摘要:
In one embodiment of a method of managing transmission delay in a wireless communication system, a length of time over which a mobile station is permitted to re-transmit a packet or portion of a packet over a channel is controlled such that the length of time depends on at least one of a position of the mobile station, a temporal fading characteristic of the mobile station, and a radio frequency characteristic of the channel.
摘要:
In one embodiment of a method of managing transmission delay in a wireless communication system, a length of time over which a mobile station is permitted to re-transmit a packet or portion of a packet over a channel is controlled such that the length of time depends on at least one of a position of the mobile station, a temporal fading characteristic of the mobile station, and a radio frequency characteristic of the channel.
摘要:
In the method, an average user throughout over all active users is computed, and each user's user perceived throughput is compared against the computed average throughout. Based on the comparison, the scheduling of the plurality of users is prioritized. In an embodiment, a priority adjustment factor is applied to each user to prioritize the scheduling of users to receive a data transmission. The priority adjustment factor is determined based in part on an update function. The update function is proportional to a calculated difference between each user's user perceived throughput and the average user throughput. Based on the sign of the update function, the priority adjustment factor is either incremented or decremented, and hence, prioritization of users is ordered. The output of the scheduler is user identifying information that informs the base station to transmit data in a current time slot to the identified user determined as the highest priority user by the scheduling method.
摘要:
The present invention provides a method for determining a spatial channel model. The method may include generating a three-dimensional scattering cloud model based on a scattering environment proximate a mobile unit and a configuration of a plurality of antennas.
摘要:
The present invention provides a method and an apparatus for controlling transmission power of a wireless unit. The method includes providing a power control in a reverse link to a network that transmits data on a traffic channel in a bursty manner based on a performance metric of a channel with continuous transmission of other data than on the traffic channel. To provide a power control in a reverse link of a spread-spectrum wireless data network a method and an apparatus are provided for combining performance of a quality of service from at least one of a first quality feedback channel and a second quality feedback channel with that of a pilot channel and providing an outer-loop power control in said reverse link for a wireless communication on a traffic channel based on said combined performance of the quality of service to control transmission power of a wireless unit. A quality of service metric may be associated with one or more channels of the reverse link to determine performance of such a channel when transmission of data on a traffic channel is bursty in nature. Using a performance metric, such as a quality of service metric of a pilot channel, a power control in the reverse link may be provided when data is not transmitted on the traffic channel, e.g., in a bursty traffic channel to control transmission power of a wireless unit. In this manner, the transmission power of the wireless unit may be controlled based on an outer-loop power control that provides a continuous control for a non-continuous transmission.
摘要:
The present invention provides a method for determining a spatial channel model. The method may include generating a three-dimensional scattering cloud model based on a scattering environment proximate a mobile unit and a configuration of a plurality of antennas.
摘要:
In the method, scheduling of a plurality of users for receiving transmitted data is prioritized within a communications system. A next data transmission among the plurality of users is allocated based on the prioritized scheduling.
摘要:
The present invention provides a method and an apparatus for controlling transmission power of a wireless unit. The method includes providing a power control in a reverse link to a network that transmits data on a traffic channel in a bursty manner based on a performance metric of a channel with continuous transmission of other data than on the traffic channel. To provide a power control in a reverse link of a spread-spectrum wireless data network a method and an apparatus are provided for combining performance of a quality of service from at least one of a first quality feedback channel and a second quality feedback channel with that of a pilot channel and providing an outer-loop power control in said reverse link for a wireless communication on a traffic channel based on said combined performance of the quality of service to control transmission power of a wireless unit. A quality of service metric may be associated with one or more channels of the reverse link to determine performance of such a channel when transmission of data on a traffic channel is bursty in nature. Using a performance metric, such as a quality of service metric of a pilot channel, a power control in the reverse link may be provided when data is not transmitted on the traffic channel, e.g., in a bursty traffic channel to control transmission power of a wireless unit. In this manner, the transmission power of the wireless unit may be controlled based on an outer-loop power control that provides a continuous control for a non-continuous transmission.
摘要:
In one embodiment, a relationship is determined between radio link protocol (RLP) sequence numbers in received RLP packets and real-time protocol (RTP) sequence numbers of RTP packets represented by the received RLP packets. A RTP sequence number associated with a compressed RTP packet is determined based on the determined relationship and at least one of the RLP sequence numbers of the received RLP packet or packets forming the compressed RTP packet. The compressed RTP packet does not include a RTP sequence number.
摘要:
Outer loop power control for a traffic channel includes using at least one output from another channel to determine an appropriate control threshold such as a signal-to-noise ratio when selected channel conditions exist. One example traffic channel condition comprises having insufficient data transmission to provide a direct measurement of packet error rate. Another example traffic channel condition used to determine when to use the other channel output is a transmission mode on the traffic channel. An example output used for setting the control threshold is a chip energy to noise ratio of a pilot channel associated with the traffic channel.