAC) layer. Radio conditions for a first uplink carrier and a second uplink carrier are determined. A size of the RLC PDU is selected based on the radio conditions. The RLC PDU is generated. The RLC PDU is sent to the MAC layer. | 04-21-2011 |
20110188385 | RADIO LINK CONTROL PROTOCOL DATA UNIT SIZE SELECTION - An apparatus for selecting a size of a radio link control (RLC) protocol data unit (PDU) is described. The apparatus includes means for receiving a request for an RLC PDU from a medium access control (MAC) layer. The apparatus further includes means for selecting the size of the RLC PDU. The apparatus also includes means for generating the RLC PDU. The apparatus further includes means for sending the RLC PDU to the MAC layer. | 08-04-2011 |
20110205983 | SENDING AN UPLINK ORDER TO ACTIVE SET BASE STATIONS - A method for sending an uplink order to active set base stations is disclosed. A new mode of operation for a wireless communication device is determined. A transmission is sent on an uplink control channel to active set base stations that indicates the new mode. The transmission from the wireless communication device is received on the E-DPCCH. It is determined if the transmission is an uplink order. The new mode of operation is transitioned to. Subsequent transmissions from the wireless communication device are interpreted using the new mode of operation if the transmission is an uplink order. | 08-25-2011 |
20140198736 | MANAGEMENT OF WIRELESS COMMUNICATIONS USING INFORMATION RELATING TO SCHEDULING REQUEST PERFORMANCE - Methods, systems, and devices for managing wireless communications are described. In one embodiment, information relating to a scheduling request performance of a first set of one or more user equipments (UEs) may be compiled, and at least a subset of the information may be transmitted to trigger an identification of an adjustment of an uplink power control setting of a second set of one or more UEs. In another embodiment, information to trigger an identification of an adjustment of an uplink power control setting for transmitting scheduling requests may be received from each of a first plurality of UEs. The information may be analyzed, and a power adjustment may be identified for the uplink power control setting for at least one of a second plurality of UEs. The identified power adjustment may then be transmitted to the at least one of the second plurality of UEs. | 07-17-2014 |
20140301201 | MANAGEMENT OF COMMUNICATIONS WITH MULTIPLE ACCESS POINTS BASED ON INTER-ACCESS POINT COMMUNICATIONS - Methods, systems, and apparatuses are described for managing communications in a wireless communications system. An inter-access point communications link between a first access point and a second access point is established. At the first access point, one or more performance statistics from the second access point are received via the inter-access point communications link. Communication to or from a mobile device via the first access point and the second access point, is managed based at least in part on the received performance statistics. | 10-09-2014 |
20140321286 | METHOD AND APPARATUS FOR DYNAMIC ADJUSTMENT OF UPLINK TRANSMISSION TIME - Systems and methods for dynamically adjusting the transmission time interval (TTI) for a communications system are presented. The described aspects provide for dynamically adjusting the TTI in a communication session between a base station or nodeB and a wireless device or user equipment between a shorter TTI, which can provide increased data throughput and lower power consumption, and a longer TTI, which can provide more rugged communication link connections. By dynamically adjusting the TTI, the communications link can be optimized for the given communication channel conditions. Determinations, based on indicia related to the communications system conditions, can be employed in dynamic TTI adjustment. These determinations can be formed centrally at the Radio Network Controller (RNC), at the RNC supplemented with user equipment (UE) available information, or formed in a distributed manner between the RNC and UE across a communications system. | 10-30-2014 |
20140321440 | METHOD AND APPARATUS FOR DYNAMIC ADJUSTMENT OF UPLINK TRANSMISSION TIME - Systems and methods for dynamically adjusting the transmission time interval (TTI) for a communications system are presented. The described aspects provide for dynamically adjusting the TTI in a communication session between a base station or nodeB and a wireless device or user equipment between a shorter TTI, which can provide increased data throughput and lower power consumption, and a longer TTI, which can provide more rugged communication link connections. By dynamically adjusting the TTI, the communications link can be optimized for the given communication channel conditions. Determinations, based on indicia related to the communications system conditions, can be employed in dynamic TTI adjustment. These determinations can be formed centrally at the Radio Network Controller (RNC), at the RNC supplemented with user equipment (UE) available information, or formed in a distributed manner between the RNC and UE across a communications system. | 10-30-2014 |
20140321447 | X2 SETUP AND ROUTING AT AN X2-GATEWAY - An access point may perform a method for X2 communication set up in a wireless communication network. The method may include discovering a neighbor node at an access point, optionally in response to detecting a new neighbor node, or an address parameter change at a neighbor node. The method may further include transmitting to an X2 gateway (X2-GW), a registration message comprising an address of the neighbor node for X2 communication. The registration message may include at least two addresses of the at least one neighbor node, the two addresses corresponding to addresses at a higher protocol layer and a lower protocol layer, for example a transport network layer (TNL) address and radio network layer (RNL) address of the at least one neighbor node. The access point may further receive an acknowledgement message from the X2-GW for the registration message. | 10-30-2014 |
20150029999 | TECHNIQUES FOR SELECTED INTERNET PROTOCOL TRAFFIC OFFLOAD SUPPORT AT AN ASSISTING ENODEB - Techniques are described for selected internet protocol traffic offload (SIPTO) support at an assisting eNodeB. A connection may be established between a first eNodeB and a UE, and it may be determined whether a connection exists or is pending between the UE and a second eNodeB. A message may be transmitted to a mobility management entity (MME), the message associating a network address of the second eNodeB with SIPTO connectivity for the UE. | 01-29-2015 |
20150043486 | DISJOINT BEARER ROUTING - Methods and apparatus for switching bearers between radio access technologies (RATs) are described. According to aspects of the present disclosure, the uplink part of a bearer may be served by one RAT, while the downlink part of the bearer is served by another RAT. A part of a bearer may be served by more than one RAT. Methods and apparatus for communicating via bearer with parts served by differing RATs are also described. | 02-12-2015 |