摘要:
A scheduling strategy utilizes a total call load metric in place of a reverse signal strength indicator metric for managing reverse link resources. In a disclosed example, a load control module (40) measures the reverse signal strength indicator (62) and measures an active call load (64) using known techniques. A relationship between the reverse signal strength indicator, the active cell load, an other cell load component and a jammer component provides the ability to determine the other cell load component and the jammer component. Once the other cell load component has been determined, a total call load based upon the active cell load component and the other cell load component provides a useful metric for allocating reverse link resources between existing users and for determining whether to allow a new user, for example. In a disclosed example, the total call load at a time for scheduled transmission is estimated based upon recently measured values. The total call load provides an ability to determine an available reverse link resource, which provides an ability to determine how to schedule users desiring to transmit on the reverse link.
摘要:
The capacity of a reverse link is improved by realizing a scheme to effect sharp changes in pilot channel transmit power (PCTP) and data channel to pilot power ratio (DCPR), coordinated with the start of the data channel transmission. The change in pilot power and data channel to pilot power ratio is also applicable to mobiles that use multiple pilots and/or multiple antennas at the transmitter and/or receiver.
摘要:
The present invention provides a method of scheduling guaranteed bit rate and/or maximum bit rate applications. Embodiments of the method may include setting, for a mobile node during a time interval, a first weight equal to a sum of a previous first weight associated with the mobile node during a previous time interval and a correction factor that is a linear function of a difference between a first bit rate and an indication of a throughput of the mobile node. Embodiments of the method may also include scheduling communication with the mobile node based on the first weight.
摘要:
A method is provided a wireless system for reliably transmitting context information in robust header compression at low signal energies. More particularly, the methodology of the invention provides an elongated virtual Transmission Time Interval (Super TTI) for the first few (in particular, the first) non-compressed packet (that includes upper layer headers) of a packet stream transmitted using ROHC compression. Improved reception reliability for the uncompressed packet, in particular to decode the headers, results by application to the Super TTI of a combination of TTI Bundling techniques, RLC segmentation and association with multiple HARQ processes and use of enough HARQ rounds.
摘要:
Improved ranking and grouping techniques are disclosed for communication systems such as a multiple input multiple output system. For instance, techniques are disclosed for ranking and grouping users that are eligible for single-user and/or multiple-user transmissions. In one case, ranking and grouping are performed independently and, in another case, ranking and grouping are performed jointly.
摘要:
A system and method for wireless communication includes multiplexing an EUDC downlink control channel so that it is transmitted like a downlink dedicated channel (DL-DPCH). The EUDC downlink control channel can be multiplexed with the DL-DPCH by code or by both code and time. The EUDC downlink control channel may be multiplexed with a downlink dedicated physical data channel (DL-DPDCH), a downlink dedicated physical control channel (DL-DPCCH), or both. In one embodiment, the EUDC downlink control channel is multiplexed by adding a multicode channel to a current DL-DPCH and treating the EUDC downlink control channel as a dedicated channel with power control functionality.
摘要:
A method for implementation of HARQ between a transmitting node and a receiving node in a communication network is provided. HARQ processes may be selected from a list for instantiation according to a policy that may deviate from strict first-in, first-out processing of packets. The greater flexibility that this affords may lead to improved efficiency in the use of transmission resources.
摘要:
One embodiment includes determining a channel quality prediction error indicative a channel quality for a first time interval. The first time interval includes of a plurality of subframes, and the channel quality prediction error is calculated based on a first channel quality indicator associated with a first sub-frame and a second channel quality indicator associated with a second sub-frame. The first subframe and the second sub-frame are temporally spaced from one another. For example, the first subframe and the second subframe are temporally spaced apart by at least the length of the first time interval. More specifically, the second subframe may be received the first time interval after the first subframe.
摘要:
A method is provided to accurately predict the probability of successfully recovering frames of (coded) information received over a wireless link, without having to decode the frame. This method includes receiving a first encoded signal and predicting link errors based on characteristics of the first encoded signal and variations in these characteristics before decoding the first encoded signal.
摘要:
A method for reliably transmitting signaling information is provided. One type of signaling information is transmitted over a primary control channel. The signaling information that is to be transmitted over the primary control channel is defined as a set of particular information. Other signaling information are conveyed over a secondary control channel. Prior to transmission, the information to be conveyed over the secondary channel is scrambled in accordance with a particular scrambling procedure that indicates the information that is to be sent over the primary control channel. The scrambling is thus used to encode the information content of the primary control channel into the information of the secondary control channel thereby further protecting the integrity of the information being conveyed over both control channels.